/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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows ASSERTandASSUME -i ../../../trunk/examples/svcomp/weaver/test-easy11.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.empire2-owicki-f61efc6-m [2025-03-15 03:08:02,725 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-15 03:08:02,779 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 [2025-03-15 03:08:02,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-15 03:08:02,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-15 03:08:02,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-15 03:08:02,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-15 03:08:02,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-15 03:08:02,806 INFO L153 SettingsManager]: * Use SBE=true [2025-03-15 03:08:02,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-15 03:08:02,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-15 03:08:02,807 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-15 03:08:02,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-15 03:08:02,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-15 03:08:02,808 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-15 03:08:02,808 INFO L153 SettingsManager]: * To the following directory=./dump/ [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:08:02,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-15 03:08:02,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-15 03:08:02,809 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> ASSERTandASSUME [2025-03-15 03:08:03,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-15 03:08:03,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-15 03:08:03,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-15 03:08:03,144 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-15 03:08:03,144 INFO L274 PluginConnector]: CDTParser initialized [2025-03-15 03:08:03,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy11.wvr.c [2025-03-15 03:08:04,352 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c7fc7bf/086770c06e2a439b81ebf6723d58c15f/FLAGa3d4ec905 [2025-03-15 03:08:04,560 INFO L384 CDTParser]: Found 1 translation units. [2025-03-15 03:08:04,560 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy11.wvr.c [2025-03-15 03:08:04,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c7fc7bf/086770c06e2a439b81ebf6723d58c15f/FLAGa3d4ec905 [2025-03-15 03:08:04,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43c7fc7bf/086770c06e2a439b81ebf6723d58c15f [2025-03-15 03:08:04,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-15 03:08:04,588 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-03-15 03:08:04,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-15 03:08:04,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-15 03:08:04,594 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-15 03:08:04,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fe8122 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04, skipping insertion in model container [2025-03-15 03:08:04,596 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,607 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-15 03:08:04,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:08:04,750 INFO L200 MainTranslator]: Completed pre-run [2025-03-15 03:08:04,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-15 03:08:04,779 INFO L204 MainTranslator]: Completed translation [2025-03-15 03:08:04,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04 WrapperNode [2025-03-15 03:08:04,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-15 03:08:04,781 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-15 03:08:04,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-15 03:08:04,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-15 03:08:04,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,807 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2025-03-15 03:08:04,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-15 03:08:04,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-15 03:08:04,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-15 03:08:04,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-15 03:08:04,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-15 03:08:04,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-03-15 03:08:04,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-03-15 03:08:04,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-03-15 03:08:04,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (1/1) ... [2025-03-15 03:08:04,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-03-15 03:08:04,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:08:04,869 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) [2025-03-15 03:08:04,871 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 [2025-03-15 03:08:04,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-15 03:08:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-15 03:08:04,890 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-15 03:08:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-15 03:08:04,890 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-15 03:08:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-15 03:08:04,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-15 03:08:04,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-15 03:08:04,891 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-15 03:08:04,960 INFO L234 CfgBuilder]: Building ICFG [2025-03-15 03:08:04,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-15 03:08:05,137 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-15 03:08:05,137 INFO L283 CfgBuilder]: Performing block encoding [2025-03-15 03:08:05,178 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-15 03:08:05,179 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-15 03:08:05,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:08:05 BoogieIcfgContainer [2025-03-15 03:08:05,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-03-15 03:08:05,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-15 03:08:05,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-15 03:08:05,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-15 03:08:05,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 03:08:04" (1/3) ... [2025-03-15 03:08:05,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9e0849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:08:05, skipping insertion in model container [2025-03-15 03:08:05,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 03:08:04" (2/3) ... [2025-03-15 03:08:05,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9e0849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 03:08:05, skipping insertion in model container [2025-03-15 03:08:05,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 03:08:05" (3/3) ... [2025-03-15 03:08:05,188 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2025-03-15 03:08:05,200 INFO L303 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-15 03:08:05,202 INFO L169 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy11.wvr.c that has 3 procedures, 87 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-03-15 03:08:05,202 INFO L581 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-15 03:08:05,251 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-15 03:08:05,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-15 03:08:05,296 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;@7b0fd00a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-15 03:08:05,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-15 03:08:05,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-15 03:08:05,330 INFO L124 PetriNetUnfolderBase]: 1/38 cut-off events. [2025-03-15 03:08:05,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-15 03:08:05,333 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:05,333 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] [2025-03-15 03:08:05,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:05,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:05,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1282821564, now seen corresponding path program 1 times [2025-03-15 03:08:05,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:05,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391301618] [2025-03-15 03:08:05,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:05,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:05,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:05,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391301618] [2025-03-15 03:08:05,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391301618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:05,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:05,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:08:05,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980350841] [2025-03-15 03:08:05,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:05,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:08:05,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:05,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:08:05,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:08:05,613 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 90 [2025-03-15 03:08:05,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 70.5) internal successors, (282), 4 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:05,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:05,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 90 [2025-03-15 03:08:05,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:05,781 INFO L124 PetriNetUnfolderBase]: 41/200 cut-off events. [2025-03-15 03:08:05,781 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-03-15 03:08:05,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 200 events. 41/200 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 896 event pairs, 19 based on Foata normal form. 3/147 useless extension candidates. Maximal degree in co-relation 252. Up to 40 conditions per place. [2025-03-15 03:08:05,791 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 25 selfloop transitions, 5 changer transitions 12/95 dead transitions. [2025-03-15 03:08:05,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 95 transitions, 276 flow [2025-03-15 03:08:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 03:08:05,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 03:08:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2025-03-15 03:08:05,801 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8722222222222222 [2025-03-15 03:08:05,803 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, -6 predicate places. [2025-03-15 03:08:05,803 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 95 transitions, 276 flow [2025-03-15 03:08:05,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 4 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:05,804 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:05,804 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] [2025-03-15 03:08:05,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-15 03:08:05,804 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:05,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:05,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1282821563, now seen corresponding path program 1 times [2025-03-15 03:08:05,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:05,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384043260] [2025-03-15 03:08:05,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:05,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:05,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:05,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:05,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384043260] [2025-03-15 03:08:05,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384043260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:05,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:05,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:05,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465188949] [2025-03-15 03:08:05,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:05,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:05,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:05,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:05,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:05,970 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 90 [2025-03-15 03:08:05,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 95 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 62.166666666666664) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:05,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:05,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 90 [2025-03-15 03:08:05,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:06,109 INFO L124 PetriNetUnfolderBase]: 63/242 cut-off events. [2025-03-15 03:08:06,109 INFO L125 PetriNetUnfolderBase]: For 70/114 co-relation queries the response was YES. [2025-03-15 03:08:06,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 242 events. 