/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/pthread/triangular-longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-14 21:33:01,522 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 21:33:01,601 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 21:33:01,638 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 21:33:01,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 21:33:01,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 21:33:01,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 21:33:01,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 21:33:01,644 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 21:33:01,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 21:33:01,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 21:33:01,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 21:33:01,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 21:33:01,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 21:33:01,646 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 21:33:01,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 21:33:01,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 21:33:01,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 21:33:01,884 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 21:33:01,884 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 21:33:01,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/triangular-longer-1.i [2025-03-14 21:33:03,000 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ac58fd2/575266ff9e934387b6947f2d5246ca05/FLAGf4a08e228 [2025-03-14 21:33:03,194 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 21:33:03,195 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-1.i [2025-03-14 21:33:03,204 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ac58fd2/575266ff9e934387b6947f2d5246ca05/FLAGf4a08e228 [2025-03-14 21:33:03,579 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ac58fd2/575266ff9e934387b6947f2d5246ca05 [2025-03-14 21:33:03,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 21:33:03,581 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-14 21:33:03,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 21:33:03,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 21:33:03,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 21:33:03,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d88f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03, skipping insertion in model container [2025-03-14 21:33:03,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 21:33:03,774 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-1.i[30961,30974] [2025-03-14 21:33:03,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 21:33:03,784 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 21:33:03,807 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/triangular-longer-1.i[30961,30974] [2025-03-14 21:33:03,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 21:33:03,830 INFO L204 MainTranslator]: Completed translation [2025-03-14 21:33:03,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03 WrapperNode [2025-03-14 21:33:03,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 21:33:03,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 21:33:03,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 21:33:03,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 21:33:03,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,859 INFO L138 Inliner]: procedures = 168, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2025-03-14 21:33:03,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 21:33:03,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 21:33:03,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 21:33:03,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 21:33:03,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,874 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,877 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 21:33:03,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-14 21:33:03,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-14 21:33:03,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-14 21:33:03,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (1/1) ... [2025-03-14 21:33:03,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-14 21:33:03,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:03,914 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 21:33:03,916 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 21:33:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-03-14 21:33:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-03-14 21:33:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-03-14 21:33:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-03-14 21:33:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 21:33:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 21:33:03,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 21:33:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 21:33:03,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 21:33:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 21:33:03,951 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 21:33:04,052 INFO L234 CfgBuilder]: Building ICFG [2025-03-14 21:33:04,054 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 21:33:04,140 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 21:33:04,140 INFO L283 CfgBuilder]: Performing block encoding [2025-03-14 21:33:04,145 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 21:33:04,145 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 21:33:04,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 09:33:04 BoogieIcfgContainer [2025-03-14 21:33:04,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-14 21:33:04,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 21:33:04,147 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 21:33:04,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 21:33:04,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 09:33:03" (1/3) ... [2025-03-14 21:33:04,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c18b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 09:33:04, skipping insertion in model container [2025-03-14 21:33:04,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 09:33:03" (2/3) ... [2025-03-14 21:33:04,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c18b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 09:33:04, skipping insertion in model container [2025-03-14 21:33:04,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.03 09:33:04" (3/3) ... [2025-03-14 21:33:04,151 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2025-03-14 21:33:04,161 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 21:33:04,162 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-1.i that has 3 procedures, 60 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-03-14 21:33:04,162 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 21:33:04,203 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 21:33:04,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 21:33:04,245 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;@251a60f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 21:33:04,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-03-14 21:33:04,283 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 21:33:04,283 INFO L124 PetriNetUnfolderBase]: 1/50 cut-off events. [2025-03-14 21:33:04,285 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 21:33:04,285 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:04,285 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] [2025-03-14 21:33:04,286 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:04,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:04,291 INFO L85 PathProgramCache]: Analyzing trace with hash 441863441, now seen corresponding path program 1 times [2025-03-14 21:33:04,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:04,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159600143] [2025-03-14 21:33:04,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:04,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:04,708 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 21:33:04,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:04,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159600143] [2025-03-14 21:33:04,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159600143] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:33:04,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:33:04,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 21:33:04,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697245518] [2025-03-14 21:33:04,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:33:04,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 21:33:04,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:04,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 21:33:04,733 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-14 21:33:04,746 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:04,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 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 21:33:04,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:04,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:04,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:04,918 INFO L124 PetriNetUnfolderBase]: 60/293 cut-off events. [2025-03-14 21:33:04,919 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-14 21:33:04,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 293 events. 