/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-1.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-14 22:39:21,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 22:39:21,316 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 22:39:21,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 22:39:21,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 22:39:21,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 22:39:21,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 22:39:21,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 22:39:21,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 22:39:21,355 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 22:39:21,356 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:39:21,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 22:39:21,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 22:39:21,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 22:39:21,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 22:39:21,358 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 22:39:21,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 22:39:21,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 22:39:21,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 22:39:21,608 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 22:39:21,608 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 22:39:21,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2025-03-14 22:39:22,829 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1cdaa04/6ad19ed3f0394c47a4bf85c81960f2c3/FLAG04708b732 [2025-03-14 22:39:22,996 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 22:39:22,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-parallel-sum-1.wvr.c [2025-03-14 22:39:23,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1cdaa04/6ad19ed3f0394c47a4bf85c81960f2c3/FLAG04708b732 [2025-03-14 22:39:23,018 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1cdaa04/6ad19ed3f0394c47a4bf85c81960f2c3 [2025-03-14 22:39:23,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 22:39:23,020 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-14 22:39:23,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 22:39:23,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 22:39:23,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 22:39:23,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eab6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23, skipping insertion in model container [2025-03-14 22:39:23,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 22:39:23,175 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-1.wvr.c[3694,3707] [2025-03-14 22:39:23,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:39:23,196 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 22:39:23,219 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-1.wvr.c[3694,3707] [2025-03-14 22:39:23,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 22:39:23,238 INFO L204 MainTranslator]: Completed translation [2025-03-14 22:39:23,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23 WrapperNode [2025-03-14 22:39:23,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 22:39:23,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 22:39:23,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 22:39:23,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 22:39:23,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,275 INFO L138 Inliner]: procedures = 26, calls = 48, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 288 [2025-03-14 22:39:23,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 22:39:23,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 22:39:23,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 22:39:23,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 22:39:23,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,289 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,294 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 22:39:23,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-14 22:39:23,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-14 22:39:23,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-14 22:39:23,307 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (1/1) ... [2025-03-14 22:39:23,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 22:39:23,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:23,327 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 22:39:23,329 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 22:39:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 22:39:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 22:39:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 22:39:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-14 22:39:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-14 22:39:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-14 22:39:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-14 22:39:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-14 22:39:23,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-14 22:39:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-14 22:39:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-14 22:39:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 22:39:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 22:39:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 22:39:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-14 22:39:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 22:39:23,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 22:39:23,348 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 22:39:23,426 INFO L234 CfgBuilder]: Building ICFG [2025-03-14 22:39:23,428 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 22:39:23,728 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 22:39:23,728 INFO L283 CfgBuilder]: Performing block encoding [2025-03-14 22:39:23,904 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 22:39:23,904 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-03-14 22:39:23,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:39:23 BoogieIcfgContainer [2025-03-14 22:39:23,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-14 22:39:23,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 22:39:23,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 22:39:23,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 22:39:23,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 10:39:23" (1/3) ... [2025-03-14 22:39:23,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696f9959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:39:23, skipping insertion in model container [2025-03-14 22:39:23,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 10:39:23" (2/3) ... [2025-03-14 22:39:23,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@696f9959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 10:39:23, skipping insertion in model container [2025-03-14 22:39:23,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 10:39:23" (3/3) ... [2025-03-14 22:39:23,911 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2025-03-14 22:39:23,922 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 22:39:23,924 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-1.wvr.c that has 5 procedures, 195 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-03-14 22:39:23,924 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 22:39:23,988 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-14 22:39:24,039 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 22:39:24,049 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;@4ce282f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 22:39:24,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-14 22:39:24,124 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 22:39:24,125 INFO L124 PetriNetUnfolderBase]: 14/198 cut-off events. [2025-03-14 22:39:24,126 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 22:39:24,126 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:24,127 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] [2025-03-14 22:39:24,127 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:24,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:24,131 INFO L85 PathProgramCache]: Analyzing trace with hash 485681587, now seen corresponding path program 1 times [2025-03-14 22:39:24,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:24,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051750954] [2025-03-14 22:39:24,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:24,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:24,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:24,365 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 22:39:24,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:24,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051750954] [2025-03-14 22:39:24,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051750954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:39:24,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:39:24,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 22:39:24,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386743305] [2025-03-14 22:39:24,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:24,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 22:39:24,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:24,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 22:39:24,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 22:39:24,395 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 208 [2025-03-14 22:39:24,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 208 transitions, 444 flow. Second operand has 2 states, 2 states have (on average 188.0) internal successors, (376), 2 states have internal predecessors, (376), 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 22:39:24,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:24,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 208 [2025-03-14 22:39:24,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:24,710 INFO L124 PetriNetUnfolderBase]: 426/1474 cut-off events. [2025-03-14 22:39:24,710 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES. [2025-03-14 22:39:24,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 1474 events. 426/1474 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 9736 event pairs, 212 based on Foata normal form. 299/1633 useless extension candidates. Maximal degree in co-relation 1917. Up to 567 conditions per place. [2025-03-14 22:39:24,730 INFO L140 encePairwiseOnDemand]: 198/208 looper letters, 16 selfloop transitions, 0 changer transitions 5/190 dead transitions. [2025-03-14 22:39:24,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 190 transitions, 436 flow [2025-03-14 22:39:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 22:39:24,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 22:39:24,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 390 transitions. [2025-03-14 22:39:24,744 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.9375 [2025-03-14 22:39:24,748 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, -8 predicate places. [2025-03-14 22:39:24,748 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 190 transitions, 436 flow [2025-03-14 22:39:24,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 188.0) internal successors, (376), 2 states have internal predecessors, (376), 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 22:39:24,748 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:24,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:24,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 22:39:24,749 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:24,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:24,750 INFO L85 PathProgramCache]: Analyzing trace with hash -460709045, now seen corresponding path program 1 times [2025-03-14 22:39:24,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:24,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403400412] [2025-03-14 22:39:24,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:24,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:25,337 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 22:39:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403400412] [2025-03-14 22:39:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403400412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:39:25,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:39:25,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 22:39:25,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707588707] [2025-03-14 22:39:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:25,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 22:39:25,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:25,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 22:39:25,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-14 22:39:25,341 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 208 [2025-03-14 22:39:25,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 190 transitions, 436 flow. Second operand has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 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 22:39:25,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:25,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 208 [2025-03-14 22:39:25,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:25,735 INFO L124 PetriNetUnfolderBase]: 494/1619 cut-off events. [2025-03-14 22:39:25,735 INFO L125 PetriNetUnfolderBase]: For 436/484 co-relation queries the response was YES. [2025-03-14 22:39:25,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 1619 events. 494/1619 cut-off events. For 436/484 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10812 event pairs, 140 based on Foata normal form. 0/1487 useless extension candidates. Maximal degree in co-relation 2725. Up to 682 conditions per place. [2025-03-14 22:39:25,749 INFO L140 encePairwiseOnDemand]: 193/208 looper letters, 57 selfloop transitions, 7 changer transitions 10/205 dead transitions. [2025-03-14 22:39:25,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 205 transitions, 657 flow [2025-03-14 22:39:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 22:39:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 22:39:25,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1326 transitions. [2025-03-14 22:39:25,752 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2025-03-14 22:39:25,752 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 0 predicate places. [2025-03-14 22:39:25,752 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 205 transitions, 657 flow [2025-03-14 22:39:25,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 145.57142857142858) internal successors, (1019), 7 states have internal predecessors, (1019), 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 22:39:25,753 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:25,753 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, 1, 1] [2025-03-14 22:39:25,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 22:39:25,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:25,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:25,755 INFO L85 PathProgramCache]: Analyzing trace with hash 9817852, now seen corresponding path program 1 times [2025-03-14 22:39:25,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:25,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139130613] [2025-03-14 22:39:25,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:25,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:26,078 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 22:39:26,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:26,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139130613] [2025-03-14 22:39:26,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139130613] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:39:26,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:39:26,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 22:39:26,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748046375] [2025-03-14 22:39:26,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:26,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:39:26,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:26,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:39:26,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-14 22:39:26,083 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 208 [2025-03-14 22:39:26,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 205 transitions, 657 flow. Second operand has 9 states, 9 states have (on average 130.55555555555554) internal successors, (1175), 9 states have internal predecessors, (1175), 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 22:39:26,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:26,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 208 [2025-03-14 22:39:26,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:26,680 INFO L124 PetriNetUnfolderBase]: 550/1931 cut-off events. [2025-03-14 22:39:26,680 INFO L125 PetriNetUnfolderBase]: For 927/1031 co-relation queries the response was YES. [2025-03-14 22:39:26,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4547 conditions, 1931 events. 550/1931 cut-off events. For 927/1031 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 13687 event pairs, 146 based on Foata normal form. 36/1810 useless extension candidates. Maximal degree in co-relation 3334. Up to 774 conditions per place. [2025-03-14 22:39:26,699 INFO L140 encePairwiseOnDemand]: 195/208 looper letters, 104 selfloop transitions, 13 changer transitions 17/250 dead transitions. [2025-03-14 22:39:26,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 250 transitions, 1166 flow [2025-03-14 22:39:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-14 22:39:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-14 22:39:26,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1598 transitions. [2025-03-14 22:39:26,702 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6402243589743589 [2025-03-14 22:39:26,703 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 11 predicate places. [2025-03-14 22:39:26,703 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 250 transitions, 1166 flow [2025-03-14 22:39:26,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 130.55555555555554) internal successors, (1175), 9 states have internal predecessors, (1175), 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 22:39:26,707 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:26,707 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, 1, 1] [2025-03-14 22:39:26,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 22:39:26,707 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:26,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:26,708 INFO L85 PathProgramCache]: Analyzing trace with hash -163999566, now seen corresponding path program 1 times [2025-03-14 22:39:26,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:26,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966567617] [2025-03-14 22:39:26,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:26,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:27,025 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 22:39:27,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:27,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966567617] [2025-03-14 22:39:27,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966567617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:39:27,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:39:27,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 22:39:27,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677619641] [2025-03-14 22:39:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:27,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:39:27,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:27,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:39:27,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-14 22:39:27,028 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 208 [2025-03-14 22:39:27,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 250 transitions, 1166 flow. Second operand has 9 states, 9 states have (on average 130.55555555555554) internal successors, (1175), 9 states have internal predecessors, (1175), 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 22:39:27,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:27,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 208 [2025-03-14 22:39:27,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:27,432 INFO L124 PetriNetUnfolderBase]: 494/1709 cut-off events. [2025-03-14 22:39:27,432 INFO L125 PetriNetUnfolderBase]: For 1272/1416 co-relation queries the response was YES. [2025-03-14 22:39:27,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4773 conditions, 1709 events. 