63/242 cut-off events. For 70/114 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1090 event pairs, 13 based on Foata normal form. 7/186 useless extension candidates. Maximal degree in co-relation 437. Up to 50 conditions per place. [2025-03-15 03:08:06,112 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 38 selfloop transitions, 13 changer transitions 12/108 dead transitions. [2025-03-15 03:08:06,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 108 transitions, 440 flow [2025-03-15 03:08:06,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:08:06,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:08:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 468 transitions. [2025-03-15 03:08:06,114 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7428571428571429 [2025-03-15 03:08:06,115 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 0 predicate places. [2025-03-15 03:08:06,115 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 108 transitions, 440 flow [2025-03-15 03:08:06,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.166666666666664) internal successors, (373), 6 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,115 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:06,115 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] [2025-03-15 03:08:06,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-15 03:08:06,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:06,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:06,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1112761543, now seen corresponding path program 1 times [2025-03-15 03:08:06,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324189540] [2025-03-15 03:08:06,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:06,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:06,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:06,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324189540] [2025-03-15 03:08:06,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324189540] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:06,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:06,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:06,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317548312] [2025-03-15 03:08:06,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:06,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:06,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:06,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:06,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:06,210 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 90 [2025-03-15 03:08:06,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 108 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:06,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 90 [2025-03-15 03:08:06,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:06,368 INFO L124 PetriNetUnfolderBase]: 84/291 cut-off events. [2025-03-15 03:08:06,368 INFO L125 PetriNetUnfolderBase]: For 195/339 co-relation queries the response was YES. [2025-03-15 03:08:06,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 291 events. 84/291 cut-off events. For 195/339 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1410 event pairs, 25 based on Foata normal form. 10/223 useless extension candidates. Maximal degree in co-relation 684. Up to 97 conditions per place. [2025-03-15 03:08:06,373 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 61 selfloop transitions, 8 changer transitions 12/122 dead transitions. [2025-03-15 03:08:06,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 122 transitions, 675 flow [2025-03-15 03:08:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 03:08:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 03:08:06,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 381 transitions. [2025-03-15 03:08:06,375 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2025-03-15 03:08:06,376 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2025-03-15 03:08:06,376 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 122 transitions, 675 flow [2025-03-15 03:08:06,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.166666666666664) internal successors, (355), 6 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,376 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:06,376 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] [2025-03-15 03:08:06,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-15 03:08:06,376 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:06,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:06,378 INFO L85 PathProgramCache]: Analyzing trace with hash -135869208, now seen corresponding path program 1 times [2025-03-15 03:08:06,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:06,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399011304] [2025-03-15 03:08:06,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:06,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:06,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:06,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399011304] [2025-03-15 03:08:06,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399011304] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:06,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:06,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:08:06,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341979341] [2025-03-15 03:08:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:06,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:08:06,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:06,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:08:06,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:08:06,434 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2025-03-15 03:08:06,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 122 transitions, 675 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:06,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2025-03-15 03:08:06,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:06,530 INFO L124 PetriNetUnfolderBase]: 78/267 cut-off events. [2025-03-15 03:08:06,531 INFO L125 PetriNetUnfolderBase]: For 261/491 co-relation queries the response was YES. [2025-03-15 03:08:06,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 267 events. 78/267 cut-off events. For 261/491 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1251 event pairs, 15 based on Foata normal form. 18/224 useless extension candidates. Maximal degree in co-relation 772. Up to 97 conditions per place. [2025-03-15 03:08:06,534 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 51 selfloop transitions, 8 changer transitions 12/125 dead transitions. [2025-03-15 03:08:06,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 125 transitions, 830 flow [2025-03-15 03:08:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:08:06,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:08:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 362 transitions. [2025-03-15 03:08:06,535 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8044444444444444 [2025-03-15 03:08:06,535 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 7 predicate places. [2025-03-15 03:08:06,536 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 125 transitions, 830 flow [2025-03-15 03:08:06,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,536 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:06,536 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] [2025-03-15 03:08:06,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-15 03:08:06,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:06,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:06,537 INFO L85 PathProgramCache]: Analyzing trace with hash -589345875, now seen corresponding path program 1 times [2025-03-15 03:08:06,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:06,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56309491] [2025-03-15 03:08:06,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:06,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:06,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:06,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:06,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56309491] [2025-03-15 03:08:06,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56309491] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:06,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:06,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:06,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278311715] [2025-03-15 03:08:06,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:06,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:06,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:06,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:06,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:06,629 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 90 [2025-03-15 03:08:06,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 125 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:06,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 90 [2025-03-15 03:08:06,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:06,752 INFO L124 PetriNetUnfolderBase]: 77/285 cut-off events. [2025-03-15 03:08:06,752 INFO L125 PetriNetUnfolderBase]: For 431/849 co-relation queries the response was YES. [2025-03-15 03:08:06,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1010 conditions, 285 events. 77/285 cut-off events. For 431/849 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1328 event pairs, 16 based on Foata normal form. 31/250 useless extension candidates. Maximal degree in co-relation 866. Up to 87 conditions per place. [2025-03-15 03:08:06,755 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 46 selfloop transitions, 16 changer transitions 12/127 dead transitions. [2025-03-15 03:08:06,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 127 transitions, 970 flow [2025-03-15 03:08:06,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:08:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:08:06,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 503 transitions. [2025-03-15 03:08:06,758 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7984126984126985 [2025-03-15 03:08:06,760 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 13 predicate places. [2025-03-15 03:08:06,760 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 127 transitions, 970 flow [2025-03-15 03:08:06,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.0) internal successors, (396), 6 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,760 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:06,760 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] [2025-03-15 03:08:06,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-15 03:08:06,760 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:06,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:06,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1236474380, now seen corresponding path program 1 times [2025-03-15 03:08:06,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:06,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392808240] [2025-03-15 03:08:06,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:06,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:06,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:06,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392808240] [2025-03-15 03:08:06,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392808240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:06,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:06,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:08:06,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103748731] [2025-03-15 03:08:06,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:06,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:08:06,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:06,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:08:06,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:08:06,813 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 90 [2025-03-15 03:08:06,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 127 transitions, 970 flow. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:06,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 90 [2025-03-15 03:08:06,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:06,871 INFO L124 PetriNetUnfolderBase]: 77/278 cut-off events. [2025-03-15 03:08:06,871 INFO L125 PetriNetUnfolderBase]: For 903/1179 co-relation queries the response was YES. [2025-03-15 03:08:06,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 278 events. 