60/293 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1414 event pairs, 2 based on Foata normal form. 3/267 useless extension candidates. Maximal degree in co-relation 370. Up to 32 conditions per place. [2025-03-14 21:33:04,927 INFO L140 encePairwiseOnDemand]: 52/62 looper letters, 14 selfloop transitions, 6 changer transitions 19/81 dead transitions. [2025-03-14 21:33:04,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 81 transitions, 238 flow [2025-03-14 21:33:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-14 21:33:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-14 21:33:04,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 424 transitions. [2025-03-14 21:33:04,936 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8548387096774194 [2025-03-14 21:33:04,938 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 4 predicate places. [2025-03-14 21:33:04,938 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 81 transitions, 238 flow [2025-03-14 21:33:04,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.333333333333336) internal successors, (296), 6 states have internal predecessors, (296), 0 states have call successors, (0), 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 21:33:04,938 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:04,938 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] [2025-03-14 21:33:04,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 21:33:04,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:04,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1386570354, now seen corresponding path program 1 times [2025-03-14 21:33:04,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:04,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209493494] [2025-03-14 21:33:04,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:04,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:05,096 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 21:33:05,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:05,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209493494] [2025-03-14 21:33:05,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209493494] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:33:05,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:33:05,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 21:33:05,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709469940] [2025-03-14 21:33:05,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:33:05,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 21:33:05,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:05,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 21:33:05,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-14 21:33:05,099 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:05,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 81 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 0 states have call successors, (0), 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 21:33:05,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:05,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:05,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:05,251 INFO L124 PetriNetUnfolderBase]: 84/354 cut-off events. [2025-03-14 21:33:05,251 INFO L125 PetriNetUnfolderBase]: For 60/110 co-relation queries the response was YES. [2025-03-14 21:33:05,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 354 events. 84/354 cut-off events. For 60/110 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1768 event pairs, 0 based on Foata normal form. 17/339 useless extension candidates. Maximal degree in co-relation 596. Up to 61 conditions per place. [2025-03-14 21:33:05,254 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 28 selfloop transitions, 11 changer transitions 61/142 dead transitions. [2025-03-14 21:33:05,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 142 transitions, 677 flow [2025-03-14 21:33:05,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 21:33:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 21:33:05,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 528 transitions. [2025-03-14 21:33:05,257 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8516129032258064 [2025-03-14 21:33:05,257 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 13 predicate places. [2025-03-14 21:33:05,257 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 142 transitions, 677 flow [2025-03-14 21:33:05,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 0 states have call successors, (0), 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 21:33:05,258 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:05,258 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] [2025-03-14 21:33:05,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 21:33:05,258 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:05,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:05,258 INFO L85 PathProgramCache]: Analyzing trace with hash 2113768180, now seen corresponding path program 2 times [2025-03-14 21:33:05,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:05,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24314482] [2025-03-14 21:33:05,258 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:05,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:05,274 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 21:33:05,274 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:05,404 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 21:33:05,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:05,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24314482] [2025-03-14 21:33:05,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24314482] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:33:05,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:33:05,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-14 21:33:05,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536815821] [2025-03-14 21:33:05,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:33:05,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 21:33:05,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:05,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 21:33:05,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-14 21:33:05,405 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:05,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 142 transitions, 677 flow. Second operand has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 0 states have call successors, (0), 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 21:33:05,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:05,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:05,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:05,534 INFO L124 PetriNetUnfolderBase]: 96/425 cut-off events. [2025-03-14 21:33:05,535 INFO L125 PetriNetUnfolderBase]: For 198/305 co-relation queries the response was YES. [2025-03-14 21:33:05,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 887 conditions, 425 events. 96/425 cut-off events. For 198/305 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2345 event pairs, 0 based on Foata normal form. 41/431 useless extension candidates. Maximal degree in co-relation 849. Up to 77 conditions per place. [2025-03-14 21:33:05,538 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 27 selfloop transitions, 12 changer transitions 91/172 dead transitions. [2025-03-14 21:33:05,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 172 transitions, 1109 flow [2025-03-14 21:33:05,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-14 21:33:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-14 21:33:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 468 transitions. [2025-03-14 21:33:05,540 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8387096774193549 [2025-03-14 21:33:05,541 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 21 predicate places. [2025-03-14 21:33:05,541 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 172 transitions, 1109 flow [2025-03-14 21:33:05,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 0 states have call successors, (0), 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 21:33:05,541 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:05,541 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] [2025-03-14 21:33:05,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 21:33:05,541 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:05,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:05,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1627687119, now seen corresponding path program 1 times [2025-03-14 21:33:05,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:05,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426234001] [2025-03-14 21:33:05,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:05,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:05,668 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 21:33:05,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:05,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426234001] [2025-03-14 21:33:05,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426234001] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:33:05,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:33:05,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 21:33:05,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736973907] [2025-03-14 21:33:05,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:33:05,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 21:33:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:05,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 21:33:05,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-14 21:33:05,669 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:05,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 172 transitions, 1109 flow. Second operand has 7 states, 7 states have (on average 49.42857142857143) internal successors, (346), 7 states have internal predecessors, (346), 0 states have call successors, (0), 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 21:33:05,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:05,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:05,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:05,846 INFO L124 PetriNetUnfolderBase]: 122/540 cut-off events. [2025-03-14 21:33:05,847 INFO L125 PetriNetUnfolderBase]: For 484/637 co-relation queries the response was YES. [2025-03-14 21:33:05,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 540 events. 