494/1709 cut-off events. For 1272/1416 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 11397 event pairs, 140 based on Foata normal form. 8/1579 useless extension candidates. Maximal degree in co-relation 3943. Up to 694 conditions per place. [2025-03-14 22:39:27,447 INFO L140 encePairwiseOnDemand]: 195/208 looper letters, 77 selfloop transitions, 6 changer transitions 33/232 dead transitions. [2025-03-14 22:39:27,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 232 transitions, 1253 flow [2025-03-14 22:39:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-14 22:39:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-14 22:39:27,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1591 transitions. [2025-03-14 22:39:27,451 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6374198717948718 [2025-03-14 22:39:27,452 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 22 predicate places. [2025-03-14 22:39:27,452 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 232 transitions, 1253 flow [2025-03-14 22:39:27,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 130.55555555555554) internal successors, (1175), 9 states have internal predecessors, (1175), 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 22:39:27,453 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:27,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:27,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 22:39:27,454 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:27,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash 33066067, now seen corresponding path program 1 times [2025-03-14 22:39:27,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:27,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471342383] [2025-03-14 22:39:27,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:27,792 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 22:39:27,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:27,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471342383] [2025-03-14 22:39:27,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471342383] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:27,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744295821] [2025-03-14 22:39:27,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:27,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:27,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:27,797 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 22:39:27,805 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 22:39:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:27,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-14 22:39:27,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:39:28,262 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 22:39:28,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:39:28,500 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 22:39:28,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744295821] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:39:28,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:39:28,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2025-03-14 22:39:28,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535384411] [2025-03-14 22:39:28,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:39:28,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-14 22:39:28,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:28,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-14 22:39:28,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2025-03-14 22:39:28,504 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 208 [2025-03-14 22:39:28,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 232 transitions, 1253 flow. Second operand has 24 states, 24 states have (on average 127.54166666666667) internal successors, (3061), 24 states have internal predecessors, (3061), 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 22:39:28,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:28,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 208 [2025-03-14 22:39:28,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:29,232 INFO L124 PetriNetUnfolderBase]: 550/2022 cut-off events. [2025-03-14 22:39:29,233 INFO L125 PetriNetUnfolderBase]: For 2326/2534 co-relation queries the response was YES. [2025-03-14 22:39:29,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6440 conditions, 2022 events. 550/2022 cut-off events. For 2326/2534 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 14223 event pairs, 146 based on Foata normal form. 36/1895 useless extension candidates. Maximal degree in co-relation 4552. Up to 807 conditions per place. [2025-03-14 22:39:29,251 INFO L140 encePairwiseOnDemand]: 179/208 looper letters, 94 selfloop transitions, 29 changer transitions 40/278 dead transitions. [2025-03-14 22:39:29,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 278 transitions, 2002 flow [2025-03-14 22:39:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-14 22:39:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-14 22:39:29,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3070 transitions. [2025-03-14 22:39:29,256 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6149839743589743 [2025-03-14 22:39:29,257 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 45 predicate places. [2025-03-14 22:39:29,257 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 278 transitions, 2002 flow [2025-03-14 22:39:29,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 127.54166666666667) internal successors, (3061), 24 states have internal predecessors, (3061), 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 22:39:29,258 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:29,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:29,266 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 22:39:29,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:29,460 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:29,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:29,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1966222755, now seen corresponding path program 1 times [2025-03-14 22:39:29,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:29,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664304652] [2025-03-14 22:39:29,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:29,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:39:29,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:29,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664304652] [2025-03-14 22:39:29,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664304652] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:39:29,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:39:29,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-14 22:39:29,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937502607] [2025-03-14 22:39:29,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:29,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-14 22:39:29,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:29,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-14 22:39:29,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-14 22:39:29,685 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 208 [2025-03-14 22:39:29,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 278 transitions, 2002 flow. Second operand has 8 states, 8 states have (on average 145.875) internal successors, (1167), 8 states have internal predecessors, (1167), 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 22:39:29,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:29,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 208 [2025-03-14 22:39:29,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:30,079 INFO L124 PetriNetUnfolderBase]: 588/2120 cut-off events. [2025-03-14 22:39:30,079 INFO L125 PetriNetUnfolderBase]: For 3340/3610 co-relation queries the response was YES. [2025-03-14 22:39:30,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7741 conditions, 2120 events. 588/2120 cut-off events. For 3340/3610 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 15285 event pairs, 172 based on Foata normal form. 0/1952 useless extension candidates. Maximal degree in co-relation 5545. Up to 866 conditions per place. [2025-03-14 22:39:30,096 INFO L140 encePairwiseOnDemand]: 193/208 looper letters, 57 selfloop transitions, 12 changer transitions 80/290 dead transitions. [2025-03-14 22:39:30,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 290 transitions, 2441 flow [2025-03-14 22:39:30,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-14 22:39:30,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-14 22:39:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1629 transitions. [2025-03-14 22:39:30,099 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7119755244755245 [2025-03-14 22:39:30,099 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 55 predicate places. [2025-03-14 22:39:30,099 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 290 transitions, 2441 flow [2025-03-14 22:39:30,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 145.875) internal successors, (1167), 8 states have internal predecessors, (1167), 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 22:39:30,100 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:30,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:30,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 22:39:30,100 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:30,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:30,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1029089682, now seen corresponding path program 2 times [2025-03-14 22:39:30,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:30,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886486423] [2025-03-14 22:39:30,101 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:39:30,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:30,124 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:39:30,124 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:30,317 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 22:39:30,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:30,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886486423] [2025-03-14 22:39:30,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886486423] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:30,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234848542] [2025-03-14 22:39:30,317 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:39:30,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:30,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:30,319 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 22:39:30,321 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 22:39:30,414 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:39:30,414 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:30,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-14 22:39:30,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:39:30,766 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 22:39:30,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:39:30,863 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 22:39:30,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234848542] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:39:30,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:39:30,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2025-03-14 22:39:30,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784757346] [2025-03-14 22:39:30,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:39:30,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 22:39:30,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:30,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 22:39:30,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-03-14 22:39:30,867 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 208 [2025-03-14 22:39:30,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 290 transitions, 2441 flow. Second operand has 13 states, 13 states have (on average 143.6153846153846) internal successors, (1867), 13 states have internal predecessors, (1867), 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 22:39:30,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:30,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 208 [2025-03-14 22:39:30,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:31,745 INFO L124 PetriNetUnfolderBase]: 1373/4099 cut-off events. [2025-03-14 22:39:31,745 INFO L125 PetriNetUnfolderBase]: For 8849/9569 co-relation queries the response was YES. [2025-03-14 22:39:31,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18345 conditions, 4099 events. 1373/4099 cut-off events. For 8849/9569 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 33597 event pairs, 60 based on Foata normal form. 0/3802 useless extension candidates. Maximal degree in co-relation 15070. Up to 1941 conditions per place. [2025-03-14 22:39:31,780 INFO L140 encePairwiseOnDemand]: 191/208 looper letters, 94 selfloop transitions, 24 changer transitions 111/368 dead transitions. [2025-03-14 22:39:31,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 368 transitions, 4008 flow [2025-03-14 22:39:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-14 22:39:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-14 22:39:31,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 3454 transitions. [2025-03-14 22:39:31,786 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6919070512820513 [2025-03-14 22:39:31,788 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 78 predicate places. [2025-03-14 22:39:31,788 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 368 transitions, 4008 flow [2025-03-14 22:39:31,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 143.6153846153846) internal successors, (1867), 13 states have internal predecessors, (1867), 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 22:39:31,789 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:31,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:31,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-14 22:39:31,993 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 22:39:31,993 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:31,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:31,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1189102355, now seen corresponding path program 1 times [2025-03-14 22:39:31,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:31,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907902603] [2025-03-14 22:39:31,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:31,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:32,946 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 22:39:32,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:32,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907902603] [2025-03-14 22:39:32,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907902603] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:32,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046189327] [2025-03-14 22:39:32,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:39:32,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:32,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:32,950 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 22:39:32,951 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 22:39:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:39:33,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-14 22:39:33,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:39:33,550 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 22:39:33,648 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 22:39:33,649 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:39:33,872 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-14 22:39:33,872 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 12 [2025-03-14 22:39:33,986 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 22:39:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046189327] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:39:33,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:39:33,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 10] total 34 [2025-03-14 22:39:33,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890089733] [2025-03-14 22:39:33,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:39:33,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:39:33,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:33,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:39:33,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:39:33,991 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 208 [2025-03-14 22:39:33,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 368 transitions, 4008 flow. Second operand has 34 states, 34 states have (on average 116.11764705882354) internal successors, (3948), 34 states have internal predecessors, (3948), 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 22:39:33,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:33,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 208 [2025-03-14 22:39:33,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:36,946 INFO L124 PetriNetUnfolderBase]: 2463/6701 cut-off events. [2025-03-14 22:39:36,947 INFO L125 PetriNetUnfolderBase]: For 17513/18339 co-relation queries the response was YES. [2025-03-14 22:39:36,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35804 conditions, 6701 events. 2463/6701 cut-off events. For 17513/18339 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 60550 event pairs, 21 based on Foata normal form. 4/6273 useless extension candidates. Maximal degree in co-relation 30328. Up to 3509 conditions per place. [2025-03-14 22:39:37,012 INFO L140 encePairwiseOnDemand]: 174/208 looper letters, 288 selfloop transitions, 287 changer transitions 205/885 dead transitions. [2025-03-14 22:39:37,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 885 transitions, 14204 flow [2025-03-14 22:39:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-14 22:39:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-14 22:39:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7211 transitions. [2025-03-14 22:39:37,020 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5683322824716267 [2025-03-14 22:39:37,020 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 138 predicate places. [2025-03-14 22:39:37,020 INFO L471 AbstractCegarLoop]: Abstraction has has 345 places, 885 transitions, 14204 flow [2025-03-14 22:39:37,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 116.11764705882354) internal successors, (3948), 34 states have internal predecessors, (3948), 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 22:39:37,022 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:37,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:37,029 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 22:39:37,222 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 22:39:37,223 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:37,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash 334022987, now seen corresponding path program 2 times [2025-03-14 22:39:37,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:37,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696322904] [2025-03-14 22:39:37,224 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:39:37,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:37,245 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:39:37,245 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:37,588 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 22:39:37,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:37,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696322904] [2025-03-14 22:39:37,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696322904] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:37,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006845428] [2025-03-14 22:39:37,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:39:37,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:37,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:37,594 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 22:39:37,595 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 22:39:37,684 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:39:37,684 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:37,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-14 22:39:37,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:39:37,835 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 19 treesize of output 1 [2025-03-14 22:39:38,416 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 22:39:38,713 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 22:39:38,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:39:39,229 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 22:39:39,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006845428] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:39:39,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:39:39,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 11] total 34 [2025-03-14 22:39:39,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933233914] [2025-03-14 22:39:39,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:39:39,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:39:39,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:39,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:39:39,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:39:39,235 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:39:39,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 885 transitions, 14204 flow. Second operand has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:39:39,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:39,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:39:39,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:42,769 INFO L124 PetriNetUnfolderBase]: 5370/14081 cut-off events. [2025-03-14 22:39:42,769 INFO L125 PetriNetUnfolderBase]: For 47531/51017 co-relation queries the response was YES. [2025-03-14 22:39:42,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84221 conditions, 14081 events. 5370/14081 cut-off events. For 47531/51017 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 143903 event pairs, 49 based on Foata normal form. 46/13221 useless extension candidates. Maximal degree in co-relation 37531. Up to 7583 conditions per place. [2025-03-14 22:39:42,962 INFO L140 encePairwiseOnDemand]: 176/208 looper letters, 1060 selfloop transitions, 394 changer transitions 336/1897 dead transitions. [2025-03-14 22:39:42,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 1897 transitions, 36481 flow [2025-03-14 22:39:42,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2025-03-14 22:39:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2025-03-14 22:39:42,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 9277 transitions. [2025-03-14 22:39:42,971 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5792332667332667 [2025-03-14 22:39:42,973 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 214 predicate places. [2025-03-14 22:39:42,973 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 1897 transitions, 36481 flow [2025-03-14 22:39:42,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:39:42,975 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:42,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:42,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-14 22:39:43,177 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 22:39:43,178 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:43,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:43,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1310340645, now seen corresponding path program 3 times [2025-03-14 22:39:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:43,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085308886] [2025-03-14 22:39:43,178 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:39:43,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:43,261 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:39:43,261 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:43,593 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 22:39:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085308886] [2025-03-14 22:39:43,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085308886] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:39:43,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:39:43,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 22:39:43,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242606601] [2025-03-14 22:39:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:43,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:39:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:43,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:39:43,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:39:43,596 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:39:43,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 1897 transitions, 36481 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:39:43,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:43,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:39:43,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:46,944 INFO L124 PetriNetUnfolderBase]: 5531/14487 cut-off events. [2025-03-14 22:39:46,944 INFO L125 PetriNetUnfolderBase]: For 60603/64487 co-relation queries the response was YES. [2025-03-14 22:39:46,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94593 conditions, 14487 events. 