77/278 cut-off events. For 903/1179 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1288 event pairs, 13 based on Foata normal form. 9/234 useless extension candidates. Maximal degree in co-relation 891. Up to 89 conditions per place. [2025-03-15 03:08:06,874 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 38 selfloop transitions, 14 changer transitions 12/126 dead transitions. [2025-03-15 03:08:06,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 126 transitions, 1020 flow [2025-03-15 03:08:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-15 03:08:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-15 03:08:06,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 306 transitions. [2025-03-15 03:08:06,878 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.85 [2025-03-15 03:08:06,879 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 16 predicate places. [2025-03-15 03:08:06,879 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 126 transitions, 1020 flow [2025-03-15 03:08:06,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,879 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:06,879 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] [2025-03-15 03:08:06,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-15 03:08:06,880 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:06,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:06,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1236474379, now seen corresponding path program 1 times [2025-03-15 03:08:06,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:06,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93132478] [2025-03-15 03:08:06,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:06,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:06,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93132478] [2025-03-15 03:08:06,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93132478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:06,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:06,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:06,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137246252] [2025-03-15 03:08:06,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:06,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:06,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:06,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:06,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:06,974 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 90 [2025-03-15 03:08:06,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 126 transitions, 1020 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:06,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:06,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 90 [2025-03-15 03:08:06,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:07,098 INFO L124 PetriNetUnfolderBase]: 102/309 cut-off events. [2025-03-15 03:08:07,099 INFO L125 PetriNetUnfolderBase]: For 1210/1485 co-relation queries the response was YES. [2025-03-15 03:08:07,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1465 conditions, 309 events. 102/309 cut-off events. For 1210/1485 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1306 event pairs, 13 based on Foata normal form. 10/257 useless extension candidates. Maximal degree in co-relation 1225. Up to 112 conditions per place. [2025-03-15 03:08:07,102 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 41 selfloop transitions, 35 changer transitions 12/141 dead transitions. [2025-03-15 03:08:07,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 141 transitions, 1368 flow [2025-03-15 03:08:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:08:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:08:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 463 transitions. [2025-03-15 03:08:07,103 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.734920634920635 [2025-03-15 03:08:07,104 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 22 predicate places. [2025-03-15 03:08:07,104 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 141 transitions, 1368 flow [2025-03-15 03:08:07,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,104 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:07,105 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] [2025-03-15 03:08:07,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-15 03:08:07,105 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:07,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash 324001178, now seen corresponding path program 1 times [2025-03-15 03:08:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:07,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133674485] [2025-03-15 03:08:07,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:07,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:07,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:07,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:07,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133674485] [2025-03-15 03:08:07,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133674485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:07,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:07,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:07,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002483145] [2025-03-15 03:08:07,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:07,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:07,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:07,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:07,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:07,173 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 90 [2025-03-15 03:08:07,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 141 transitions, 1368 flow. Second operand has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:07,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 90 [2025-03-15 03:08:07,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:07,302 INFO L124 PetriNetUnfolderBase]: 112/312 cut-off events. [2025-03-15 03:08:07,302 INFO L125 PetriNetUnfolderBase]: For 2375/2998 co-relation queries the response was YES. [2025-03-15 03:08:07,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1695 conditions, 312 events. 112/312 cut-off events. For 2375/2998 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1400 event pairs, 12 based on Foata normal form. 3/258 useless extension candidates. Maximal degree in co-relation 1398. Up to 117 conditions per place. [2025-03-15 03:08:07,306 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 78 selfloop transitions, 12 changer transitions 12/151 dead transitions. [2025-03-15 03:08:07,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 151 transitions, 1728 flow [2025-03-15 03:08:07,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 03:08:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 03:08:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 377 transitions. [2025-03-15 03:08:07,308 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6981481481481482 [2025-03-15 03:08:07,309 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 26 predicate places. [2025-03-15 03:08:07,310 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 151 transitions, 1728 flow [2025-03-15 03:08:07,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.333333333333336) internal successors, (356), 6 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,310 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:07,310 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:07,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-15 03:08:07,310 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:07,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1454102200, now seen corresponding path program 1 times [2025-03-15 03:08:07,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:07,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656238863] [2025-03-15 03:08:07,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:07,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:07,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:07,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:07,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656238863] [2025-03-15 03:08:07,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656238863] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:07,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:07,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-15 03:08:07,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470126874] [2025-03-15 03:08:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:07,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-15 03:08:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:07,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-15 03:08:07,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-15 03:08:07,345 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 90 [2025-03-15 03:08:07,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 151 transitions, 1728 flow. Second operand has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:07,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 90 [2025-03-15 03:08:07,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:07,431 INFO L124 PetriNetUnfolderBase]: 109/306 cut-off events. [2025-03-15 03:08:07,431 INFO L125 PetriNetUnfolderBase]: For 2683/3337 co-relation queries the response was YES. [2025-03-15 03:08:07,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1837 conditions, 306 events. 109/306 cut-off events. For 2683/3337 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1332 event pairs, 9 based on Foata normal form. 9/267 useless extension candidates. Maximal degree in co-relation 1525. Up to 116 conditions per place. [2025-03-15 03:08:07,436 INFO L140 encePairwiseOnDemand]: 85/90 looper letters, 72 selfloop transitions, 8 changer transitions 12/154 dead transitions. [2025-03-15 03:08:07,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 154 transitions, 1968 flow [2025-03-15 03:08:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-15 03:08:07,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-15 03:08:07,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 356 transitions. [2025-03-15 03:08:07,438 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7911111111111111 [2025-03-15 03:08:07,438 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 29 predicate places. [2025-03-15 03:08:07,438 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 154 transitions, 1968 flow [2025-03-15 03:08:07,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,439 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:07,439 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:07,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-15 03:08:07,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:07,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1567191397, now seen corresponding path program 1 times [2025-03-15 03:08:07,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:07,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14055495] [2025-03-15 03:08:07,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:07,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:07,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:07,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14055495] [2025-03-15 03:08:07,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14055495] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:07,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:07,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-15 03:08:07,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211942201] [2025-03-15 03:08:07,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:07,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-15 03:08:07,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:07,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-15 03:08:07,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-15 03:08:07,668 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 90 [2025-03-15 03:08:07,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 154 transitions, 1968 flow. Second operand has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:07,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 90 [2025-03-15 03:08:07,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:07,934 INFO L124 PetriNetUnfolderBase]: 179/482 cut-off events. [2025-03-15 03:08:07,934 INFO L125 PetriNetUnfolderBase]: For 4168/4642 co-relation queries the response was YES. [2025-03-15 03:08:07,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3105 conditions, 482 events. 