122/540 cut-off events. For 484/637 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3198 event pairs, 0 based on Foata normal form. 52/547 useless extension candidates. Maximal degree in co-relation 1266. Up to 105 conditions per place. [2025-03-14 21:33:05,850 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 26 selfloop transitions, 21 changer transitions 116/205 dead transitions. [2025-03-14 21:33:05,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 205 transitions, 1691 flow [2025-03-14 21:33:05,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 21:33:05,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 21:33:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 681 transitions. [2025-03-14 21:33:05,852 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8449131513647643 [2025-03-14 21:33:05,852 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 33 predicate places. [2025-03-14 21:33:05,852 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 205 transitions, 1691 flow [2025-03-14 21:33:05,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.42857142857143) internal successors, (346), 7 states have internal predecessors, (346), 0 states have call successors, (0), 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 21:33:05,853 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:05,853 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] [2025-03-14 21:33:05,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 21:33:05,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:05,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:05,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1347849193, now seen corresponding path program 2 times [2025-03-14 21:33:05,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:05,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483761775] [2025-03-14 21:33:05,853 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:05,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:05,866 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-14 21:33:05,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:05,973 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 21:33:05,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:05,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483761775] [2025-03-14 21:33:05,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483761775] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:33:05,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 21:33:05,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-14 21:33:05,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754819141] [2025-03-14 21:33:05,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:33:05,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-14 21:33:05,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:05,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-14 21:33:05,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-14 21:33:05,974 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:05,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 205 transitions, 1691 flow. Second operand has 7 states, 7 states have (on average 49.42857142857143) internal successors, (346), 7 states have internal predecessors, (346), 0 states have call successors, (0), 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 21:33:05,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:05,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:05,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:06,150 INFO L124 PetriNetUnfolderBase]: 127/565 cut-off events. [2025-03-14 21:33:06,151 INFO L125 PetriNetUnfolderBase]: For 843/1078 co-relation queries the response was YES. [2025-03-14 21:33:06,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 565 events. 127/565 cut-off events. For 843/1078 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3449 event pairs, 0 based on Foata normal form. 63/584 useless extension candidates. Maximal degree in co-relation 1516. Up to 109 conditions per place. [2025-03-14 21:33:06,153 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 25 selfloop transitions, 23 changer transitions 133/223 dead transitions. [2025-03-14 21:33:06,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 223 transitions, 2225 flow [2025-03-14 21:33:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-14 21:33:06,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-14 21:33:06,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 672 transitions. [2025-03-14 21:33:06,156 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8337468982630273 [2025-03-14 21:33:06,157 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 45 predicate places. [2025-03-14 21:33:06,157 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 223 transitions, 2225 flow [2025-03-14 21:33:06,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 49.42857142857143) internal successors, (346), 7 states have internal predecessors, (346), 0 states have call successors, (0), 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 21:33:06,157 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:06,158 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] [2025-03-14 21:33:06,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 21:33:06,158 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:06,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:06,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1707711483, now seen corresponding path program 1 times [2025-03-14 21:33:06,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:06,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275499793] [2025-03-14 21:33:06,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:06,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:06,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:06,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275499793] [2025-03-14 21:33:06,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275499793] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:06,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683588338] [2025-03-14 21:33:06,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:06,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:06,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:06,288 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 21:33:06,291 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 21:33:06,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:06,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-14 21:33:06,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:06,466 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:06,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:06,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683588338] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:06,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:06,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2025-03-14 21:33:06,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142868632] [2025-03-14 21:33:06,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:06,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-14 21:33:06,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:06,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-14 21:33:06,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-03-14 21:33:06,639 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:06,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 223 transitions, 2225 flow. Second operand has 13 states, 13 states have (on average 49.61538461538461) internal successors, (645), 13 states have internal predecessors, (645), 0 states have call successors, (0), 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 21:33:06,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:06,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:06,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:06,960 INFO L124 PetriNetUnfolderBase]: 203/932 cut-off events. [2025-03-14 21:33:06,960 INFO L125 PetriNetUnfolderBase]: For 1882/2207 co-relation queries the response was YES. [2025-03-14 21:33:06,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2819 conditions, 932 events. 203/932 cut-off events. For 1882/2207 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 5777 event pairs, 0 based on Foata normal form. 69/926 useless extension candidates. Maximal degree in co-relation 2766. Up to 175 conditions per place. [2025-03-14 21:33:06,964 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 43 selfloop transitions, 17 changer transitions 236/338 dead transitions. [2025-03-14 21:33:06,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 338 transitions, 4189 flow [2025-03-14 21:33:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-14 21:33:06,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-14 21:33:06,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 1203 transitions. [2025-03-14 21:33:06,966 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8436185133239832 [2025-03-14 21:33:06,966 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 67 predicate places. [2025-03-14 21:33:06,966 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 338 transitions, 4189 flow [2025-03-14 21:33:06,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 49.61538461538461) internal successors, (645), 13 states have internal predecessors, (645), 0 states have call successors, (0), 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 21:33:06,967 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:06,967 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] [2025-03-14 21:33:06,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-14 21:33:07,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-03-14 21:33:07,168 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:07,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:07,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1358411717, now seen corresponding path program 2 times [2025-03-14 21:33:07,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:07,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766416847] [2025-03-14 21:33:07,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:07,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:07,176 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 21:33:07,176 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:07,270 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 21:33:07,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:07,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766416847] [2025-03-14 21:33:07,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766416847] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:07,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359802186] [2025-03-14 21:33:07,270 