5531/14487 cut-off events. For 60603/64487 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 149045 event pairs, 49 based on Foata normal form. 29/13594 useless extension candidates. Maximal degree in co-relation 42026. Up to 7813 conditions per place. [2025-03-14 22:39:47,099 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 1302 selfloop transitions, 204 changer transitions 346/1989 dead transitions. [2025-03-14 22:39:47,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 1989 transitions, 42086 flow [2025-03-14 22:39:47,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:39:47,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:39:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2079 transitions. [2025-03-14 22:39:47,101 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6663461538461538 [2025-03-14 22:39:47,102 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 228 predicate places. [2025-03-14 22:39:47,102 INFO L471 AbstractCegarLoop]: Abstraction has has 435 places, 1989 transitions, 42086 flow [2025-03-14 22:39:47,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:39:47,102 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:47,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:47,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-14 22:39:47,103 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:47,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:47,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1394808407, now seen corresponding path program 4 times [2025-03-14 22:39:47,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:47,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213853453] [2025-03-14 22:39:47,103 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:39:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:47,120 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:39:47,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:47,419 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 22:39:47,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213853453] [2025-03-14 22:39:47,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213853453] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:47,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094008396] [2025-03-14 22:39:47,420 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:39:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:47,422 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 22:39:47,423 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 22:39:47,503 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:39:47,503 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:47,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-14 22:39:47,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:39:48,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:39:48,099 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 21 treesize of output 15 [2025-03-14 22:39:48,292 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 22:39:48,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:39:48,631 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 22:39:48,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094008396] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:39:48,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:39:48,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 11] total 34 [2025-03-14 22:39:48,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767693735] [2025-03-14 22:39:48,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:39:48,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:39:48,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:48,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:39:48,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:39:48,634 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:39:48,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 1989 transitions, 42086 flow. Second operand has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:39:48,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:48,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:39:48,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:39:54,891 INFO L124 PetriNetUnfolderBase]: 6791/17586 cut-off events. [2025-03-14 22:39:54,891 INFO L125 PetriNetUnfolderBase]: For 87250/91437 co-relation queries the response was YES. [2025-03-14 22:39:54,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125891 conditions, 17586 events. 6791/17586 cut-off events. For 87250/91437 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 186370 event pairs, 47 based on Foata normal form. 116/16636 useless extension candidates. Maximal degree in co-relation 61521. Up to 9630 conditions per place. [2025-03-14 22:39:55,100 INFO L140 encePairwiseOnDemand]: 176/208 looper letters, 1349 selfloop transitions, 664 changer transitions 417/2537 dead transitions. [2025-03-14 22:39:55,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 526 places, 2537 transitions, 59373 flow [2025-03-14 22:39:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2025-03-14 22:39:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2025-03-14 22:39:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 11071 transitions. [2025-03-14 22:39:55,106 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5785430602006689 [2025-03-14 22:39:55,106 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 319 predicate places. [2025-03-14 22:39:55,106 INFO L471 AbstractCegarLoop]: Abstraction has has 526 places, 2537 transitions, 59373 flow [2025-03-14 22:39:55,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:39:55,107 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:39:55,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:39:55,113 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 22:39:55,312 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,SelfDestructingSolverStorable10 [2025-03-14 22:39:55,312 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:39:55,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:39:55,313 INFO L85 PathProgramCache]: Analyzing trace with hash -582308761, now seen corresponding path program 5 times [2025-03-14 22:39:55,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:39:55,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068233643] [2025-03-14 22:39:55,314 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:39:55,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:39:55,340 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:39:55,340 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:56,204 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 22:39:56,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:39:56,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068233643] [2025-03-14 22:39:56,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068233643] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:56,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672536784] [2025-03-14 22:39:56,204 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:39:56,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:39:56,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:39:56,206 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 22:39:56,207 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 22:39:56,292 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:39:56,292 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:39:56,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-14 22:39:56,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:39:56,562 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:39:56,562 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 21 treesize of output 15 [2025-03-14 22:39:56,717 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 22:39:56,717 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:39:56,886 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 22:39:56,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672536784] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:39:56,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:39:56,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [19, 13] total 34 [2025-03-14 22:39:56,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384532670] [2025-03-14 22:39:56,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:39:56,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:39:56,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:39:56,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:39:56,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1000, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:39:56,888 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:39:56,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 526 places, 2537 transitions, 59373 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:39:56,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:39:56,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:39:56,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:01,343 INFO L124 PetriNetUnfolderBase]: 6898/17776 cut-off events. [2025-03-14 22:40:01,343 INFO L125 PetriNetUnfolderBase]: For 104087/108170 co-relation queries the response was YES. [2025-03-14 22:40:01,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137678 conditions, 17776 events. 6898/17776 cut-off events. For 104087/108170 co-relation queries the response was YES. Maximal size of possible extension queue 871. Compared 188279 event pairs, 34 based on Foata normal form. 65/16789 useless extension candidates. Maximal degree in co-relation 66548. Up to 9788 conditions per place. [2025-03-14 22:40:01,575 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 1843 selfloop transitions, 186 changer transitions 427/2593 dead transitions. [2025-03-14 22:40:01,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 2593 transitions, 65654 flow [2025-03-14 22:40:01,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:40:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:40:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2079 transitions. [2025-03-14 22:40:01,577 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6663461538461538 [2025-03-14 22:40:01,577 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 333 predicate places. [2025-03-14 22:40:01,577 INFO L471 AbstractCegarLoop]: Abstraction has has 540 places, 2593 transitions, 65654 flow [2025-03-14 22:40:01,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:40:01,577 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:01,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:01,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-14 22:40:01,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:01,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:40:01,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1549836747, now seen corresponding path program 6 times [2025-03-14 22:40:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:01,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635100034] [2025-03-14 22:40:01,783 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:40:01,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:01,799 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-14 22:40:01,800 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:02,026 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 22:40:02,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:02,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635100034] [2025-03-14 22:40:02,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635100034] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:02,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:02,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 22:40:02,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379828860] [2025-03-14 22:40:02,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:02,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:40:02,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:02,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:40:02,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:40:02,029 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:40:02,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 2593 transitions, 65654 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:40:02,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:02,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:40:02,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:07,381 INFO L124 PetriNetUnfolderBase]: 6979/18098 cut-off events. [2025-03-14 22:40:07,382 INFO L125 PetriNetUnfolderBase]: For 125387/130326 co-relation queries the response was YES. [2025-03-14 22:40:07,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149438 conditions, 18098 events. 6979/18098 cut-off events. For 125387/130326 co-relation queries the response was YES. Maximal size of possible extension queue 892. Compared 193128 event pairs, 38 based on Foata normal form. 41/17061 useless extension candidates. Maximal degree in co-relation 71749. Up to 9910 conditions per place. [2025-03-14 22:40:07,638 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 1883 selfloop transitions, 186 changer transitions 437/2643 dead transitions. [2025-03-14 22:40:07,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 554 places, 2643 transitions, 71979 flow [2025-03-14 22:40:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:40:07,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:40:07,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2077 transitions. [2025-03-14 22:40:07,640 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6657051282051282 [2025-03-14 22:40:07,641 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 347 predicate places. [2025-03-14 22:40:07,641 INFO L471 AbstractCegarLoop]: Abstraction has has 554 places, 2643 transitions, 71979 flow [2025-03-14 22:40:07,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:40:07,641 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:07,642 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:07,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-14 22:40:07,642 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:40:07,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash -541200215, now seen corresponding path program 1 times [2025-03-14 22:40:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:07,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286500401] [2025-03-14 22:40:07,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:07,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:08,329 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 22:40:08,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:08,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286500401] [2025-03-14 22:40:08,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286500401] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:08,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440790471] [2025-03-14 22:40:08,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:40:08,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:08,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:08,332 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 22:40:08,333 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 22:40:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:40:08,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-14 22:40:08,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:08,987 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 22:40:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:40:09,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:09,426 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 22:40:09,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440790471] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:09,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:09,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 10] total 34 [2025-03-14 22:40:09,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415925407] [2025-03-14 22:40:09,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:09,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:40:09,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:09,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:40:09,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:40:09,429 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 208 [2025-03-14 22:40:09,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 2643 transitions, 71979 flow. Second operand has 34 states, 34 states have (on average 116.11764705882354) internal successors, (3948), 34 states have internal predecessors, (3948), 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 22:40:09,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:09,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 208 [2025-03-14 22:40:09,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:17,800 INFO L124 PetriNetUnfolderBase]: 8182/20997 cut-off events. [2025-03-14 22:40:17,800 INFO L125 PetriNetUnfolderBase]: For 166915/173308 co-relation queries the response was YES. [2025-03-14 22:40:17,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187007 conditions, 20997 events. 8182/20997 cut-off events. For 166915/173308 co-relation queries the response was YES. Maximal size of possible extension queue 1048. Compared 228014 event pairs, 53 based on Foata normal form. 115/19878 useless extension candidates. Maximal degree in co-relation 88163. Up to 11661 conditions per place. [2025-03-14 22:40:18,151 INFO L140 encePairwiseOnDemand]: 174/208 looper letters, 1983 selfloop transitions, 682 changer transitions 517/3288 dead transitions. [2025-03-14 22:40:18,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 3288 transitions, 96681 flow [2025-03-14 22:40:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-14 22:40:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-14 22:40:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 7208 transitions. [2025-03-14 22:40:18,155 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5680958385876419 [2025-03-14 22:40:18,155 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 407 predicate places. [2025-03-14 22:40:18,156 INFO L471 AbstractCegarLoop]: Abstraction has has 614 places, 3288 transitions, 96681 flow [2025-03-14 22:40:18,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 116.11764705882354) internal successors, (3948), 34 states have internal predecessors, (3948), 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 22:40:18,157 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:18,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:18,162 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 22:40:18,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:18,361 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:40:18,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1446786051, now seen corresponding path program 2 times [2025-03-14 22:40:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966906584] [2025-03-14 22:40:18,362 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:18,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:18,384 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:18,384 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:18,575 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 22:40:18,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:18,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966906584] [2025-03-14 22:40:18,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966906584] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:18,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719725684] [2025-03-14 22:40:18,576 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:40:18,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:18,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:18,577 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 22:40:18,579 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 22:40:18,659 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:40:18,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:18,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-14 22:40:18,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:18,771 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 19 treesize of output 1 [2025-03-14 22:40:19,146 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 22:40:19,301 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 22:40:19,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:19,738 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 22:40:19,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719725684] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:19,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:19,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 11] total 34 [2025-03-14 22:40:19,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000628790] [2025-03-14 22:40:19,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:19,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:40:19,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:19,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:40:19,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:40:19,740 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:40:19,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 3288 transitions, 96681 flow. Second operand has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:40:19,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:19,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:40:19,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:29,136 INFO L124 PetriNetUnfolderBase]: 8356/21429 cut-off events. [2025-03-14 22:40:29,136 INFO L125 PetriNetUnfolderBase]: For 197452/205012 co-relation queries the response was YES. [2025-03-14 22:40:29,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202953 conditions, 21429 events. 