179/482 cut-off events. For 4168/4642 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2424 event pairs, 26 based on Foata normal form. 12/419 useless extension candidates. Maximal degree in co-relation 2431. Up to 168 conditions per place. [2025-03-15 03:08:07,945 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 83 selfloop transitions, 58 changer transitions 14/193 dead transitions. [2025-03-15 03:08:07,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 193 transitions, 2864 flow [2025-03-15 03:08:07,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-15 03:08:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-15 03:08:07,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 679 transitions. [2025-03-15 03:08:07,948 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6287037037037037 [2025-03-15 03:08:07,949 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 40 predicate places. [2025-03-15 03:08:07,949 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 193 transitions, 2864 flow [2025-03-15 03:08:07,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:07,949 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:07,950 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:07,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-15 03:08:07,950 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:07,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:07,951 INFO L85 PathProgramCache]: Analyzing trace with hash 112975080, now seen corresponding path program 1 times [2025-03-15 03:08:07,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:07,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970787969] [2025-03-15 03:08:07,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:07,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:08,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:08,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:08,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970787969] [2025-03-15 03:08:08,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970787969] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:08,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:08,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:08,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431448914] [2025-03-15 03:08:08,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:08,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:08,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:08,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:08,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:08,017 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2025-03-15 03:08:08,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 193 transitions, 2864 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:08,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2025-03-15 03:08:08,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:08,193 INFO L124 PetriNetUnfolderBase]: 191/500 cut-off events. [2025-03-15 03:08:08,193 INFO L125 PetriNetUnfolderBase]: For 4544/4993 co-relation queries the response was YES. [2025-03-15 03:08:08,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3681 conditions, 500 events. 191/500 cut-off events. For 4544/4993 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2496 event pairs, 12 based on Foata normal form. 16/433 useless extension candidates. Maximal degree in co-relation 2860. Up to 187 conditions per place. [2025-03-15 03:08:08,199 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 108 selfloop transitions, 65 changer transitions 16/235 dead transitions. [2025-03-15 03:08:08,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 235 transitions, 3944 flow [2025-03-15 03:08:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 567 transitions. [2025-03-15 03:08:08,201 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7875 [2025-03-15 03:08:08,202 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 47 predicate places. [2025-03-15 03:08:08,202 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 235 transitions, 3944 flow [2025-03-15 03:08:08,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,202 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:08,202 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:08,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-15 03:08:08,203 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:08,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:08,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1153449110, now seen corresponding path program 2 times [2025-03-15 03:08:08,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:08,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855995062] [2025-03-15 03:08:08,204 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:08,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:08,211 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:08:08,211 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:08,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:08,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:08,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855995062] [2025-03-15 03:08:08,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855995062] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:08,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:08,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:08,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813021680] [2025-03-15 03:08:08,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:08,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:08,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:08,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:08,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:08,268 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2025-03-15 03:08:08,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 235 transitions, 3944 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:08,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2025-03-15 03:08:08,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:08,444 INFO L124 PetriNetUnfolderBase]: 194/511 cut-off events. [2025-03-15 03:08:08,444 INFO L125 PetriNetUnfolderBase]: For 5389/5874 co-relation queries the response was YES. [2025-03-15 03:08:08,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4151 conditions, 511 events. 194/511 cut-off events. For 5389/5874 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2618 event pairs, 11 based on Foata normal form. 16/444 useless extension candidates. Maximal degree in co-relation 3149. Up to 197 conditions per place. [2025-03-15 03:08:08,450 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 112 selfloop transitions, 65 changer transitions 23/246 dead transitions. [2025-03-15 03:08:08,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 246 transitions, 4605 flow [2025-03-15 03:08:08,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:08,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:08,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 567 transitions. [2025-03-15 03:08:08,452 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7875 [2025-03-15 03:08:08,454 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 54 predicate places. [2025-03-15 03:08:08,454 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 246 transitions, 4605 flow [2025-03-15 03:08:08,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,454 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:08,454 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:08,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-15 03:08:08,455 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:08,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:08,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2022960505, now seen corresponding path program 2 times [2025-03-15 03:08:08,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:08,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283125612] [2025-03-15 03:08:08,455 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:08,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:08,466 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:08:08,467 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:08,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:08,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283125612] [2025-03-15 03:08:08,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283125612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:08,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:08,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-15 03:08:08,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134488504] [2025-03-15 03:08:08,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:08,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-15 03:08:08,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:08,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-15 03:08:08,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-15 03:08:08,612 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 90 [2025-03-15 03:08:08,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 246 transitions, 4605 flow. Second operand has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:08,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 90 [2025-03-15 03:08:08,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:08,889 INFO L124 PetriNetUnfolderBase]: 237/632 cut-off events. [2025-03-15 03:08:08,889 INFO L125 PetriNetUnfolderBase]: For 7723/8314 co-relation queries the response was YES. [2025-03-15 03:08:08,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5504 conditions, 632 events. 237/632 cut-off events. For 7723/8314 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3556 event pairs, 23 based on Foata normal form. 26/563 useless extension candidates. Maximal degree in co-relation 4189. Up to 237 conditions per place. [2025-03-15 03:08:08,897 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 126 selfloop transitions, 88 changer transitions 30/282 dead transitions. [2025-03-15 03:08:08,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 282 transitions, 5893 flow [2025-03-15 03:08:08,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 03:08:08,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 03:08:08,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 629 transitions. [2025-03-15 03:08:08,901 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6353535353535353 [2025-03-15 03:08:08,902 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 64 predicate places. [2025-03-15 03:08:08,902 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 282 transitions, 5893 flow [2025-03-15 03:08:08,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,903 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:08,903 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:08,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-15 03:08:08,903 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:08,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:08,903 INFO L85 PathProgramCache]: Analyzing trace with hash 614847720, now seen corresponding path program 3 times [2025-03-15 03:08:08,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:08,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11728287] [2025-03-15 03:08:08,904 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:08,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:08,914 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-15 03:08:08,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:08,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11728287] [2025-03-15 03:08:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11728287] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:08,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:08,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:08,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072235505] [2025-03-15 03:08:08,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:08,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:08,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:08,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:08,971 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2025-03-15 03:08:08,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 282 transitions, 5893 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:08,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:08,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2025-03-15 03:08:08,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:09,159 INFO L124 PetriNetUnfolderBase]: 232/630 cut-off events. [2025-03-15 03:08:09,159 INFO L125 PetriNetUnfolderBase]: For 8880/9567 co-relation queries the response was YES. [2025-03-15 03:08:09,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5927 conditions, 630 events. 232/630 cut-off events. For 8880/9567 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3510 event pairs, 16 based on Foata normal form. 14/550 useless extension candidates. Maximal degree in co-relation 4571. Up to 232 conditions per place. [2025-03-15 03:08:09,168 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 142 selfloop transitions, 84 changer transitions 32/304 dead transitions. [2025-03-15 03:08:09,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 304 transitions, 6866 flow [2025-03-15 03:08:09,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:09,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 565 transitions. [2025-03-15 03:08:09,170 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7847222222222222 [2025-03-15 03:08:09,171 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 69 predicate places. [2025-03-15 03:08:09,171 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 304 transitions, 6866 flow [2025-03-15 03:08:09,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:09,171 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:09,171 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:09,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-15 03:08:09,171 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:09,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:09,172 INFO L85 PathProgramCache]: Analyzing trace with hash 598270471, now seen corresponding path program 3 times [2025-03-15 03:08:09,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949560224] [2025-03-15 03:08:09,172 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:09,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:09,180 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-15 03:08:09,181 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:09,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:09,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949560224] [2025-03-15 03:08:09,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949560224] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:09,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:09,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-15 03:08:09,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485323462] [2025-03-15 03:08:09,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:09,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-15 03:08:09,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:09,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-15 03:08:09,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-15 03:08:09,309 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 90 [2025-03-15 03:08:09,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 304 transitions, 6866 flow. Second operand has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:09,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:09,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 90 [2025-03-15 03:08:09,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:09,566 INFO L124 PetriNetUnfolderBase]: 262/708 cut-off events. [2025-03-15 03:08:09,566 INFO L125 PetriNetUnfolderBase]: For 11579/12356 co-relation queries the response was YES. [2025-03-15 03:08:09,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7168 conditions, 708 events. 