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:07,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:07,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:07,273 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 21:33:07,275 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 21:33:07,322 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 21:33:07,322 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:07,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-14 21:33:07,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:07,403 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 21:33:07,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:07,546 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 21:33:07,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359802186] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:07,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:07,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2025-03-14 21:33:07,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950544423] [2025-03-14 21:33:07,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:07,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-14 21:33:07,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:07,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-14 21:33:07,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2025-03-14 21:33:07,548 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:07,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 338 transitions, 4189 flow. Second operand has 14 states, 14 states have (on average 49.642857142857146) internal successors, (695), 14 states have internal predecessors, (695), 0 states have call successors, (0), 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 21:33:07,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:07,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:07,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:08,018 INFO L124 PetriNetUnfolderBase]: 318/1491 cut-off events. [2025-03-14 21:33:08,019 INFO L125 PetriNetUnfolderBase]: For 4007/4504 co-relation queries the response was YES. [2025-03-14 21:33:08,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4909 conditions, 1491 events. 318/1491 cut-off events. For 4007/4504 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 11291 event pairs, 0 based on Foata normal form. 95/1465 useless extension candidates. Maximal degree in co-relation 4851. Up to 296 conditions per place. [2025-03-14 21:33:08,025 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 49 selfloop transitions, 44 changer transitions 371/506 dead transitions. [2025-03-14 21:33:08,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 506 transitions, 7461 flow [2025-03-14 21:33:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-14 21:33:08,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-14 21:33:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1604 transitions. [2025-03-14 21:33:08,028 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8345473465140478 [2025-03-14 21:33:08,029 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 97 predicate places. [2025-03-14 21:33:08,029 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 506 transitions, 7461 flow [2025-03-14 21:33:08,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 49.642857142857146) internal successors, (695), 14 states have internal predecessors, (695), 0 states have call successors, (0), 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 21:33:08,029 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:08,029 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-14 21:33:08,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-14 21:33:08,234 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 21:33:08,234 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:08,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:08,235 INFO L85 PathProgramCache]: Analyzing trace with hash 503979302, now seen corresponding path program 1 times [2025-03-14 21:33:08,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:08,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987620932] [2025-03-14 21:33:08,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:08,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987620932] [2025-03-14 21:33:08,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987620932] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:08,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409484108] [2025-03-14 21:33:08,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 21:33:08,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:08,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:08,350 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 21:33:08,351 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 21:33:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:08,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-14 21:33:08,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:08,472 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:08,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:08,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409484108] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:08,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:08,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2025-03-14 21:33:08,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177108939] [2025-03-14 21:33:08,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:08,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 21:33:08,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:08,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 21:33:08,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2025-03-14 21:33:08,604 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:08,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 506 transitions, 7461 flow. Second operand has 15 states, 15 states have (on average 49.53333333333333) internal successors, (743), 15 states have internal predecessors, (743), 0 states have call successors, (0), 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 21:33:08,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:08,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:08,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:09,112 INFO L124 PetriNetUnfolderBase]: 505/2472 cut-off events. [2025-03-14 21:33:09,112 INFO L125 PetriNetUnfolderBase]: For 7951/8544 co-relation queries the response was YES. [2025-03-14 21:33:09,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8641 conditions, 2472 events. 505/2472 cut-off events. For 7951/8544 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 21628 event pairs, 0 based on Foata normal form. 129/2389 useless extension candidates. Maximal degree in co-relation 8578. Up to 494 conditions per place. [2025-03-14 21:33:09,121 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 68 selfloop transitions, 60 changer transitions 597/767 dead transitions. [2025-03-14 21:33:09,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 767 transitions, 13079 flow [2025-03-14 21:33:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-14 21:33:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2025-03-14 21:33:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 1663 transitions. [2025-03-14 21:33:09,124 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8382056451612904 [2025-03-14 21:33:09,124 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 128 predicate places. [2025-03-14 21:33:09,125 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 767 transitions, 13079 flow [2025-03-14 21:33:09,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 49.53333333333333) internal successors, (743), 15 states have internal predecessors, (743), 0 states have call successors, (0), 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 21:33:09,125 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:09,125 INFO L221 CegarLoopForPetriNet]: trace histogram [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] [2025-03-14 21:33:09,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-14 21:33:09,325 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 21:33:09,326 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:09,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:09,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1644084034, now seen corresponding path program 2 times [2025-03-14 21:33:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:09,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83037615] [2025-03-14 21:33:09,326 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:09,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:09,333 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 21:33:09,333 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:09,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:09,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83037615] [2025-03-14 21:33:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83037615] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:09,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1246031498] [2025-03-14 21:33:09,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:09,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:09,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:09,434 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 21:33:09,436 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 21:33:09,481 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 21:33:09,481 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:09,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-14 21:33:09,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:09,548 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:09,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:09,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:09,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1246031498] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:09,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:09,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2025-03-14 21:33:09,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791387707] [2025-03-14 21:33:09,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:09,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-14 21:33:09,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:09,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-14 21:33:09,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2025-03-14 21:33:09,636 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:09,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 767 transitions, 13079 flow. Second operand has 15 states, 15 states have (on average 49.53333333333333) internal successors, (743), 15 states have internal predecessors, (743), 0 states have call successors, (0), 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 21:33:09,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:09,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:09,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:10,262 INFO L124 PetriNetUnfolderBase]: 625/2931 cut-off events. [2025-03-14 21:33:10,262 INFO L125 PetriNetUnfolderBase]: For 12910/14016 co-relation queries the response was YES. [2025-03-14 21:33:10,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11535 conditions, 2931 events. 