8356/21429 cut-off events. For 197452/205012 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 232826 event pairs, 43 based on Foata normal form. 94/20270 useless extension candidates. Maximal degree in co-relation 94864. Up to 11911 conditions per place. [2025-03-14 22:40:29,444 INFO L140 encePairwiseOnDemand]: 176/208 looper letters, 2397 selfloop transitions, 393 changer transitions 545/3442 dead transitions. [2025-03-14 22:40:29,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 690 places, 3442 transitions, 108037 flow [2025-03-14 22:40:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2025-03-14 22:40:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2025-03-14 22:40:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 9239 transitions. [2025-03-14 22:40:29,448 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5768606393606394 [2025-03-14 22:40:29,449 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 483 predicate places. [2025-03-14 22:40:29,449 INFO L471 AbstractCegarLoop]: Abstraction has has 690 places, 3442 transitions, 108037 flow [2025-03-14 22:40:29,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:40:29,450 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:29,450 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:29,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-14 22:40:29,654 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,SelfDestructingSolverStorable14 [2025-03-14 22:40:29,654 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:40:29,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1710040773, now seen corresponding path program 3 times [2025-03-14 22:40:29,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:29,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344476052] [2025-03-14 22:40:29,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:40:29,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:29,676 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:40:29,677 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:29,845 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 22:40:29,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:29,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344476052] [2025-03-14 22:40:29,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344476052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:40:29,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:40:29,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 22:40:29,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826697044] [2025-03-14 22:40:29,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:29,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:40:29,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:29,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:40:29,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:40:29,846 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:40:29,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 3442 transitions, 108037 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:40:29,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:29,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:40:29,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:39,367 INFO L124 PetriNetUnfolderBase]: 8435/21780 cut-off events. [2025-03-14 22:40:39,368 INFO L125 PetriNetUnfolderBase]: For 231317/240237 co-relation queries the response was YES. [2025-03-14 22:40:39,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217174 conditions, 21780 events. 8435/21780 cut-off events. For 231317/240237 co-relation queries the response was YES. Maximal size of possible extension queue 1074. Compared 238093 event pairs, 44 based on Foata normal form. 75/20570 useless extension candidates. Maximal degree in co-relation 101003. Up to 12030 conditions per place. [2025-03-14 22:40:39,935 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 2611 selfloop transitions, 197 changer transitions 555/3500 dead transitions. [2025-03-14 22:40:39,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 704 places, 3500 transitions, 116638 flow [2025-03-14 22:40:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:40:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:40:39,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2077 transitions. [2025-03-14 22:40:39,936 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6657051282051282 [2025-03-14 22:40:39,937 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 497 predicate places. [2025-03-14 22:40:39,937 INFO L471 AbstractCegarLoop]: Abstraction has has 704 places, 3500 transitions, 116638 flow [2025-03-14 22:40:39,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:40:39,937 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:39,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-14 22:40:39,937 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:40:39,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1422574235, now seen corresponding path program 4 times [2025-03-14 22:40:39,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:39,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258310126] [2025-03-14 22:40:39,938 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:40:39,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:39,957 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:40:39,957 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:40,884 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 22:40:40,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258310126] [2025-03-14 22:40:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258310126] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:40,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537458302] [2025-03-14 22:40:40,885 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:40:40,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:40,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:40,886 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 22:40:40,888 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 22:40:40,969 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:40:40,969 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:40,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-03-14 22:40:40,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:41,512 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:40:41,512 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 21 treesize of output 15 [2025-03-14 22:40:41,757 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 22:40:41,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:42,133 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 22:40:42,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537458302] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:40:42,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:40:42,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 11] total 46 [2025-03-14 22:40:42,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528676896] [2025-03-14 22:40:42,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:40:42,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-14 22:40:42,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:42,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-14 22:40:42,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1894, Unknown=0, NotChecked=0, Total=2070 [2025-03-14 22:40:42,136 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 208 [2025-03-14 22:40:42,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 3500 transitions, 116638 flow. Second operand has 46 states, 46 states have (on average 110.8913043478261) internal successors, (5101), 46 states have internal predecessors, (5101), 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 22:40:42,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:42,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 208 [2025-03-14 22:40:42,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:40:54,858 INFO L124 PetriNetUnfolderBase]: 8370/21375 cut-off events. [2025-03-14 22:40:54,859 INFO L125 PetriNetUnfolderBase]: For 250001/257784 co-relation queries the response was YES. [2025-03-14 22:40:54,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227287 conditions, 21375 events. 8370/21375 cut-off events. For 250001/257784 co-relation queries the response was YES. Maximal size of possible extension queue 1071. Compared 231235 event pairs, 42 based on Foata normal form. 68/20212 useless extension candidates. Maximal degree in co-relation 104500. Up to 11937 conditions per place. [2025-03-14 22:40:55,206 INFO L140 encePairwiseOnDemand]: 169/208 looper letters, 2651 selfloop transitions, 318 changer transitions 569/3638 dead transitions. [2025-03-14 22:40:55,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 802 places, 3638 transitions, 128308 flow [2025-03-14 22:40:55,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2025-03-14 22:40:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2025-03-14 22:40:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 11581 transitions. [2025-03-14 22:40:55,211 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.535364275147929 [2025-03-14 22:40:55,211 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 595 predicate places. [2025-03-14 22:40:55,212 INFO L471 AbstractCegarLoop]: Abstraction has has 802 places, 3638 transitions, 128308 flow [2025-03-14 22:40:55,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 110.8913043478261) internal successors, (5101), 46 states have internal predecessors, (5101), 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 22:40:55,213 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:40:55,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:40:55,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-14 22:40:55,413 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,SelfDestructingSolverStorable16 [2025-03-14 22:40:55,413 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:40:55,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:40:55,414 INFO L85 PathProgramCache]: Analyzing trace with hash 548927107, now seen corresponding path program 5 times [2025-03-14 22:40:55,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:40:55,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475381020] [2025-03-14 22:40:55,414 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:40:55,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:40:55,427 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:40:55,427 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 22:40:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:40:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475381020] [2025-03-14 22:40:55,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475381020] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359007562] [2025-03-14 22:40:55,846 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:40:55,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:40:55,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:40:55,848 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 22:40:55,850 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 22:40:55,928 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:40:55,928 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:40:55,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-14 22:40:55,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:40:56,272 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 22:40:56,399 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 22:40:56,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:40:56,522 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-14 22:40:56,522 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 12 [2025-03-14 22:40:56,648 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 22:40:56,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359007562] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:40:56,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:40:56,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14, 18] total 29 [2025-03-14 22:40:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624860686] [2025-03-14 22:40:56,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:40:56,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-14 22:40:56,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:40:56,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-14 22:40:56,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=686, Unknown=0, NotChecked=0, Total=812 [2025-03-14 22:40:56,651 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:40:56,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 802 places, 3638 transitions, 128308 flow. Second operand has 10 states, 10 states have (on average 135.9) internal successors, (1359), 10 states have internal predecessors, (1359), 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 22:40:56,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:40:56,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:40:56,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:05,930 INFO L124 PetriNetUnfolderBase]: 8418/21533 cut-off events. [2025-03-14 22:41:05,930 INFO L125 PetriNetUnfolderBase]: For 284691/293937 co-relation queries the response was YES. [2025-03-14 22:41:05,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240835 conditions, 21533 events. 8418/21533 cut-off events. For 284691/293937 co-relation queries the response was YES. Maximal size of possible extension queue 1075. Compared 233657 event pairs, 47 based on Foata normal form. 59/20346 useless extension candidates. Maximal degree in co-relation 110676. Up to 12015 conditions per place. [2025-03-14 22:41:06,436 INFO L140 encePairwiseOnDemand]: 191/208 looper letters, 2916 selfloop transitions, 63 changer transitions 579/3698 dead transitions. [2025-03-14 22:41:06,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 813 places, 3698 transitions, 137588 flow [2025-03-14 22:41:06,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-14 22:41:06,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-14 22:41:06,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1659 transitions. [2025-03-14 22:41:06,437 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6646634615384616 [2025-03-14 22:41:06,438 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 606 predicate places. [2025-03-14 22:41:06,438 INFO L471 AbstractCegarLoop]: Abstraction has has 813 places, 3698 transitions, 137588 flow [2025-03-14 22:41:06,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 135.9) internal successors, (1359), 10 states have internal predecessors, (1359), 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 22:41:06,438 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:06,438 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:06,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-14 22:41:06,639 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,SelfDestructingSolverStorable17 [2025-03-14 22:41:06,639 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:41:06,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1704474181, now seen corresponding path program 6 times [2025-03-14 22:41:06,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:06,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885932703] [2025-03-14 22:41:06,640 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:41:06,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:06,654 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:41:06,654 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:06,821 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 22:41:06,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:06,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885932703] [2025-03-14 22:41:06,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885932703] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:06,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788043503] [2025-03-14 22:41:06,821 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:41:06,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:06,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:06,823 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 22:41:06,825 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 22:41:06,918 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:41:06,918 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:06,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-03-14 22:41:06,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:07,034 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 19 treesize of output 1 [2025-03-14 22:41:07,397 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 22:41:07,589 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 22:41:07,589 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:07,946 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 22:41:07,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788043503] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:07,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:07,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 11] total 34 [2025-03-14 22:41:07,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545526376] [2025-03-14 22:41:07,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:07,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:41:07,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:07,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:41:07,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:41:07,949 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:41:07,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 813 places, 3698 transitions, 137588 flow. Second operand has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:41:07,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:07,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:41:07,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:19,855 INFO L124 PetriNetUnfolderBase]: 8586/22134 cut-off events. [2025-03-14 22:41:19,855 INFO L125 PetriNetUnfolderBase]: For 335510/347072 co-relation queries the response was YES. [2025-03-14 22:41:19,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258593 conditions, 22134 events. 8586/22134 cut-off events. For 335510/347072 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 242297 event pairs, 40 based on Foata normal form. 147/20991 useless extension candidates. Maximal degree in co-relation 116729. Up to 12280 conditions per place. [2025-03-14 22:41:20,419 INFO L140 encePairwiseOnDemand]: 176/208 looper letters, 2762 selfloop transitions, 350 changer transitions 612/3834 dead transitions. [2025-03-14 22:41:20,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 885 places, 3834 transitions, 150266 flow [2025-03-14 22:41:20,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-03-14 22:41:20,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2025-03-14 22:41:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 8765 transitions. [2025-03-14 22:41:20,422 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5772523709167545 [2025-03-14 22:41:20,422 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 678 predicate places. [2025-03-14 22:41:20,422 INFO L471 AbstractCegarLoop]: Abstraction has has 885 places, 3834 transitions, 150266 flow [2025-03-14 22:41:20,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:41:20,423 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:20,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:20,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-14 22:41:20,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:20,628 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:41:20,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash -921330513, now seen corresponding path program 1 times [2025-03-14 22:41:20,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:20,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237851970] [2025-03-14 22:41:20,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:41:20,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:41:21,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:21,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237851970] [2025-03-14 22:41:21,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237851970] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:21,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358444602] [2025-03-14 22:41:21,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:41:21,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:21,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:21,121 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 22:41:21,123 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 22:41:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:41:21,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-14 22:41:21,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:21,577 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 22:41:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:41:21,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:21,864 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:41:21,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358444602] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:21,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:21,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 10] total 34 [2025-03-14 22:41:21,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388559039] [2025-03-14 22:41:21,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:21,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:41:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:21,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:41:21,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:41:21,866 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 208 [2025-03-14 22:41:21,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 885 places, 3834 transitions, 150266 flow. Second operand has 34 states, 34 states have (on average 116.11764705882354) internal successors, (3948), 34 states have internal predecessors, (3948), 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 22:41:21,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:21,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 208 [2025-03-14 22:41:21,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:36,229 INFO L124 PetriNetUnfolderBase]: 10028/25833 cut-off events. [2025-03-14 22:41:36,229 INFO L125 PetriNetUnfolderBase]: For 425656/439521 co-relation queries the response was YES. [2025-03-14 22:41:36,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316147 conditions, 25833 events. 