262/708 cut-off events. For 11579/12356 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4099 event pairs, 17 based on Foata normal form. 6/613 useless extension candidates. Maximal degree in co-relation 5472. Up to 255 conditions per place. [2025-03-15 03:08:09,575 INFO L140 encePairwiseOnDemand]: 78/90 looper letters, 171 selfloop transitions, 83 changer transitions 41/333 dead transitions. [2025-03-15 03:08:09,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 333 transitions, 8194 flow [2025-03-15 03:08:09,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 03:08:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 03:08:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 513 transitions. [2025-03-15 03:08:09,577 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-03-15 03:08:09,578 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 77 predicate places. [2025-03-15 03:08:09,578 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 333 transitions, 8194 flow [2025-03-15 03:08:09,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:09,578 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:09,578 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:09,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-15 03:08:09,578 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:09,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2137781346, now seen corresponding path program 1 times [2025-03-15 03:08:09,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:09,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944802294] [2025-03-15 03:08:09,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:09,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:09,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944802294] [2025-03-15 03:08:09,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944802294] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:09,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:09,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:09,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329873553] [2025-03-15 03:08:09,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:09,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:09,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:09,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:09,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:09,629 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2025-03-15 03:08:09,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 333 transitions, 8194 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:09,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:09,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2025-03-15 03:08:09,629 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:09,806 INFO L124 PetriNetUnfolderBase]: 262/708 cut-off events. [2025-03-15 03:08:09,806 INFO L125 PetriNetUnfolderBase]: For 12822/13685 co-relation queries the response was YES. [2025-03-15 03:08:09,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7649 conditions, 708 events. 262/708 cut-off events. For 12822/13685 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4155 event pairs, 20 based on Foata normal form. 14/624 useless extension candidates. Maximal degree in co-relation 5853. Up to 260 conditions per place. [2025-03-15 03:08:09,817 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 171 selfloop transitions, 78 changer transitions 43/338 dead transitions. [2025-03-15 03:08:09,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 338 transitions, 8925 flow [2025-03-15 03:08:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 03:08:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 03:08:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 433 transitions. [2025-03-15 03:08:09,819 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8018518518518518 [2025-03-15 03:08:09,820 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 82 predicate places. [2025-03-15 03:08:09,820 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 338 transitions, 8925 flow [2025-03-15 03:08:09,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:09,820 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:09,820 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:09,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-15 03:08:09,820 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:09,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:09,821 INFO L85 PathProgramCache]: Analyzing trace with hash 127765381, now seen corresponding path program 1 times [2025-03-15 03:08:09,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:09,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158412636] [2025-03-15 03:08:09,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:09,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:09,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:09,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158412636] [2025-03-15 03:08:09,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158412636] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:09,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:09,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-15 03:08:09,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299683892] [2025-03-15 03:08:09,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:09,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-15 03:08:09,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:09,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-15 03:08:09,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-15 03:08:09,954 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 90 [2025-03-15 03:08:09,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 338 transitions, 8925 flow. Second operand has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:09,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:09,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 90 [2025-03-15 03:08:09,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:10,217 INFO L124 PetriNetUnfolderBase]: 263/713 cut-off events. [2025-03-15 03:08:10,217 INFO L125 PetriNetUnfolderBase]: For 14229/15163 co-relation queries the response was YES. [2025-03-15 03:08:10,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8241 conditions, 713 events. 263/713 cut-off events. For 14229/15163 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4209 event pairs, 17 based on Foata normal form. 16/629 useless extension candidates. Maximal degree in co-relation 6324. Up to 264 conditions per place. [2025-03-15 03:08:10,232 INFO L140 encePairwiseOnDemand]: 77/90 looper letters, 172 selfloop transitions, 88 changer transitions 47/345 dead transitions. [2025-03-15 03:08:10,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 345 transitions, 9743 flow [2025-03-15 03:08:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 03:08:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 03:08:10,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 515 transitions. [2025-03-15 03:08:10,234 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2025-03-15 03:08:10,235 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 90 predicate places. [2025-03-15 03:08:10,235 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 345 transitions, 9743 flow [2025-03-15 03:08:10,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:10,235 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:10,235 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:10,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-15 03:08:10,235 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:10,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:10,236 INFO L85 PathProgramCache]: Analyzing trace with hash 615502020, now seen corresponding path program 2 times [2025-03-15 03:08:10,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:10,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344312250] [2025-03-15 03:08:10,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:10,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:10,243 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:08:10,243 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:10,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:10,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:10,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344312250] [2025-03-15 03:08:10,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344312250] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:10,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:10,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:10,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847265145] [2025-03-15 03:08:10,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:10,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:10,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:10,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:10,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:10,284 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2025-03-15 03:08:10,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 345 transitions, 9743 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:10,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:10,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2025-03-15 03:08:10,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:10,463 INFO L124 PetriNetUnfolderBase]: 264/734 cut-off events. [2025-03-15 03:08:10,464 INFO L125 PetriNetUnfolderBase]: For 16894/17897 co-relation queries the response was YES. [2025-03-15 03:08:10,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8910 conditions, 734 events. 264/734 cut-off events. For 16894/17897 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4418 event pairs, 15 based on Foata normal form. 15/647 useless extension candidates. Maximal degree in co-relation 6807. Up to 270 conditions per place. [2025-03-15 03:08:10,473 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 183 selfloop transitions, 69 changer transitions 53/351 dead transitions. [2025-03-15 03:08:10,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 351 transitions, 10551 flow [2025-03-15 03:08:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 03:08:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 03:08:10,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 430 transitions. [2025-03-15 03:08:10,475 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7962962962962963 [2025-03-15 03:08:10,476 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 95 predicate places. [2025-03-15 03:08:10,476 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 351 transitions, 10551 flow [2025-03-15 03:08:10,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:10,476 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:10,476 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:10,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-15 03:08:10,476 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:10,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:10,477 INFO L85 PathProgramCache]: Analyzing trace with hash 614848230, now seen corresponding path program 3 times [2025-03-15 03:08:10,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:10,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335597272] [2025-03-15 03:08:10,477 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:10,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:10,483 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-15 03:08:10,483 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:10,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:10,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335597272] [2025-03-15 03:08:10,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335597272] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:10,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:10,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:10,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70866437] [2025-03-15 03:08:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:10,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:10,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:10,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:10,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:10,524 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 90 [2025-03-15 03:08:10,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 351 transitions, 10551 flow. Second operand has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:10,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:10,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 90 [2025-03-15 03:08:10,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:10,731 INFO L124 PetriNetUnfolderBase]: 262/736 cut-off events. [2025-03-15 03:08:10,731 INFO L125 PetriNetUnfolderBase]: For 19240/20424 co-relation queries the response was YES. [2025-03-15 03:08:10,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9342 conditions, 736 events. 