625/2931 cut-off events. For 12910/14016 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 26413 event pairs, 0 based on Foata normal form. 192/2887 useless extension candidates. Maximal degree in co-relation 11467. Up to 623 conditions per place. [2025-03-14 21:33:10,273 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 75 selfloop transitions, 85 changer transitions 762/964 dead transitions. [2025-03-14 21:33:10,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 964 transitions, 18461 flow [2025-03-14 21:33:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-14 21:33:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2025-03-14 21:33:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 1808 transitions. [2025-03-14 21:33:10,276 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8331797235023042 [2025-03-14 21:33:10,276 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 162 predicate places. [2025-03-14 21:33:10,276 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 964 transitions, 18461 flow [2025-03-14 21:33:10,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 49.53333333333333) internal successors, (743), 15 states have internal predecessors, (743), 0 states have call successors, (0), 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 21:33:10,277 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:10,277 INFO L221 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:10,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-14 21:33:10,481 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 21:33:10,481 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:10,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:10,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1058022666, now seen corresponding path program 3 times [2025-03-14 21:33:10,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:10,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054094335] [2025-03-14 21:33:10,482 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 21:33:10,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:10,492 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-14 21:33:10,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:10,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:10,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054094335] [2025-03-14 21:33:10,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054094335] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:10,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027825772] [2025-03-14 21:33:10,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 21:33:10,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:10,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:10,657 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 21:33:10,659 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 21:33:10,699 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-14 21:33:10,699 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:10,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-14 21:33:10,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:10,782 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:10,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:10,980 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 21:33:10,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027825772] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:10,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:10,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-03-14 21:33:10,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256610828] [2025-03-14 21:33:10,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:10,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-14 21:33:10,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:10,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-14 21:33:10,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2025-03-14 21:33:10,983 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:10,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 964 transitions, 18461 flow. Second operand has 25 states, 25 states have (on average 49.36) internal successors, (1234), 25 states have internal predecessors, (1234), 0 states have call successors, (0), 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 21:33:10,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:10,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:10,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:12,214 INFO L124 PetriNetUnfolderBase]: 910/4500 cut-off events. [2025-03-14 21:33:12,214 INFO L125 PetriNetUnfolderBase]: For 22813/24172 co-relation queries the response was YES. [2025-03-14 21:33:12,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18399 conditions, 4500 events. 910/4500 cut-off events. For 22813/24172 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 40922 event pairs, 0 based on Foata normal form. 216/4336 useless extension candidates. Maximal degree in co-relation 18326. Up to 917 conditions per place. [2025-03-14 21:33:12,232 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 100 selfloop transitions, 122 changer transitions 1110/1374 dead transitions. [2025-03-14 21:33:12,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 1374 transitions, 29317 flow [2025-03-14 21:33:12,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2025-03-14 21:33:12,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2025-03-14 21:33:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 2836 transitions. [2025-03-14 21:33:12,234 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8316715542521994 [2025-03-14 21:33:12,235 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 216 predicate places. [2025-03-14 21:33:12,235 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 1374 transitions, 29317 flow [2025-03-14 21:33:12,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 49.36) internal successors, (1234), 25 states have internal predecessors, (1234), 0 states have call successors, (0), 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 21:33:12,235 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:12,235 INFO L221 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:12,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-14 21:33:12,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-14 21:33:12,440 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:12,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:12,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1645827909, now seen corresponding path program 4 times [2025-03-14 21:33:12,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726417318] [2025-03-14 21:33:12,441 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 21:33:12,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:12,455 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 21:33:12,455 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:12,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:12,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726417318] [2025-03-14 21:33:12,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726417318] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:12,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387770485] [2025-03-14 21:33:12,756 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-14 21:33:12,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:12,759 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 21:33:12,760 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 21:33:12,808 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-14 21:33:12,808 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:12,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-14 21:33:12,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:12,988 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:12,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:13,309 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:13,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387770485] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:13,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:13,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 27 [2025-03-14 21:33:13,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359824234] [2025-03-14 21:33:13,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:13,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-14 21:33:13,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:13,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-14 21:33:13,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2025-03-14 21:33:13,312 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:13,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 1374 transitions, 29317 flow. Second operand has 27 states, 27 states have (on average 49.2962962962963) internal successors, (1331), 27 states have internal predecessors, (1331), 0 states have call successors, (0), 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 21:33:13,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:13,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:13,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:14,628 INFO L124 PetriNetUnfolderBase]: 1380/7017 cut-off events. [2025-03-14 21:33:14,628 INFO L125 PetriNetUnfolderBase]: For 41317/43004 co-relation queries the response was YES. [2025-03-14 21:33:14,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30093 conditions, 7017 events. 