10028/25833 cut-off events. For 425656/439521 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 293088 event pairs, 43 based on Foata normal form. 83/24421 useless extension candidates. Maximal degree in co-relation 141275. Up to 14336 conditions per place. [2025-03-14 22:41:36,701 INFO L140 encePairwiseOnDemand]: 174/208 looper letters, 3094 selfloop transitions, 666 changer transitions 680/4546 dead transitions. [2025-03-14 22:41:36,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 938 places, 4546 transitions, 188079 flow [2025-03-14 22:41:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-03-14 22:41:36,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2025-03-14 22:41:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 6511 transitions. [2025-03-14 22:41:36,703 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5691433566433567 [2025-03-14 22:41:36,704 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 731 predicate places. [2025-03-14 22:41:36,704 INFO L471 AbstractCegarLoop]: Abstraction has has 938 places, 4546 transitions, 188079 flow [2025-03-14 22:41:36,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 116.11764705882354) internal successors, (3948), 34 states have internal predecessors, (3948), 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 22:41:36,705 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:36,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:36,711 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 22:41:36,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:36,905 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:41:36,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1789948455, now seen corresponding path program 2 times [2025-03-14 22:41:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435288764] [2025-03-14 22:41:36,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:41:36,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:36,924 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:41:36,924 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:37,091 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 22:41:37,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:37,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435288764] [2025-03-14 22:41:37,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435288764] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:41:37,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195722556] [2025-03-14 22:41:37,091 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:41:37,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:41:37,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:41:37,093 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 22:41:37,095 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 22:41:37,181 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:41:37,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:37,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-14 22:41:37,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:41:37,279 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 19 treesize of output 1 [2025-03-14 22:41:37,781 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 22:41:37,916 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 22:41:37,916 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:41:38,237 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 22:41:38,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195722556] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:41:38,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:41:38,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 11] total 34 [2025-03-14 22:41:38,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220503671] [2025-03-14 22:41:38,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:41:38,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:41:38,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:38,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:41:38,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:41:38,240 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:41:38,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 938 places, 4546 transitions, 188079 flow. Second operand has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:41:38,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:38,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:41:38,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:41:55,736 INFO L124 PetriNetUnfolderBase]: 10114/26189 cut-off events. [2025-03-14 22:41:55,736 INFO L125 PetriNetUnfolderBase]: For 479193/494160 co-relation queries the response was YES. [2025-03-14 22:41:55,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 334211 conditions, 26189 events. 10114/26189 cut-off events. For 479193/494160 co-relation queries the response was YES. Maximal size of possible extension queue 1325. Compared 297422 event pairs, 36 based on Foata normal form. 156/24834 useless extension candidates. Maximal degree in co-relation 152148. Up to 14492 conditions per place. [2025-03-14 22:41:56,237 INFO L140 encePairwiseOnDemand]: 176/208 looper letters, 3435 selfloop transitions, 400 changer transitions 713/4658 dead transitions. [2025-03-14 22:41:56,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1010 places, 4658 transitions, 201956 flow [2025-03-14 22:41:56,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-03-14 22:41:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2025-03-14 22:41:56,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 8775 transitions. [2025-03-14 22:41:56,240 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5779109589041096 [2025-03-14 22:41:56,241 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 803 predicate places. [2025-03-14 22:41:56,241 INFO L471 AbstractCegarLoop]: Abstraction has has 1010 places, 4658 transitions, 201956 flow [2025-03-14 22:41:56,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:41:56,241 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:41:56,242 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:41:56,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-14 22:41:56,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-03-14 22:41:56,442 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:41:56,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:41:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash 2011110031, now seen corresponding path program 3 times [2025-03-14 22:41:56,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:41:56,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986815888] [2025-03-14 22:41:56,443 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:41:56,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:41:56,457 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:41:56,457 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:41:56,646 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 22:41:56,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:41:56,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986815888] [2025-03-14 22:41:56,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986815888] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:41:56,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:41:56,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 22:41:56,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880699345] [2025-03-14 22:41:56,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:41:56,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:41:56,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:41:56,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:41:56,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:41:56,648 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:41:56,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1010 places, 4658 transitions, 201956 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:41:56,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:41:56,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:41:56,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:42:15,338 INFO L124 PetriNetUnfolderBase]: 10174/26237 cut-off events. [2025-03-14 22:42:15,339 INFO L125 PetriNetUnfolderBase]: For 520086/535524 co-relation queries the response was YES. [2025-03-14 22:42:15,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350744 conditions, 26237 events. 10174/26237 cut-off events. For 520086/535524 co-relation queries the response was YES. Maximal size of possible extension queue 1335. Compared 297710 event pairs, 44 based on Foata normal form. 77/24799 useless extension candidates. Maximal degree in co-relation 160507. Up to 14580 conditions per place. [2025-03-14 22:42:15,855 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 3642 selfloop transitions, 204 changer transitions 722/4708 dead transitions. [2025-03-14 22:42:15,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 4708 transitions, 213315 flow [2025-03-14 22:42:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:42:15,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:42:15,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2080 transitions. [2025-03-14 22:42:15,856 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-14 22:42:15,857 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 817 predicate places. [2025-03-14 22:42:15,857 INFO L471 AbstractCegarLoop]: Abstraction has has 1024 places, 4708 transitions, 213315 flow [2025-03-14 22:42:15,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:42:15,857 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:42:15,858 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:42:15,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-14 22:42:15,858 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:42:15,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:42:15,859 INFO L85 PathProgramCache]: Analyzing trace with hash -509052273, now seen corresponding path program 4 times [2025-03-14 22:42:15,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:42:15,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514357759] [2025-03-14 22:42:15,859 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:42:15,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:42:15,872 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:42:15,872 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:16,702 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 22:42:16,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:42:16,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514357759] [2025-03-14 22:42:16,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514357759] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:42:16,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116915639] [2025-03-14 22:42:16,703 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:42:16,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:16,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:42:16,705 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 22:42:16,706 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 22:42:16,781 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:42:16,782 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:16,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 45 conjuncts are in the unsatisfiable core [2025-03-14 22:42:16,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:42:17,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:42:17,209 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 21 treesize of output 15 [2025-03-14 22:42:17,369 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 22:42:17,370 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:42:17,667 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 22:42:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116915639] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:42:17,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:42:17,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20, 11] total 42 [2025-03-14 22:42:17,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759449673] [2025-03-14 22:42:17,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:42:17,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-03-14 22:42:17,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:42:17,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-03-14 22:42:17,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1513, Unknown=0, NotChecked=0, Total=1722 [2025-03-14 22:42:17,670 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:42:17,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 4708 transitions, 213315 flow. Second operand has 42 states, 42 states have (on average 119.19047619047619) internal successors, (5006), 42 states have internal predecessors, (5006), 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 22:42:17,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:42:17,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:42:17,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:42:42,586 INFO L124 PetriNetUnfolderBase]: 10843/28405 cut-off events. [2025-03-14 22:42:42,587 INFO L125 PetriNetUnfolderBase]: For 635132/655450 co-relation queries the response was YES. [2025-03-14 22:42:42,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390101 conditions, 28405 events. 10843/28405 cut-off events. For 635132/655450 co-relation queries the response was YES. Maximal size of possible extension queue 1486. Compared 331003 event pairs, 71 based on Foata normal form. 235/26957 useless extension candidates. Maximal degree in co-relation 179048. Up to 15553 conditions per place. [2025-03-14 22:42:43,200 INFO L140 encePairwiseOnDemand]: 174/208 looper letters, 3494 selfloop transitions, 637 changer transitions 751/4992 dead transitions. [2025-03-14 22:42:43,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1115 places, 4992 transitions, 236289 flow [2025-03-14 22:42:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2025-03-14 22:42:43,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2025-03-14 22:42:43,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 11048 transitions. [2025-03-14 22:42:43,205 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5773411371237458 [2025-03-14 22:42:43,205 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 908 predicate places. [2025-03-14 22:42:43,205 INFO L471 AbstractCegarLoop]: Abstraction has has 1115 places, 4992 transitions, 236289 flow [2025-03-14 22:42:43,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 119.19047619047619) internal successors, (5006), 42 states have internal predecessors, (5006), 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 22:42:43,207 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:42:43,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:42:43,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-14 22:42:43,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:43,407 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:42:43,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:42:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash -730213849, now seen corresponding path program 5 times [2025-03-14 22:42:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:42:43,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532327179] [2025-03-14 22:42:43,409 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:42:43,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:42:43,422 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:42:43,422 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:43,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 22:42:43,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:42:43,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532327179] [2025-03-14 22:42:43,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532327179] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:42:43,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712429878] [2025-03-14 22:42:43,733 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:42:43,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:42:43,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:42:43,735 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 22:42:43,737 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 22:42:43,823 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:42:43,823 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:42:43,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-14 22:42:43,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:42:44,020 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:42:44,020 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 21 treesize of output 15 [2025-03-14 22:42:44,128 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 22:42:44,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:42:44,227 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 22:42:44,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712429878] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:42:44,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:42:44,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 13] total 25 [2025-03-14 22:42:44,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679095734] [2025-03-14 22:42:44,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:42:44,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:42:44,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:42:44,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:42:44,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:42:44,228 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:42:44,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1115 places, 4992 transitions, 236289 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:42:44,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:42:44,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:42:44,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:43:08,194 INFO L124 PetriNetUnfolderBase]: 10900/28446 cut-off events. [2025-03-14 22:43:08,194 INFO L125 PetriNetUnfolderBase]: For 684304/704321 co-relation queries the response was YES. [2025-03-14 22:43:08,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 407887 conditions, 28446 events. 10900/28446 cut-off events. For 684304/704321 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 331287 event pairs, 57 based on Foata normal form. 108/26892 useless extension candidates. Maximal degree in co-relation 186618. Up to 15642 conditions per place. [2025-03-14 22:43:08,974 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 3919 selfloop transitions, 211 changer transitions 761/5031 dead transitions. [2025-03-14 22:43:08,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1129 places, 5031 transitions, 247941 flow [2025-03-14 22:43:08,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:43:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:43:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2079 transitions. [2025-03-14 22:43:08,976 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6663461538461538 [2025-03-14 22:43:08,976 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 922 predicate places. [2025-03-14 22:43:08,976 INFO L471 AbstractCegarLoop]: Abstraction has has 1129 places, 5031 transitions, 247941 flow [2025-03-14 22:43:08,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:43:08,976 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:43:08,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:43:08,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-14 22:43:09,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:43:09,177 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:43:09,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:43:09,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1279014707, now seen corresponding path program 6 times [2025-03-14 22:43:09,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:43:09,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220500834] [2025-03-14 22:43:09,178 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:43:09,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:43:09,194 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:43:09,194 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:43:09,393 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 22:43:09,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:43:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220500834] [2025-03-14 22:43:09,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220500834] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:43:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220845962] [2025-03-14 22:43:09,393 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:43:09,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:43:09,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:43:09,395 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 22:43:09,396 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 22:43:09,481 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:43:09,481 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:43:09,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-14 22:43:09,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:43:09,514 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 19 treesize of output 1 [2025-03-14 22:43:09,775 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 22:43:09,853 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 22:43:09,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:43:10,034 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 22:43:10,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220845962] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:43:10,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:43:10,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 10] total 26 [2025-03-14 22:43:10,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308324366] [2025-03-14 22:43:10,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:43:10,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-14 22:43:10,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:43:10,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-14 22:43:10,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650 [2025-03-14 22:43:10,039 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 208 [2025-03-14 22:43:10,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1129 places, 5031 transitions, 247941 flow. Second operand has 26 states, 26 states have (on average 125.23076923076923) internal successors, (3256), 26 states have internal predecessors, (3256), 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 22:43:10,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:43:10,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 208 [2025-03-14 22:43:10,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:43:39,549 INFO L124 PetriNetUnfolderBase]: 11836/31157 cut-off events. [2025-03-14 22:43:39,550 INFO L125 PetriNetUnfolderBase]: For 809320/832594 co-relation queries the response was YES. [2025-03-14 22:43:39,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461112 conditions, 31157 events. 