262/736 cut-off events. For 19240/20424 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4451 event pairs, 19 based on Foata normal form. 13/648 useless extension candidates. Maximal degree in co-relation 7134. Up to 267 conditions per place. [2025-03-15 03:08:10,741 INFO L140 encePairwiseOnDemand]: 83/90 looper letters, 175 selfloop transitions, 73 changer transitions 55/349 dead transitions. [2025-03-15 03:08:10,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 349 transitions, 11065 flow [2025-03-15 03:08:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-15 03:08:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-15 03:08:10,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 429 transitions. [2025-03-15 03:08:10,743 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2025-03-15 03:08:10,743 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 99 predicate places. [2025-03-15 03:08:10,743 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 349 transitions, 11065 flow [2025-03-15 03:08:10,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.83333333333333) internal successors, (389), 6 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:10,743 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:10,743 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:10,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-15 03:08:10,744 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:10,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash 614848231, now seen corresponding path program 2 times [2025-03-15 03:08:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:10,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085907990] [2025-03-15 03:08:10,744 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:10,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:10,752 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:08:10,752 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:10,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:10,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085907990] [2025-03-15 03:08:10,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085907990] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:10,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:10,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-15 03:08:10,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633687385] [2025-03-15 03:08:10,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:10,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-15 03:08:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:10,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-15 03:08:10,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-15 03:08:10,864 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 90 [2025-03-15 03:08:10,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 349 transitions, 11065 flow. Second operand has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:10,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:10,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 90 [2025-03-15 03:08:10,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:11,176 INFO L124 PetriNetUnfolderBase]: 264/749 cut-off events. [2025-03-15 03:08:11,176 INFO L125 PetriNetUnfolderBase]: For 21213/22540 co-relation queries the response was YES. [2025-03-15 03:08:11,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10036 conditions, 749 events. 264/749 cut-off events. For 21213/22540 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4594 event pairs, 15 based on Foata normal form. 17/665 useless extension candidates. Maximal degree in co-relation 7700. Up to 273 conditions per place. [2025-03-15 03:08:11,188 INFO L140 encePairwiseOnDemand]: 77/90 looper letters, 157 selfloop transitions, 98 changer transitions 63/356 dead transitions. [2025-03-15 03:08:11,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 356 transitions, 11947 flow [2025-03-15 03:08:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 03:08:11,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 03:08:11,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 625 transitions. [2025-03-15 03:08:11,189 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6313131313131313 [2025-03-15 03:08:11,190 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 109 predicate places. [2025-03-15 03:08:11,190 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 356 transitions, 11947 flow [2025-03-15 03:08:11,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:11,190 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:11,190 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:11,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-15 03:08:11,191 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:11,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:11,191 INFO L85 PathProgramCache]: Analyzing trace with hash 615502021, now seen corresponding path program 3 times [2025-03-15 03:08:11,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:11,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440275065] [2025-03-15 03:08:11,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:11,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:11,197 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-15 03:08:11,197 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:11,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:11,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440275065] [2025-03-15 03:08:11,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440275065] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:11,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:11,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-15 03:08:11,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741038725] [2025-03-15 03:08:11,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:11,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-15 03:08:11,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:11,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-15 03:08:11,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2025-03-15 03:08:11,316 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 90 [2025-03-15 03:08:11,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 356 transitions, 11947 flow. Second operand has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:11,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:11,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 90 [2025-03-15 03:08:11,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:11,578 INFO L124 PetriNetUnfolderBase]: 269/809 cut-off events. [2025-03-15 03:08:11,578 INFO L125 PetriNetUnfolderBase]: For 23412/24705 co-relation queries the response was YES. [2025-03-15 03:08:11,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11056 conditions, 809 events. 269/809 cut-off events. For 23412/24705 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 5204 event pairs, 19 based on Foata normal form. 20/719 useless extension candidates. Maximal degree in co-relation 8590. Up to 285 conditions per place. [2025-03-15 03:08:11,588 INFO L140 encePairwiseOnDemand]: 77/90 looper letters, 168 selfloop transitions, 99 changer transitions 68/373 dead transitions. [2025-03-15 03:08:11,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 373 transitions, 13253 flow [2025-03-15 03:08:11,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-15 03:08:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-15 03:08:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 623 transitions. [2025-03-15 03:08:11,590 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6292929292929293 [2025-03-15 03:08:11,590 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 119 predicate places. [2025-03-15 03:08:11,591 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 373 transitions, 13253 flow [2025-03-15 03:08:11,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:11,591 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:11,591 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:11,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-15 03:08:11,591 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:11,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:11,591 INFO L85 PathProgramCache]: Analyzing trace with hash -613226051, now seen corresponding path program 1 times [2025-03-15 03:08:11,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:11,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507791474] [2025-03-15 03:08:11,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:11,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:11,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:11,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507791474] [2025-03-15 03:08:11,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507791474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:11,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:11,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:11,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230216833] [2025-03-15 03:08:11,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:11,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:11,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:11,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:11,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:11,636 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 90 [2025-03-15 03:08:11,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 373 transitions, 13253 flow. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:11,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:11,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 90 [2025-03-15 03:08:11,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:11,849 INFO L124 PetriNetUnfolderBase]: 256/774 cut-off events. [2025-03-15 03:08:11,850 INFO L125 PetriNetUnfolderBase]: For 26019/27464 co-relation queries the response was YES. [2025-03-15 03:08:11,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10850 conditions, 774 events. 256/774 cut-off events. For 26019/27464 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4961 event pairs, 10 based on Foata normal form. 13/693 useless extension candidates. Maximal degree in co-relation 8317. Up to 272 conditions per place. [2025-03-15 03:08:11,860 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 96 selfloop transitions, 75 changer transitions 68/350 dead transitions. [2025-03-15 03:08:11,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 350 transitions, 12633 flow [2025-03-15 03:08:11,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:08:11,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:08:11,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 487 transitions. [2025-03-15 03:08:11,862 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.773015873015873 [2025-03-15 03:08:11,862 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 119 predicate places. [2025-03-15 03:08:11,862 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 350 transitions, 12633 flow [2025-03-15 03:08:11,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:11,862 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:11,863 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:11,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-15 03:08:11,863 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:11,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 2074824209, now seen corresponding path program 1 times [2025-03-15 03:08:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73563692] [2025-03-15 03:08:11,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:11,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:11,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:11,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:11,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73563692] [2025-03-15 03:08:11,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73563692] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:11,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:11,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:11,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118831994] [2025-03-15 03:08:11,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:11,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:11,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:11,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:11,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:11,895 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:11,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 350 transitions, 12633 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:11,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:11,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:11,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:12,201 INFO L124 PetriNetUnfolderBase]: 324/1137 cut-off events. [2025-03-15 03:08:12,201 INFO L125 PetriNetUnfolderBase]: For 39597/41845 co-relation queries the response was YES. [2025-03-15 03:08:12,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15520 conditions, 1137 events. 