1380/7017 cut-off events. For 41317/43004 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 67870 event pairs, 0 based on Foata normal form. 233/6645 useless extension candidates. Maximal degree in co-relation 30015. Up to 1385 conditions per place. [2025-03-14 21:33:14,650 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 188 selfloop transitions, 98 changer transitions 1754/2082 dead transitions. [2025-03-14 21:33:14,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 2082 transitions, 48965 flow [2025-03-14 21:33:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-14 21:33:14,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2025-03-14 21:33:14,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 2803 transitions. [2025-03-14 21:33:14,653 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8372162485065711 [2025-03-14 21:33:14,653 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 269 predicate places. [2025-03-14 21:33:14,653 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 2082 transitions, 48965 flow [2025-03-14 21:33:14,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 49.2962962962963) internal successors, (1331), 27 states have internal predecessors, (1331), 0 states have call successors, (0), 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 21:33:14,654 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:14,654 INFO L221 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:14,659 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 21:33:14,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:14,858 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:14,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:14,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1440096373, now seen corresponding path program 5 times [2025-03-14 21:33:14,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:14,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828657313] [2025-03-14 21:33:14,859 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 21:33:14,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:14,870 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-03-14 21:33:14,874 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:15,571 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 1 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:15,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:15,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828657313] [2025-03-14 21:33:15,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828657313] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:15,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686928729] [2025-03-14 21:33:15,572 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-14 21:33:15,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:15,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:15,575 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 21:33:15,575 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 21:33:15,625 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2025-03-14 21:33:15,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:15,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-14 21:33:15,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:15,831 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 1 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:15,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:16,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686928729] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:16,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:16,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 19, 19] total 35 [2025-03-14 21:33:16,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802949181] [2025-03-14 21:33:16,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:16,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-03-14 21:33:16,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:16,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-03-14 21:33:16,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2025-03-14 21:33:16,147 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 62 [2025-03-14 21:33:16,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 2082 transitions, 48965 flow. Second operand has 35 states, 35 states have (on average 43.628571428571426) internal successors, (1527), 35 states have internal predecessors, (1527), 0 states have call successors, (0), 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 21:33:16,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:16,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 62 [2025-03-14 21:33:16,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:24,369 INFO L124 PetriNetUnfolderBase]: 13462/44454 cut-off events. [2025-03-14 21:33:24,369 INFO L125 PetriNetUnfolderBase]: For 653119/682793 co-relation queries the response was YES. [2025-03-14 21:33:24,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223872 conditions, 44454 events. 13462/44454 cut-off events. For 653119/682793 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 524537 event pairs, 108 based on Foata normal form. 1825/41573 useless extension candidates. Maximal degree in co-relation 223789. Up to 8814 conditions per place. [2025-03-14 21:33:24,559 INFO L140 encePairwiseOnDemand]: 48/62 looper letters, 361 selfloop transitions, 241 changer transitions 2834/3471 dead transitions. [2025-03-14 21:33:24,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 424 places, 3471 transitions, 81213 flow [2025-03-14 21:33:24,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2025-03-14 21:33:24,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2025-03-14 21:33:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 4358 transitions. [2025-03-14 21:33:24,562 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7810035842293906 [2025-03-14 21:33:24,563 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 358 predicate places. [2025-03-14 21:33:24,563 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 3471 transitions, 81213 flow [2025-03-14 21:33:24,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 43.628571428571426) internal successors, (1527), 35 states have internal predecessors, (1527), 0 states have call successors, (0), 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 21:33:24,565 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:24,565 INFO L221 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:24,571 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 21:33:24,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:24,770 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:24,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:24,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1466403717, now seen corresponding path program 6 times [2025-03-14 21:33:24,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:24,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793366399] [2025-03-14 21:33:24,771 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 21:33:24,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:24,784 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-03-14 21:33:24,784 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:24,994 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:24,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793366399] [2025-03-14 21:33:24,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793366399] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:24,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575810597] [2025-03-14 21:33:24,994 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-14 21:33:24,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:24,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:24,997 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 21:33:24,998 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 21:33:25,043 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-03-14 21:33:25,043 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:25,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-14 21:33:25,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:25,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:25,364 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:25,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575810597] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:25,364 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:25,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 31 [2025-03-14 21:33:25,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631645814] [2025-03-14 21:33:25,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:25,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-03-14 21:33:25,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:25,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-03-14 21:33:25,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2025-03-14 21:33:25,366 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:25,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 3471 transitions, 81213 flow. Second operand has 31 states, 31 states have (on average 49.29032258064516) internal successors, (1528), 31 states have internal predecessors, (1528), 0 states have call successors, (0), 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 21:33:25,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:25,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:25,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:34,762 INFO L124 PetriNetUnfolderBase]: 15345/49740 cut-off events. [2025-03-14 21:33:34,763 INFO L125 PetriNetUnfolderBase]: For 887587/921021 co-relation queries the response was YES. [2025-03-14 21:33:35,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270711 conditions, 49740 events. 