11836/31157 cut-off events. For 809320/832594 co-relation queries the response was YES. Maximal size of possible extension queue 1635. Compared 369449 event pairs, 65 based on Foata normal form. 194/29531 useless extension candidates. Maximal degree in co-relation 205596. Up to 17023 conditions per place. [2025-03-14 22:43:40,490 INFO L140 encePairwiseOnDemand]: 182/208 looper letters, 3920 selfloop transitions, 687 changer transitions 877/5601 dead transitions. [2025-03-14 22:43:40,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1175 places, 5601 transitions, 287812 flow [2025-03-14 22:43:40,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2025-03-14 22:43:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2025-03-14 22:43:40,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 6032 transitions. [2025-03-14 22:43:40,494 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6170212765957447 [2025-03-14 22:43:40,495 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 968 predicate places. [2025-03-14 22:43:40,495 INFO L471 AbstractCegarLoop]: Abstraction has has 1175 places, 5601 transitions, 287812 flow [2025-03-14 22:43:40,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 125.23076923076923) internal successors, (3256), 26 states have internal predecessors, (3256), 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 22:43:40,496 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:43:40,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:43:40,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-14 22:43:40,696 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,SelfDestructingSolverStorable24 [2025-03-14 22:43:40,696 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:43:40,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:43:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1620488751, now seen corresponding path program 1 times [2025-03-14 22:43:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:43:40,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375905348] [2025-03-14 22:43:40,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:43:40,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:43:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:43:41,357 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:43:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:43:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375905348] [2025-03-14 22:43:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375905348] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:43:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931841782] [2025-03-14 22:43:41,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 22:43:41,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:43:41,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:43:41,359 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 22:43:41,361 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 22:43:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:43:41,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-14 22:43:41,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:43:41,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:43:41,760 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 21 treesize of output 15 [2025-03-14 22:43:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-14 22:43:41,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:43:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-14 22:43:41,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931841782] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:43:41,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:43:41,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 11] total 33 [2025-03-14 22:43:41,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981563653] [2025-03-14 22:43:41,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:43:41,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-14 22:43:41,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:43:41,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-14 22:43:41,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=953, Unknown=0, NotChecked=0, Total=1056 [2025-03-14 22:43:41,954 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 208 [2025-03-14 22:43:41,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1175 places, 5601 transitions, 287812 flow. Second operand has 33 states, 33 states have (on average 116.15151515151516) internal successors, (3833), 33 states have internal predecessors, (3833), 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 22:43:41,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:43:41,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 208 [2025-03-14 22:43:41,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:44:14,876 INFO L124 PetriNetUnfolderBase]: 12118/31969 cut-off events. [2025-03-14 22:44:14,876 INFO L125 PetriNetUnfolderBase]: For 901582/926549 co-relation queries the response was YES. [2025-03-14 22:44:14,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489998 conditions, 31969 events. 12118/31969 cut-off events. For 901582/926549 co-relation queries the response was YES. Maximal size of possible extension queue 1685. Compared 380760 event pairs, 52 based on Foata normal form. 174/30260 useless extension candidates. Maximal degree in co-relation 218404. Up to 17443 conditions per place. [2025-03-14 22:44:15,625 INFO L140 encePairwiseOnDemand]: 174/208 looper letters, 4382 selfloop transitions, 486 changer transitions 907/5881 dead transitions. [2025-03-14 22:44:15,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1217 places, 5881 transitions, 314089 flow [2025-03-14 22:44:15,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2025-03-14 22:44:15,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2025-03-14 22:44:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 5061 transitions. [2025-03-14 22:44:15,627 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5658542039355993 [2025-03-14 22:44:15,628 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1010 predicate places. [2025-03-14 22:44:15,628 INFO L471 AbstractCegarLoop]: Abstraction has has 1217 places, 5881 transitions, 314089 flow [2025-03-14 22:44:15,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 116.15151515151516) internal successors, (3833), 33 states have internal predecessors, (3833), 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 22:44:15,628 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:44:15,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:44:15,635 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 22:44:15,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-14 22:44:15,829 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:44:15,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:44:15,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1541664253, now seen corresponding path program 2 times [2025-03-14 22:44:15,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:44:15,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479466847] [2025-03-14 22:44:15,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:44:15,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:44:15,842 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:44:15,842 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:15,989 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 22:44:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:44:15,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479466847] [2025-03-14 22:44:15,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479466847] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:44:15,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780415791] [2025-03-14 22:44:15,989 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:44:15,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:44:15,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:44:15,991 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 22:44:15,992 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 22:44:16,075 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:44:16,075 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:16,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 57 conjuncts are in the unsatisfiable core [2025-03-14 22:44:16,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:44:16,165 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 19 treesize of output 1 [2025-03-14 22:44:16,653 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 22:44:16,783 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 22:44:16,783 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:44:17,169 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 22:44:17,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780415791] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:44:17,169 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:44:17,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20, 11] total 34 [2025-03-14 22:44:17,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877360863] [2025-03-14 22:44:17,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:44:17,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-14 22:44:17,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:44:17,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-14 22:44:17,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2025-03-14 22:44:17,171 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 208 [2025-03-14 22:44:17,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1217 places, 5881 transitions, 314089 flow. Second operand has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:44:17,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:44:17,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 208 [2025-03-14 22:44:17,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:44:57,105 INFO L124 PetriNetUnfolderBase]: 12200/32287 cut-off events. [2025-03-14 22:44:57,105 INFO L125 PetriNetUnfolderBase]: For 989526/1015097 co-relation queries the response was YES. [2025-03-14 22:44:57,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 511089 conditions, 32287 events. 12200/32287 cut-off events. For 989526/1015097 co-relation queries the response was YES. Maximal size of possible extension queue 1692. Compared 385410 event pairs, 44 based on Foata normal form. 143/30527 useless extension candidates. Maximal degree in co-relation 230742. Up to 17563 conditions per place. [2025-03-14 22:44:57,901 INFO L140 encePairwiseOnDemand]: 176/208 looper letters, 4503 selfloop transitions, 441 changer transitions 931/5985 dead transitions. [2025-03-14 22:44:57,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1292 places, 5985 transitions, 331529 flow [2025-03-14 22:44:57,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2025-03-14 22:44:57,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2025-03-14 22:44:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 9119 transitions. [2025-03-14 22:44:57,905 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5768598178137652 [2025-03-14 22:44:57,906 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1085 predicate places. [2025-03-14 22:44:57,906 INFO L471 AbstractCegarLoop]: Abstraction has has 1292 places, 5985 transitions, 331529 flow [2025-03-14 22:44:57,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 119.23529411764706) internal successors, (4054), 34 states have internal predecessors, (4054), 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 22:44:57,906 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:44:57,907 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:44:57,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-14 22:44:58,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-14 22:44:58,107 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:44:58,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:44:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2084136273, now seen corresponding path program 3 times [2025-03-14 22:44:58,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:44:58,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040393609] [2025-03-14 22:44:58,108 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:44:58,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:44:58,121 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-14 22:44:58,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:44:58,294 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 22:44:58,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:44:58,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040393609] [2025-03-14 22:44:58,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040393609] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:44:58,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:44:58,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-14 22:44:58,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092553493] [2025-03-14 22:44:58,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:44:58,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:44:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:44:58,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:44:58,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-14 22:44:58,295 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 208 [2025-03-14 22:44:58,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1292 places, 5985 transitions, 331529 flow. Second operand has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:44:58,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:44:58,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 208 [2025-03-14 22:44:58,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:45:35,569 INFO L124 PetriNetUnfolderBase]: 12236/32326 cut-off events. [2025-03-14 22:45:35,569 INFO L125 PetriNetUnfolderBase]: For 1063371/1090510 co-relation queries the response was YES. [2025-03-14 22:45:35,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 530279 conditions, 32326 events. 12236/32326 cut-off events. For 1063371/1090510 co-relation queries the response was YES. Maximal size of possible extension queue 1700. Compared 385939 event pairs, 48 based on Foata normal form. 128/30558 useless extension candidates. Maximal degree in co-relation 239686. Up to 17618 conditions per place. [2025-03-14 22:45:36,504 INFO L140 encePairwiseOnDemand]: 189/208 looper letters, 4682 selfloop transitions, 253 changer transitions 940/6015 dead transitions. [2025-03-14 22:45:36,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1306 places, 6015 transitions, 344955 flow [2025-03-14 22:45:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-14 22:45:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-03-14 22:45:36,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2078 transitions. [2025-03-14 22:45:36,506 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.666025641025641 [2025-03-14 22:45:36,506 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1099 predicate places. [2025-03-14 22:45:36,506 INFO L471 AbstractCegarLoop]: Abstraction has has 1306 places, 6015 transitions, 344955 flow [2025-03-14 22:45:36,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 135.36363636363637) internal successors, (1489), 11 states have internal predecessors, (1489), 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 22:45:36,507 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:45:36,507 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:45:36,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-14 22:45:36,507 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:45:36,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:45:36,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1282131773, now seen corresponding path program 4 times [2025-03-14 22:45:36,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:45:36,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129140402] [2025-03-14 22:45:36,508 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:45:36,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:45:36,522 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:45:36,522 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:37,434 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 22:45:37,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:45:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129140402] [2025-03-14 22:45:37,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129140402] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:45:37,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892810324] [2025-03-14 22:45:37,435 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:45:37,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:45:37,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:45:37,437 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 22:45:37,438 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 22:45:37,527 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:45:37,528 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:45:37,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 46 conjuncts are in the unsatisfiable core [2025-03-14 22:45:37,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:45:38,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:45:38,068 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 21 treesize of output 15 [2025-03-14 22:45:38,265 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 22:45:38,265 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:45:38,708 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 22:45:38,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892810324] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-14 22:45:38,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-14 22:45:38,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [26, 20] total 47 [2025-03-14 22:45:38,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130502095] [2025-03-14 22:45:38,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:45:38,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-14 22:45:38,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:45:38,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-14 22:45:38,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1978, Unknown=0, NotChecked=0, Total=2162 [2025-03-14 22:45:38,710 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 208 [2025-03-14 22:45:38,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1306 places, 6015 transitions, 344955 flow. Second operand has 11 states, 11 states have (on average 132.63636363636363) internal successors, (1459), 11 states have internal predecessors, (1459), 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 22:45:38,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:45:38,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 208 [2025-03-14 22:45:38,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:46:19,208 INFO L124 PetriNetUnfolderBase]: 12260/32378 cut-off events. [2025-03-14 22:46:19,208 INFO L125 PetriNetUnfolderBase]: For 1140622/1169830 co-relation queries the response was YES. [2025-03-14 22:46:19,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549272 conditions, 32378 events. 