324/1137 cut-off events. For 39597/41845 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8402 event pairs, 10 based on Foata normal form. 43/1058 useless extension candidates. Maximal degree in co-relation 11570. Up to 420 conditions per place. [2025-03-15 03:08:12,216 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 263 selfloop transitions, 74 changer transitions 90/474 dead transitions. [2025-03-15 03:08:12,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 474 transitions, 18576 flow [2025-03-15 03:08:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:12,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 581 transitions. [2025-03-15 03:08:12,217 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8069444444444445 [2025-03-15 03:08:12,218 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 126 predicate places. [2025-03-15 03:08:12,218 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 474 transitions, 18576 flow [2025-03-15 03:08:12,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:12,218 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:12,218 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:12,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-15 03:08:12,218 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:12,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:12,219 INFO L85 PathProgramCache]: Analyzing trace with hash -789534815, now seen corresponding path program 2 times [2025-03-15 03:08:12,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:12,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611625639] [2025-03-15 03:08:12,219 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:12,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:12,225 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 03:08:12,225 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:12,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:12,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611625639] [2025-03-15 03:08:12,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611625639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:12,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:12,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:12,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356839146] [2025-03-15 03:08:12,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:12,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:12,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:12,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:12,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:12,250 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:12,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 474 transitions, 18576 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:12,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:12,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:12,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:12,522 INFO L124 PetriNetUnfolderBase]: 321/1134 cut-off events. [2025-03-15 03:08:12,522 INFO L125 PetriNetUnfolderBase]: For 41786/43757 co-relation queries the response was YES. [2025-03-15 03:08:12,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16172 conditions, 1134 events. 321/1134 cut-off events. For 41786/43757 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8333 event pairs, 10 based on Foata normal form. 51/1063 useless extension candidates. Maximal degree in co-relation 12219. Up to 414 conditions per place. [2025-03-15 03:08:12,536 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 275 selfloop transitions, 48 changer transitions 103/473 dead transitions. [2025-03-15 03:08:12,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 473 transitions, 19365 flow [2025-03-15 03:08:12,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:08:12,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:08:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 498 transitions. [2025-03-15 03:08:12,538 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2025-03-15 03:08:12,538 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 132 predicate places. [2025-03-15 03:08:12,538 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 473 transitions, 19365 flow [2025-03-15 03:08:12,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:12,538 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:12,538 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:12,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-15 03:08:12,538 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:12,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:12,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1332893473, now seen corresponding path program 1 times [2025-03-15 03:08:12,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:12,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478148839] [2025-03-15 03:08:12,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:12,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:12,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:12,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:12,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478148839] [2025-03-15 03:08:12,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478148839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:12,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:12,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:12,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120866614] [2025-03-15 03:08:12,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:12,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:12,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:12,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:12,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:12,566 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:12,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 473 transitions, 19365 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:12,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:12,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:12,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:12,889 INFO L124 PetriNetUnfolderBase]: 323/1148 cut-off events. [2025-03-15 03:08:12,889 INFO L125 PetriNetUnfolderBase]: For 47891/49953 co-relation queries the response was YES. [2025-03-15 03:08:12,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16974 conditions, 1148 events. 323/1148 cut-off events. For 47891/49953 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8411 event pairs, 11 based on Foata normal form. 30/1065 useless extension candidates. Maximal degree in co-relation 12843. Up to 417 conditions per place. [2025-03-15 03:08:12,904 INFO L140 encePairwiseOnDemand]: 80/90 looper letters, 242 selfloop transitions, 106 changer transitions 103/498 dead transitions. [2025-03-15 03:08:12,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 498 transitions, 21252 flow [2025-03-15 03:08:12,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 03:08:12,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 03:08:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 632 transitions. [2025-03-15 03:08:12,907 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7802469135802469 [2025-03-15 03:08:12,907 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 140 predicate places. [2025-03-15 03:08:12,907 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 498 transitions, 21252 flow [2025-03-15 03:08:12,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:12,907 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:12,907 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:12,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-15 03:08:12,908 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:12,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:12,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1252757159, now seen corresponding path program 1 times [2025-03-15 03:08:12,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:12,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740414204] [2025-03-15 03:08:12,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:12,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:12,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:12,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740414204] [2025-03-15 03:08:12,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740414204] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:12,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:12,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:12,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413395752] [2025-03-15 03:08:12,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:12,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:12,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:12,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:12,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:12,943 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:12,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 498 transitions, 21252 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:12,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:12,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:12,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:13,302 INFO L124 PetriNetUnfolderBase]: 346/1216 cut-off events. [2025-03-15 03:08:13,302 INFO L125 PetriNetUnfolderBase]: For 56611/58809 co-relation queries the response was YES. [2025-03-15 03:08:13,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18673 conditions, 1216 events. 346/1216 cut-off events. For 56611/58809 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9113 event pairs, 11 based on Foata normal form. 44/1144 useless extension candidates. Maximal degree in co-relation 13922. Up to 453 conditions per place. [2025-03-15 03:08:13,320 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 300 selfloop transitions, 68 changer transitions 105/520 dead transitions. [2025-03-15 03:08:13,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 520 transitions, 23238 flow [2025-03-15 03:08:13,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:13,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:13,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 576 transitions. [2025-03-15 03:08:13,321 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8 [2025-03-15 03:08:13,322 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 147 predicate places. [2025-03-15 03:08:13,322 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 520 transitions, 23238 flow [2025-03-15 03:08:13,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:13,322 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:13,322 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:13,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-15 03:08:13,322 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:13,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:13,323 INFO L85 PathProgramCache]: Analyzing trace with hash -350008671, now seen corresponding path program 2 times [2025-03-15 03:08:13,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:13,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553119662] [2025-03-15 03:08:13,323 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:13,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:13,330 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:08:13,330 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:13,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:13,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553119662] [2025-03-15 03:08:13,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553119662] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:13,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:13,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:13,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936522057] [2025-03-15 03:08:13,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:13,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:13,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:13,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:13,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:13,358 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:13,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 520 transitions, 23238 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:13,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:13,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:13,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:13,722 INFO L124 PetriNetUnfolderBase]: 354/1244 cut-off events. [2025-03-15 03:08:13,722 INFO L125 PetriNetUnfolderBase]: For 64889/66852 co-relation queries the response was YES. [2025-03-15 03:08:13,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19806 conditions, 1244 events. 