15345/49740 cut-off events. For 887587/921021 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 592529 event pairs, 356 based on Foata normal form. 2173/46610 useless extension candidates. Maximal degree in co-relation 270623. Up to 10142 conditions per place. [2025-03-14 21:33:35,159 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 242 selfloop transitions, 273 changer transitions 3128/3836 dead transitions. [2025-03-14 21:33:35,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 487 places, 3836 transitions, 97559 flow [2025-03-14 21:33:35,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2025-03-14 21:33:35,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2025-03-14 21:33:35,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 3311 transitions. [2025-03-14 21:33:35,163 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8344254032258065 [2025-03-14 21:33:35,164 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 421 predicate places. [2025-03-14 21:33:35,164 INFO L471 AbstractCegarLoop]: Abstraction has has 487 places, 3836 transitions, 97559 flow [2025-03-14 21:33:35,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 49.29032258064516) internal successors, (1528), 31 states have internal predecessors, (1528), 0 states have call successors, (0), 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 21:33:35,164 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:35,165 INFO L221 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:35,172 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 21:33:35,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-14 21:33:35,365 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:35,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:35,366 INFO L85 PathProgramCache]: Analyzing trace with hash 655515734, now seen corresponding path program 7 times [2025-03-14 21:33:35,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:35,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907147365] [2025-03-14 21:33:35,366 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 21:33:35,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:35,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:35,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907147365] [2025-03-14 21:33:35,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907147365] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:35,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232131574] [2025-03-14 21:33:35,688 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-14 21:33:35,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:35,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:35,690 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 21:33:35,691 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 21:33:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 21:33:35,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-14 21:33:35,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 1 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:35,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:36,083 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:36,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232131574] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:36,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2025-03-14 21:33:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517547451] [2025-03-14 21:33:36,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-14 21:33:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:36,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-14 21:33:36,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2025-03-14 21:33:36,085 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:36,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 487 places, 3836 transitions, 97559 flow. Second operand has 28 states, 28 states have (on average 49.32142857142857) internal successors, (1381), 28 states have internal predecessors, (1381), 0 states have call successors, (0), 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 21:33:36,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:36,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:36,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:46,718 INFO L124 PetriNetUnfolderBase]: 15611/50557 cut-off events. [2025-03-14 21:33:46,719 INFO L125 PetriNetUnfolderBase]: For 1049097/1081200 co-relation queries the response was YES. [2025-03-14 21:33:46,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292145 conditions, 50557 events. 15611/50557 cut-off events. For 1049097/1081200 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 603209 event pairs, 416 based on Foata normal form. 2219/47444 useless extension candidates. Maximal degree in co-relation 292052. Up to 10319 conditions per place. [2025-03-14 21:33:46,956 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 240 selfloop transitions, 289 changer transitions 3193/3915 dead transitions. [2025-03-14 21:33:46,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 555 places, 3915 transitions, 106785 flow [2025-03-14 21:33:46,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2025-03-14 21:33:46,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2025-03-14 21:33:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 3552 transitions. [2025-03-14 21:33:46,959 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8302945301542777 [2025-03-14 21:33:46,959 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 489 predicate places. [2025-03-14 21:33:46,959 INFO L471 AbstractCegarLoop]: Abstraction has has 555 places, 3915 transitions, 106785 flow [2025-03-14 21:33:46,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 49.32142857142857) internal successors, (1381), 28 states have internal predecessors, (1381), 0 states have call successors, (0), 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 21:33:46,959 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:33:46,960 INFO L221 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:33:46,966 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 21:33:47,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-14 21:33:47,160 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:33:47,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:33:47,161 INFO L85 PathProgramCache]: Analyzing trace with hash -308607376, now seen corresponding path program 8 times [2025-03-14 21:33:47,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:33:47,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287253904] [2025-03-14 21:33:47,161 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:47,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:33:47,175 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 21:33:47,175 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:47,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:33:47,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287253904] [2025-03-14 21:33:47,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287253904] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:33:47,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465457211] [2025-03-14 21:33:47,428 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-14 21:33:47,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:33:47,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:33:47,429 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 21:33:47,431 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 21:33:47,480 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-14 21:33:47,481 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:33:47,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-14 21:33:47,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:33:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 1 proven. 346 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:47,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-14 21:33:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 0 proven. 347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 21:33:47,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465457211] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-14 21:33:47,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-14 21:33:47,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 47 [2025-03-14 21:33:47,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829089124] [2025-03-14 21:33:47,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-14 21:33:47,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-03-14 21:33:47,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:33:47,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-03-14 21:33:47,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=1682, Unknown=0, NotChecked=0, Total=2162 [2025-03-14 21:33:47,870 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 62 [2025-03-14 21:33:47,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 3915 transitions, 106785 flow. Second operand has 47 states, 47 states have (on average 49.191489361702125) internal successors, (2312), 47 states have internal predecessors, (2312), 0 states have call successors, (0), 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 21:33:47,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:33:47,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 62 [2025-03-14 21:33:47,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:33:59,920 INFO L124 PetriNetUnfolderBase]: 17865/57188 cut-off events. [2025-03-14 21:33:59,920 INFO L125 PetriNetUnfolderBase]: For 1392305/1429739 co-relation queries the response was YES. [2025-03-14 21:34:00,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352790 conditions, 57188 events. 