12260/32378 cut-off events. For 1140622/1169830 co-relation queries the response was YES. Maximal size of possible extension queue 1707. Compared 386739 event pairs, 59 based on Foata normal form. 98/30578 useless extension candidates. Maximal degree in co-relation 248255. Up to 17662 conditions per place. [2025-03-14 22:46:20,046 INFO L140 encePairwiseOnDemand]: 191/208 looper letters, 4860 selfloop transitions, 97 changer transitions 950/6044 dead transitions. [2025-03-14 22:46:20,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1319 places, 6044 transitions, 358440 flow [2025-03-14 22:46:20,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:46:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:46:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1894 transitions. [2025-03-14 22:46:20,048 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6504120879120879 [2025-03-14 22:46:20,049 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1112 predicate places. [2025-03-14 22:46:20,049 INFO L471 AbstractCegarLoop]: Abstraction has has 1319 places, 6044 transitions, 358440 flow [2025-03-14 22:46:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 132.63636363636363) internal successors, (1459), 11 states have internal predecessors, (1459), 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 22:46:20,049 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:46:20,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:46:20,057 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 22:46:20,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-14 22:46:20,250 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:46:20,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:46:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1933905497, now seen corresponding path program 5 times [2025-03-14 22:46:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:46:20,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951973463] [2025-03-14 22:46:20,251 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:46:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:46:20,265 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:46:20,265 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:46:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-14 22:46:20,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:46:20,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951973463] [2025-03-14 22:46:20,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951973463] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:46:20,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653781494] [2025-03-14 22:46:20,543 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:46:20,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:46:20,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:46:20,545 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 22:46:20,546 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 22:46:20,626 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-03-14 22:46:20,627 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:46:20,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-14 22:46:20,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:46:20,673 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 22:46:20,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:46:20,958 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 17 treesize of output 15 [2025-03-14 22:46:21,052 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 22:46:21,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:46:21,143 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 22:46:21,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653781494] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:46:21,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:46:21,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19, 11] total 27 [2025-03-14 22:46:21,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629445560] [2025-03-14 22:46:21,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:46:21,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-14 22:46:21,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:46:21,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-14 22:46:21,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2025-03-14 22:46:21,145 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 208 [2025-03-14 22:46:21,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1319 places, 6044 transitions, 358440 flow. Second operand has 27 states, 27 states have (on average 116.51851851851852) internal successors, (3146), 27 states have internal predecessors, (3146), 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 22:46:21,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:46:21,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 208 [2025-03-14 22:46:21,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:47:04,619 INFO L124 PetriNetUnfolderBase]: 12346/32833 cut-off events. [2025-03-14 22:47:04,620 INFO L125 PetriNetUnfolderBase]: For 1251457/1282455 co-relation queries the response was YES. [2025-03-14 22:47:04,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571293 conditions, 32833 events. 12346/32833 cut-off events. For 1251457/1282455 co-relation queries the response was YES. Maximal size of possible extension queue 1736. Compared 394524 event pairs, 56 based on Foata normal form. 153/31047 useless extension candidates. Maximal degree in co-relation 259415. Up to 17789 conditions per place. [2025-03-14 22:47:05,470 INFO L140 encePairwiseOnDemand]: 174/208 looper letters, 4689 selfloop transitions, 396 changer transitions 960/6151 dead transitions. [2025-03-14 22:47:05,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1355 places, 6151 transitions, 376969 flow [2025-03-14 22:47:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-14 22:47:05,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-03-14 22:47:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 4348 transitions. [2025-03-14 22:47:05,472 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.564968814968815 [2025-03-14 22:47:05,473 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1148 predicate places. [2025-03-14 22:47:05,473 INFO L471 AbstractCegarLoop]: Abstraction has has 1355 places, 6151 transitions, 376969 flow [2025-03-14 22:47:05,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 116.51851851851852) internal successors, (3146), 27 states have internal predecessors, (3146), 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 22:47:05,473 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:47:05,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:47:05,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-14 22:47:05,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:05,674 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:47:05,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:47:05,675 INFO L85 PathProgramCache]: Analyzing trace with hash -714662865, now seen corresponding path program 6 times [2025-03-14 22:47:05,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:47:05,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090968547] [2025-03-14 22:47:05,675 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:47:05,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:47:05,691 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:47:05,692 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:47:05,873 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 22:47:05,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:47:05,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090968547] [2025-03-14 22:47:05,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090968547] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:47:05,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214723081] [2025-03-14 22:47:05,874 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:47:05,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:05,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:47:05,876 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 22:47:05,877 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 22:47:05,965 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-14 22:47:05,965 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:47:05,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-03-14 22:47:05,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:47:05,998 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 19 treesize of output 1 [2025-03-14 22:47:06,250 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 22:47:06,362 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 22:47:06,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:47:06,536 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 22:47:06,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214723081] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:47:06,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:47:06,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 10] total 25 [2025-03-14 22:47:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645549447] [2025-03-14 22:47:06,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:47:06,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 22:47:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:47:06,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 22:47:06,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2025-03-14 22:47:06,539 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 208 [2025-03-14 22:47:06,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1355 places, 6151 transitions, 376969 flow. Second operand has 25 states, 25 states have (on average 125.36) internal successors, (3134), 25 states have internal predecessors, (3134), 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 22:47:06,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:47:06,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 208 [2025-03-14 22:47:06,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:47:51,746 INFO L124 PetriNetUnfolderBase]: 13058/34338 cut-off events. [2025-03-14 22:47:51,747 INFO L125 PetriNetUnfolderBase]: For 1385413/1419487 co-relation queries the response was YES. [2025-03-14 22:47:51,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622544 conditions, 34338 events. 13058/34338 cut-off events. For 1385413/1419487 co-relation queries the response was YES. Maximal size of possible extension queue 1827. Compared 412694 event pairs, 50 based on Foata normal form. 171/32522 useless extension candidates. Maximal degree in co-relation 284369. Up to 18814 conditions per place. [2025-03-14 22:47:52,853 INFO L140 encePairwiseOnDemand]: 182/208 looper letters, 4868 selfloop transitions, 575 changer transitions 1012/6572 dead transitions. [2025-03-14 22:47:52,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1393 places, 6572 transitions, 416238 flow [2025-03-14 22:47:52,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-14 22:47:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2025-03-14 22:47:52,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 5002 transitions. [2025-03-14 22:47:52,855 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6166173570019724 [2025-03-14 22:47:52,856 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1186 predicate places. [2025-03-14 22:47:52,856 INFO L471 AbstractCegarLoop]: Abstraction has has 1393 places, 6572 transitions, 416238 flow [2025-03-14 22:47:52,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 125.36) internal successors, (3134), 25 states have internal predecessors, (3134), 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 22:47:52,856 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:47:52,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:47:52,863 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 22:47:53,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:53,061 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:47:53,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:47:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash 825525350, now seen corresponding path program 7 times [2025-03-14 22:47:53,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:47:53,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630438715] [2025-03-14 22:47:53,062 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:47:53,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:47:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:47:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:47:53,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:47:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630438715] [2025-03-14 22:47:53,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630438715] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:47:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390639533] [2025-03-14 22:47:53,238 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 22:47:53,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:47:53,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:47:53,240 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 22:47:53,241 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 22:47:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 22:47:53,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-14 22:47:53,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:47:53,528 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:47:53,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:47:53,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:47:53,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390639533] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:47:53,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:47:53,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 32 [2025-03-14 22:47:53,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396250861] [2025-03-14 22:47:53,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:47:53,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-14 22:47:53,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:47:53,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-14 22:47:53,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=808, Unknown=0, NotChecked=0, Total=992 [2025-03-14 22:47:53,734 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 208 [2025-03-14 22:47:53,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1393 places, 6572 transitions, 416238 flow. Second operand has 32 states, 32 states have (on average 127.0625) internal successors, (4066), 32 states have internal predecessors, (4066), 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 22:47:53,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:47:53,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 208 [2025-03-14 22:47:53,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:48:29,518 INFO L124 PetriNetUnfolderBase]: 8274/23726 cut-off events. [2025-03-14 22:48:29,518 INFO L125 PetriNetUnfolderBase]: For 1084782/1114291 co-relation queries the response was YES. [2025-03-14 22:48:29,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 423326 conditions, 23726 events. 8274/23726 cut-off events. For 1084782/1114291 co-relation queries the response was YES. Maximal size of possible extension queue 1278. Compared 281175 event pairs, 30 based on Foata normal form. 698/22977 useless extension candidates. Maximal degree in co-relation 292817. Up to 12359 conditions per place. [2025-03-14 22:48:30,088 INFO L140 encePairwiseOnDemand]: 180/208 looper letters, 3637 selfloop transitions, 69 changer transitions 839/4664 dead transitions. [2025-03-14 22:48:30,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1394 places, 4664 transitions, 302327 flow [2025-03-14 22:48:30,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-14 22:48:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-03-14 22:48:30,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3834 transitions. [2025-03-14 22:48:30,090 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.614423076923077 [2025-03-14 22:48:30,090 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1187 predicate places. [2025-03-14 22:48:30,091 INFO L471 AbstractCegarLoop]: Abstraction has has 1394 places, 4664 transitions, 302327 flow [2025-03-14 22:48:30,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 127.0625) internal successors, (4066), 32 states have internal predecessors, (4066), 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 22:48:30,091 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:48:30,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 22:48:30,098 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 22:48:30,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:48:30,292 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:48:30,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:48:30,293 INFO L85 PathProgramCache]: Analyzing trace with hash 607627264, now seen corresponding path program 8 times [2025-03-14 22:48:30,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:48:30,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056110638] [2025-03-14 22:48:30,293 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:48:30,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:48:30,306 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:48:30,306 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:48:30,419 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 22:48:30,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:48:30,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056110638] [2025-03-14 22:48:30,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056110638] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:48:30,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371407871] [2025-03-14 22:48:30,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 22:48:30,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:48:30,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:48:30,421 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 22:48:30,422 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 22:48:30,504 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 22:48:30,505 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:48:30,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-14 22:48:30,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:48:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:48:30,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:48:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:48:30,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371407871] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:48:30,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:48:30,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 32 [2025-03-14 22:48:30,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964892896] [2025-03-14 22:48:30,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:48:30,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-14 22:48:30,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:48:30,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-14 22:48:30,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2025-03-14 22:48:30,949 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 208 [2025-03-14 22:48:30,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1394 places, 4664 transitions, 302327 flow. Second operand has 32 states, 32 states have (on average 132.125) internal successors, (4228), 32 states have internal predecessors, (4228), 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 22:48:30,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:48:30,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 208 [2025-03-14 22:48:30,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:48:58,908 INFO L124 PetriNetUnfolderBase]: 9345/25992 cut-off events. [2025-03-14 22:48:58,908 INFO L125 PetriNetUnfolderBase]: For 1263964/1296556 co-relation queries the response was YES. [2025-03-14 22:48:58,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477194 conditions, 25992 events. 9345/25992 cut-off events. For 1263964/1296556 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 307669 event pairs, 98 based on Foata normal form. 343/24680 useless extension candidates. Maximal degree in co-relation 419058. Up to 13542 conditions per place. [2025-03-14 22:48:59,700 INFO L140 encePairwiseOnDemand]: 178/208 looper letters, 2797 selfloop transitions, 1024 changer transitions 1076/5016 dead transitions. [2025-03-14 22:48:59,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1400 places, 5016 transitions, 335173 flow [2025-03-14 22:48:59,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-14 22:48:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2025-03-14 22:48:59,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 7077 transitions. [2025-03-14 22:48:59,702 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6300747863247863 [2025-03-14 22:48:59,703 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1193 predicate places. [2025-03-14 22:48:59,703 INFO L471 AbstractCegarLoop]: Abstraction has has 1400 places, 5016 transitions, 335173 flow [2025-03-14 22:48:59,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 132.125) internal successors, (4228), 32 states have internal predecessors, (4228), 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 22:48:59,703 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:48:59,703 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2025-03-14 22:48:59,710 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 22:48:59,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:48:59,904 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:48:59,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:48:59,905 INFO L85 PathProgramCache]: Analyzing trace with hash -662076863, now seen corresponding path program 9 times [2025-03-14 22:48:59,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:48:59,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467793950] [2025-03-14 22:48:59,905 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 22:48:59,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:48:59,918 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-14 22:48:59,918 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:49:00,025 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-14 22:49:00,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:49:00,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467793950] [2025-03-14 22:49:00,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467793950] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 22:49:00,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 22:49:00,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-14 22:49:00,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865721811] [2025-03-14 22:49:00,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 22:49:00,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-14 22:49:00,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:49:00,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-14 22:49:00,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-14 22:49:00,027 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 208 [2025-03-14 22:49:00,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1400 places, 5016 transitions, 335173 flow. Second operand has 9 states, 9 states have (on average 148.22222222222223) internal successors, (1334), 9 states have internal predecessors, (1334), 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 22:49:00,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:49:00,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 208 [2025-03-14 22:49:00,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:49:34,952 INFO L124 PetriNetUnfolderBase]: 10626/28894 cut-off events. [2025-03-14 22:49:34,952 INFO L125 PetriNetUnfolderBase]: For 1418526/1451279 co-relation queries the response was YES. [2025-03-14 22:49:35,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552087 conditions, 28894 events. 10626/28894 cut-off events. For 1418526/1451279 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 344765 event pairs, 113 based on Foata normal form. 75/27167 useless extension candidates. Maximal degree in co-relation 490881. Up to 15252 conditions per place. [2025-03-14 22:49:35,751 INFO L140 encePairwiseOnDemand]: 193/208 looper letters, 3322 selfloop transitions, 735 changer transitions 1091/5297 dead transitions. [2025-03-14 22:49:35,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1413 places, 5297 transitions, 364594 flow [2025-03-14 22:49:35,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-14 22:49:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-14 22:49:35,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2115 transitions. [2025-03-14 22:49:35,753 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.726304945054945 [2025-03-14 22:49:35,753 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1206 predicate places. [2025-03-14 22:49:35,753 INFO L471 AbstractCegarLoop]: Abstraction has has 1413 places, 5297 transitions, 364594 flow [2025-03-14 22:49:35,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 148.22222222222223) internal successors, (1334), 9 states have internal predecessors, (1334), 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 22:49:35,754 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:49:35,754 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2025-03-14 22:49:35,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-14 22:49:35,754 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:49:35,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:49:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash -637112467, now seen corresponding path program 10 times [2025-03-14 22:49:35,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:49:35,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186793463] [2025-03-14 22:49:35,755 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:49:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:49:35,768 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:49:35,768 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:49:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-14 22:49:35,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:49:35,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186793463] [2025-03-14 22:49:35,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186793463] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:49:35,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117394842] [2025-03-14 22:49:35,958 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 22:49:35,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:49:35,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:49:35,960 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 22:49:35,960 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 22:49:36,034 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 22:49:36,034 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:49:36,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-14 22:49:36,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:49:36,235 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-14 22:49:36,235 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:49:36,346 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-14 22:49:36,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117394842] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:49:36,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:49:36,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 9] total 27 [2025-03-14 22:49:36,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866934862] [2025-03-14 22:49:36,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:49:36,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-14 22:49:36,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:49:36,348 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-14 22:49:36,348 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2025-03-14 22:49:36,349 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 208 [2025-03-14 22:49:36,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1413 places, 5297 transitions, 364594 flow. Second operand has 27 states, 27 states have (on average 132.1851851851852) internal successors, (3569), 27 states have internal predecessors, (3569), 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 22:49:36,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:49:36,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 208 [2025-03-14 22:49:36,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:50:34,022 INFO L124 PetriNetUnfolderBase]: 16124/42656 cut-off events. [2025-03-14 22:50:34,022 INFO L125 PetriNetUnfolderBase]: For 2163749/2205302 co-relation queries the response was YES. [2025-03-14 22:50:34,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843014 conditions, 42656 events. 16124/42656 cut-off events. For 2163749/2205302 co-relation queries the response was YES. Maximal size of possible extension queue 2121. Compared 528186 event pairs, 96 based on Foata normal form. 130/40153 useless extension candidates. Maximal degree in co-relation 768606. Up to 22694 conditions per place. [2025-03-14 22:50:35,576 INFO L140 encePairwiseOnDemand]: 181/208 looper letters, 3577 selfloop transitions, 1598 changer transitions 1230/6524 dead transitions. [2025-03-14 22:50:35,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1483 places, 6524 transitions, 463905 flow [2025-03-14 22:50:35,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-03-14 22:50:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2025-03-14 22:50:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 9340 transitions. [2025-03-14 22:50:35,579 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6324485373781148 [2025-03-14 22:50:35,579 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1276 predicate places. [2025-03-14 22:50:35,580 INFO L471 AbstractCegarLoop]: Abstraction has has 1483 places, 6524 transitions, 463905 flow [2025-03-14 22:50:35,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 132.1851851851852) internal successors, (3569), 27 states have internal predecessors, (3569), 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 22:50:35,580 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:50:35,580 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1] [2025-03-14 22:50:35,586 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 22:50:35,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:50:35,781 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:50:35,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:50:35,782 INFO L85 PathProgramCache]: Analyzing trace with hash -350166223, now seen corresponding path program 11 times [2025-03-14 22:50:35,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:50:35,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332253700] [2025-03-14 22:50:35,782 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:50:35,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:50:35,797 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-03-14 22:50:35,797 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:50:36,156 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-14 22:50:36,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:50:36,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332253700] [2025-03-14 22:50:36,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332253700] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:50:36,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535234962] [2025-03-14 22:50:36,157 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 22:50:36,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:50:36,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:50:36,159 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 22:50:36,160 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 22:50:36,242 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-03-14 22:50:36,242 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:50:36,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-14 22:50:36,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:50:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-14 22:50:36,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:50:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-14 22:50:36,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535234962] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:50:36,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:50:36,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 9] total 31 [2025-03-14 22:50:36,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823288364] [2025-03-14 22:50:36,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:50:36,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-03-14 22:50:36,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:50:36,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-03-14 22:50:36,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=823, Unknown=0, NotChecked=0, Total=930 [2025-03-14 22:50:36,558 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 208 [2025-03-14 22:50:36,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1483 places, 6524 transitions, 463905 flow. Second operand has 31 states, 31 states have (on average 124.90322580645162) internal successors, (3872), 31 states have internal predecessors, (3872), 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 22:50:36,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:50:36,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 208 [2025-03-14 22:50:36,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 22:52:03,907 INFO L124 PetriNetUnfolderBase]: 21921/57390 cut-off events. [2025-03-14 22:52:03,907 INFO L125 PetriNetUnfolderBase]: For 2998621/3044346 co-relation queries the response was YES. [2025-03-14 22:52:04,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1165568 conditions, 57390 events. 21921/57390 cut-off events. For 2998621/3044346 co-relation queries the response was YES. Maximal size of possible extension queue 2723. Compared 739005 event pairs, 102 based on Foata normal form. 111/54034 useless extension candidates. Maximal degree in co-relation 1075605. Up to 30572 conditions per place. [2025-03-14 22:52:06,192 INFO L140 encePairwiseOnDemand]: 178/208 looper letters, 4932 selfloop transitions, 926 changer transitions 1553/7523 dead transitions. [2025-03-14 22:52:06,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1564 places, 7523 transitions, 551191 flow [2025-03-14 22:52:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2025-03-14 22:52:06,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2025-03-14 22:52:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 10219 transitions. [2025-03-14 22:52:06,201 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.5991439962476548 [2025-03-14 22:52:06,201 INFO L298 CegarLoopForPetriNet]: 207 programPoint places, 1357 predicate places. [2025-03-14 22:52:06,202 INFO L471 AbstractCegarLoop]: Abstraction has has 1564 places, 7523 transitions, 551191 flow [2025-03-14 22:52:06,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 124.90322580645162) internal successors, (3872), 31 states have internal predecessors, (3872), 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 22:52:06,202 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 22:52:06,202 INFO L221 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2025-03-14 22:52:06,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-14 22:52:06,403 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,SelfDestructingSolverStorable35 [2025-03-14 22:52:06,403 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-14 22:52:06,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 22:52:06,404 INFO L85 PathProgramCache]: Analyzing trace with hash -834645192, now seen corresponding path program 12 times [2025-03-14 22:52:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 22:52:06,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037765676] [2025-03-14 22:52:06,404 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:52:06,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 22:52:06,444 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-03-14 22:52:06,445 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:52:08,287 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:52:08,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 22:52:08,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037765676] [2025-03-14 22:52:08,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037765676] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 22:52:08,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869159102] [2025-03-14 22:52:08,288 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 22:52:08,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 22:52:08,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 22:52:08,290 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 22:52:08,291 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 22:52:08,392 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-03-14 22:52:08,392 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 22:52:08,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-03-14 22:52:08,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 22:52:09,623 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-14 22:52:09,623 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 36 treesize of output 12 [2025-03-14 22:52:09,770 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 22:52:09,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 22:52:10,378 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-14 22:52:10,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869159102] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 22:52:10,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 22:52:10,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 26, 15] total 63 [2025-03-14 22:52:10,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985040608] [2025-03-14 22:52:10,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 22:52:10,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-03-14 22:52:10,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 22:52:10,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-03-14 22:52:10,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=3563, Unknown=0, NotChecked=0, Total=3906 [2025-03-14 22:52:10,382 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 208 [2025-03-14 22:52:10,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1564 places, 7523 transitions, 551191 flow. Second operand has 63 states, 63 states have (on average 110.46031746031746) internal successors, (6959), 63 states have internal predecessors, (6959), 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 22:52:10,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 22:52:10,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 208 [2025-03-14 22:52:10,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2025-03-14 22:52:32,716 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 22:52:32,717 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-14 22:52:32,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2025-03-14 22:52:32,744 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-03-14 22:52:32,751 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 22:52:32,945 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,SelfDestructingSolverStorable36 [2025-03-14 22:52:32,945 WARN L596 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (63states, 107/208 universal loopers) in iteration 37,while PetriNetUnfolder was constructing finite prefix that currently has 158744 conditions, 7785 events (2397/7784 cut-off events. For 303723/311367 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 98629 event pairs, 13 based on Foata normal form. 76/9396 useless extension candidates. Maximal degree in co-relation 116883. Up to 3980 conditions per place.). [2025-03-14 22:52:32,949 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-03-14 22:52:32,949 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-14 22:52:32,949 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-14 22:52:32,950 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-14 22:52:32,950 INFO L422 BasicCegarLoop]: Path program histogram: [12, 6, 6, 6, 2, 1, 1, 1, 1, 1] [2025-03-14 22:52:32,959 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 22:52:32,960 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 22:52:32,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 10:52:32 BasicIcfg [2025-03-14 22:52:32,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 22:52:32,964 INFO L158 Benchmark]: Toolchain (without parser) took 789944.12ms. Allocated memory was 71.3MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 43.9MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2025-03-14 22:52:32,964 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 71.3MB. Free memory is still 35.1MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 22:52:32,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.16ms. Allocated memory is still 71.3MB. Free memory was 43.8MB in the beginning and 31.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-14 22:52:32,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.25ms. Allocated memory is still 71.3MB. Free memory was 31.1MB in the beginning and 28.8MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-14 22:52:32,965 INFO L158 Benchmark]: Boogie Preprocessor took 23.72ms. Allocated memory is still 71.3MB. Free memory was 28.8MB in the beginning and 27.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 22:52:32,965 INFO L158 Benchmark]: RCFGBuilder took 604.73ms. Allocated memory is still 71.3MB. Free memory was 27.1MB in the beginning and 32.9MB in the end (delta: -5.9MB). Peak memory consumption was 18.2MB. Max. memory is 8.0GB. [2025-03-14 22:52:32,965 INFO L158 Benchmark]: TraceAbstraction took 789057.70ms. Allocated memory was 71.3MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 31.7MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2025-03-14 22:52:32,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 71.3MB. Free memory is still 35.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 218.16ms. Allocated memory is still 71.3MB. Free memory was 43.8MB in the beginning and 31.1MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.25ms. Allocated memory is still 71.3MB. Free memory was 31.1MB in the beginning and 28.8MB in the end (delta: 2.3MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.72ms. Allocated memory is still 71.3MB. Free memory was 28.8MB in the beginning and 27.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 604.73ms. Allocated memory is still 71.3MB. Free memory was 27.1MB in the beginning and 32.9MB in the end (delta: -5.9MB). Peak memory consumption was 18.2MB. Max. memory is 8.0GB. * TraceAbstraction took 789057.70ms. Allocated memory was 71.3MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 31.7MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (63states, 107/208 universal loopers) in iteration 37,while PetriNetUnfolder was constructing finite prefix that currently has 158744 conditions, 7785 events (2397/7784 cut-off events. For 303723/311367 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 98629 event pairs, 13 based on Foata normal form. 76/9396 useless extension candidates. Maximal degree in co-relation 116883. Up to 3980 conditions per place.). - TimeoutResultAtElement [Line: 127]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (63states, 107/208 universal loopers) in iteration 37,while PetriNetUnfolder was constructing finite prefix that currently has 158744 conditions, 7785 events (2397/7784 cut-off events. For 303723/311367 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 98629 event pairs, 13 based on Foata normal form. 76/9396 useless extension candidates. Maximal degree in co-relation 116883. Up to 3980 conditions per place.). - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (63states, 107/208 universal loopers) in iteration 37,while PetriNetUnfolder was constructing finite prefix that currently has 158744 conditions, 7785 events (2397/7784 cut-off events. For 303723/311367 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 98629 event pairs, 13 based on Foata normal form. 76/9396 useless extension candidates. Maximal degree in co-relation 116883. Up to 3980 conditions per place.). - TimeoutResultAtElement [Line: 126]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (63states, 107/208 universal loopers) in iteration 37,while PetriNetUnfolder was constructing finite prefix that currently has 158744 conditions, 7785 events (2397/7784 cut-off events. For 303723/311367 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 98629 event pairs, 13 based on Foata normal form. 76/9396 useless extension candidates. Maximal degree in co-relation 116883. Up to 3980 conditions per place.). - TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (63states, 107/208 universal loopers) in iteration 37,while PetriNetUnfolder was constructing finite prefix that currently has 158744 conditions, 7785 events (2397/7784 cut-off events. For 303723/311367 co-relation queries the response was YES. Maximal size of possible extension queue 2060. Compared 98629 event pairs, 13 based on Foata normal form. 76/9396 useless extension candidates. Maximal degree in co-relation 116883. Up to 3980 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 243 locations, 5 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: 788.9s, OverallIterations: 37, TraceHistogramMax: 3, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 744.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9973 SdHoareTripleChecker+Valid, 18.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9973 mSDsluCounter, 20248 SdHoareTripleChecker+Invalid, 15.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18325 mSDsCounter, 1929 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49452 IncrementalHoareTripleChecker+Invalid, 51381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1929 mSolverCounterUnsat, 1923 mSDtfsCounter, 49452 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11648 GetRequests, 9505 SyntacticMatches, 7 SemanticMatches, 2136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56115 ImplicationChecksByTransitivity, 28.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=551191occurred in iteration=36, InterpolantAutomatonStates: 1483, 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: 0.5s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 35.8s InterpolantComputationTime, 11875 NumberOfCodeBlocks, 11725 NumberOfCodeBlocksAsserted, 124 NumberOfCheckSat, 16740 ConstructedInterpolants, 0 QuantifiedInterpolants, 90826 SizeOfPredicates, 602 NumberOfNonLiveVariables, 10519 ConjunctsInSsa, 1022 ConjunctsInUnsatCore, 89 InterpolantComputations, 15 PerfectInterpolantSequences, 600/1269 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