17865/57188 cut-off events. For 1392305/1429739 co-relation queries the response was YES. Maximal size of possible extension queue 700. Compared 686344 event pairs, 624 based on Foata normal form. 2311/53473 useless extension candidates. Maximal degree in co-relation 352692. Up to 11783 conditions per place. [2025-03-14 21:34:00,229 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 277 selfloop transitions, 312 changer transitions 3607/4389 dead transitions. [2025-03-14 21:34:00,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 627 places, 4389 transitions, 128967 flow [2025-03-14 21:34:00,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2025-03-14 21:34:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2025-03-14 21:34:00,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 3754 transitions. [2025-03-14 21:34:00,232 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8294299602297834 [2025-03-14 21:34:00,232 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 561 predicate places. [2025-03-14 21:34:00,232 INFO L471 AbstractCegarLoop]: Abstraction has has 627 places, 4389 transitions, 128967 flow [2025-03-14 21:34:00,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 49.191489361702125) internal successors, (2312), 47 states have internal predecessors, (2312), 0 states have call successors, (0), 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 21:34:00,233 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-14 21:34:00,233 INFO L221 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:34:00,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-14 21:34:00,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-14 21:34:00,434 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-03-14 21:34:00,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 21:34:00,434 INFO L85 PathProgramCache]: Analyzing trace with hash -942702037, now seen corresponding path program 9 times [2025-03-14 21:34:00,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 21:34:00,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262079185] [2025-03-14 21:34:00,435 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 21:34:00,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 21:34:00,453 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-14 21:34:00,453 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:34:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-14 21:34:00,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 21:34:00,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262079185] [2025-03-14 21:34:00,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262079185] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-14 21:34:00,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88192558] [2025-03-14 21:34:00,718 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-14 21:34:00,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-14 21:34:00,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 21:34:00,720 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 21:34:00,721 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 21:34:00,771 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-14 21:34:00,771 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-14 21:34:00,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-14 21:34:00,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-14 21:34:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-14 21:34:00,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-14 21:34:00,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88192558] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 21:34:00,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-14 21:34:00,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [23] total 25 [2025-03-14 21:34:00,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701438605] [2025-03-14 21:34:00,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 21:34:00,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-14 21:34:00,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 21:34:00,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-14 21:34:00,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2025-03-14 21:34:00,856 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 62 [2025-03-14 21:34:00,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 627 places, 4389 transitions, 128967 flow. Second operand has 23 states, 23 states have (on average 52.91304347826087) internal successors, (1217), 23 states have internal predecessors, (1217), 0 states have call successors, (0), 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 21:34:00,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 21:34:00,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 62 [2025-03-14 21:34:00,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 21:35:00,095 INFO L124 PetriNetUnfolderBase]: 63242/201345 cut-off events. [2025-03-14 21:35:00,095 INFO L125 PetriNetUnfolderBase]: For 4616810/4751072 co-relation queries the response was YES. [2025-03-14 21:35:01,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228253 conditions, 201345 events. 63242/201345 cut-off events. For 4616810/4751072 co-relation queries the response was YES. Maximal size of possible extension queue 3530. Compared 3011244 event pairs, 1199 based on Foata normal form. 909/179827 useless extension candidates. Maximal degree in co-relation 1228153. Up to 40702 conditions per place. [2025-03-14 21:35:01,405 INFO L140 encePairwiseOnDemand]: 55/62 looper letters, 0 selfloop transitions, 0 changer transitions 5650/5650 dead transitions. [2025-03-14 21:35:01,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 5650 transitions, 127913 flow [2025-03-14 21:35:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-14 21:35:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2025-03-14 21:35:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 1769 transitions. [2025-03-14 21:35:01,407 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.864613880742913 [2025-03-14 21:35:01,408 INFO L298 CegarLoopForPetriNet]: 66 programPoint places, 591 predicate places. [2025-03-14 21:35:01,408 INFO L471 AbstractCegarLoop]: Abstraction has has 657 places, 5650 transitions, 127913 flow [2025-03-14 21:35:01,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 52.91304347826087) internal successors, (1217), 23 states have internal predecessors, (1217), 0 states have call successors, (0), 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 21:35:01,412 INFO L161 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/triangular-longer-1.i_petrified1_AllErrorsAtOnce [2025-03-14 21:35:01,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-03-14 21:35:01,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-03-14 21:35:01,467 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-03-14 21:35:01,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-14 21:35:01,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-14 21:35:01,669 INFO L422 BasicCegarLoop]: Path program histogram: [9, 2, 2, 2, 1] [2025-03-14 21:35:01,672 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-14 21:35:01,672 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-14 21:35:01,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.03 09:35:01 BasicIcfg [2025-03-14 21:35:01,675 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-14 21:35:01,675 INFO L158 Benchmark]: Toolchain (without parser) took 118094.06ms. Allocated memory was 71.3MB in the beginning and 5.2GB in the end (delta: 5.2GB). Free memory was 42.1MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2025-03-14 21:35:01,675 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 21:35:01,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.14ms. Allocated memory is still 71.3MB. Free memory was 42.0MB in the beginning and 22.6MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-03-14 21:35:01,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.03ms. Allocated memory is still 71.3MB. Free memory was 22.6MB in the beginning and 21.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-03-14 21:35:01,676 INFO L158 Benchmark]: Boogie Preprocessor took 24.83ms. Allocated memory is still 71.3MB. Free memory was 21.0MB in the beginning and 20.1MB in the end (delta: 861.2kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-14 21:35:01,676 INFO L158 Benchmark]: RCFGBuilder took 260.70ms. Allocated memory is still 71.3MB. Free memory was 20.0MB in the beginning and 35.2MB in the end (delta: -15.2MB). Peak memory consumption was 2.8MB. Max. memory is 8.0GB. [2025-03-14 21:35:01,676 INFO L158 Benchmark]: TraceAbstraction took 117528.14ms. Allocated memory was 71.3MB in the beginning and 5.2GB in the end (delta: 5.2GB). Free memory was 34.3MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. [2025-03-14 21:35:01,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 71.3MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.14ms. Allocated memory is still 71.3MB. Free memory was 42.0MB in the beginning and 22.6MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.03ms. Allocated memory is still 71.3MB. Free memory was 22.6MB in the beginning and 21.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.83ms. Allocated memory is still 71.3MB. Free memory was 21.0MB in the beginning and 20.1MB in the end (delta: 861.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 260.70ms. Allocated memory is still 71.3MB. Free memory was 20.0MB in the beginning and 35.2MB in the end (delta: -15.2MB). Peak memory consumption was 2.8MB. Max. memory is 8.0GB. * TraceAbstraction took 117528.14ms. Allocated memory was 71.3MB in the beginning and 5.2GB in the end (delta: 5.2GB). Free memory was 34.3MB in the beginning and 2.0GB in the end (delta: -2.0GB). Peak memory consumption was 4.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 722]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 117.4s, OverallIterations: 16, TraceHistogramMax: 11, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 107.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5175 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5175 mSDsluCounter, 962 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 840 mSDsCounter, 421 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3534 IncrementalHoareTripleChecker+Invalid, 3955 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 421 mSolverCounterUnsat, 122 mSDtfsCounter, 3534 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2409 GetRequests, 1609 SyntacticMatches, 16 SemanticMatches, 784 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20048 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128967occurred in iteration=15, InterpolantAutomatonStates: 612, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 2000 NumberOfCodeBlocks, 2000 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 2743 ConstructedInterpolants, 0 QuantifiedInterpolants, 10277 SizeOfPredicates, 130 NumberOfNonLiveVariables, 1793 ConjunctsInSsa, 182 ConjunctsInUnsatCore, 37 InterpolantComputations, 6 PerfectInterpolantSequences, 645/3529 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-14 21:35:01,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...