354/1244 cut-off events. For 64889/66852 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9419 event pairs, 9 based on Foata normal form. 30/1162 useless extension candidates. Maximal degree in co-relation 17777. Up to 468 conditions per place. [2025-03-15 03:08:13,743 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 295 selfloop transitions, 92 changer transitions 105/539 dead transitions. [2025-03-15 03:08:13,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 539 transitions, 25085 flow [2025-03-15 03:08:13,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:13,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:13,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2025-03-15 03:08:13,745 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8013888888888889 [2025-03-15 03:08:13,745 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 154 predicate places. [2025-03-15 03:08:13,745 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 539 transitions, 25085 flow [2025-03-15 03:08:13,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:13,745 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:13,745 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:13,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-15 03:08:13,746 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:13,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:13,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1905116039, now seen corresponding path program 3 times [2025-03-15 03:08:13,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:13,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974811545] [2025-03-15 03:08:13,746 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:13,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:13,756 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-15 03:08:13,756 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:13,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:13,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974811545] [2025-03-15 03:08:13,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974811545] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:13,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:13,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311686078] [2025-03-15 03:08:13,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:13,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:13,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:13,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:13,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:13,782 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:13,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 539 transitions, 25085 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:13,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:13,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:13,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:14,143 INFO L124 PetriNetUnfolderBase]: 327/1142 cut-off events. [2025-03-15 03:08:14,143 INFO L125 PetriNetUnfolderBase]: For 61695/63959 co-relation queries the response was YES. [2025-03-15 03:08:14,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18928 conditions, 1142 events. 327/1142 cut-off events. For 61695/63959 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 8394 event pairs, 12 based on Foata normal form. 33/1075 useless extension candidates. Maximal degree in co-relation 14591. Up to 407 conditions per place. [2025-03-15 03:08:14,156 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 292 selfloop transitions, 64 changer transitions 101/504 dead transitions. [2025-03-15 03:08:14,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 504 transitions, 24078 flow [2025-03-15 03:08:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:14,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 572 transitions. [2025-03-15 03:08:14,157 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7944444444444444 [2025-03-15 03:08:14,158 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 161 predicate places. [2025-03-15 03:08:14,158 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 504 transitions, 24078 flow [2025-03-15 03:08:14,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:14,158 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:14,158 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:14,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-15 03:08:14,158 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:14,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:14,159 INFO L85 PathProgramCache]: Analyzing trace with hash 978537701, now seen corresponding path program 4 times [2025-03-15 03:08:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:14,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084508490] [2025-03-15 03:08:14,159 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-15 03:08:14,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:14,164 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-15 03:08:14,164 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:14,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:14,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:14,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084508490] [2025-03-15 03:08:14,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084508490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:14,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:14,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-15 03:08:14,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078471957] [2025-03-15 03:08:14,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:14,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-15 03:08:14,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:14,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-15 03:08:14,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-15 03:08:14,194 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:14,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 504 transitions, 24078 flow. Second operand has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:14,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:14,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:14,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:14,554 INFO L124 PetriNetUnfolderBase]: 377/1390 cut-off events. [2025-03-15 03:08:14,554 INFO L125 PetriNetUnfolderBase]: For 83818/86922 co-relation queries the response was YES. [2025-03-15 03:08:14,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23507 conditions, 1390 events. 377/1390 cut-off events. For 83818/86922 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 10721 event pairs, 13 based on Foata normal form. 32/1305 useless extension candidates. Maximal degree in co-relation 17541. Up to 508 conditions per place. [2025-03-15 03:08:14,574 INFO L140 encePairwiseOnDemand]: 81/90 looper letters, 298 selfloop transitions, 124 changer transitions 117/586 dead transitions. [2025-03-15 03:08:14,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 586 transitions, 29461 flow [2025-03-15 03:08:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-15 03:08:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-15 03:08:14,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 630 transitions. [2025-03-15 03:08:14,575 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2025-03-15 03:08:14,577 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 169 predicate places. [2025-03-15 03:08:14,577 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 586 transitions, 29461 flow [2025-03-15 03:08:14,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.66666666666667) internal successors, (388), 6 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:14,577 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:14,577 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:14,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-15 03:08:14,577 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:14,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:14,578 INFO L85 PathProgramCache]: Analyzing trace with hash -578705541, now seen corresponding path program 3 times [2025-03-15 03:08:14,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:14,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939004473] [2025-03-15 03:08:14,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:14,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:14,584 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-15 03:08:14,584 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:14,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:14,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939004473] [2025-03-15 03:08:14,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939004473] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:14,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:14,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:14,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567487574] [2025-03-15 03:08:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:14,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:14,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:14,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:14,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:14,606 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:14,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 586 transitions, 29461 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:14,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:14,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:14,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:14,967 INFO L124 PetriNetUnfolderBase]: 377/1391 cut-off events. [2025-03-15 03:08:14,967 INFO L125 PetriNetUnfolderBase]: For 86821/89326 co-relation queries the response was YES. [2025-03-15 03:08:14,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24293 conditions, 1391 events. 377/1391 cut-off events. For 86821/89326 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 10687 event pairs, 13 based on Foata normal form. 46/1321 useless extension candidates. Maximal degree in co-relation 18168. Up to 507 conditions per place. [2025-03-15 03:08:14,988 INFO L140 encePairwiseOnDemand]: 84/90 looper letters, 361 selfloop transitions, 52 changer transitions 126/586 dead transitions. [2025-03-15 03:08:14,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 586 transitions, 30527 flow [2025-03-15 03:08:14,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-15 03:08:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-15 03:08:14,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2025-03-15 03:08:14,989 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7873015873015873 [2025-03-15 03:08:14,990 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 175 predicate places. [2025-03-15 03:08:14,990 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 586 transitions, 30527 flow [2025-03-15 03:08:14,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:14,990 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:14,990 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:14,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-15 03:08:14,990 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:14,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash -716148819, now seen corresponding path program 4 times [2025-03-15 03:08:14,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:14,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701278680] [2025-03-15 03:08:14,991 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-15 03:08:14,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:14,997 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-15 03:08:14,997 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:15,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:15,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701278680] [2025-03-15 03:08:15,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701278680] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:15,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:15,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:15,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393757555] [2025-03-15 03:08:15,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:15,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:15,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:15,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:15,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:15,026 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:15,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 586 transitions, 30527 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:15,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:15,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:15,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:15,437 INFO L124 PetriNetUnfolderBase]: 363/1336 cut-off events. [2025-03-15 03:08:15,437 INFO L125 PetriNetUnfolderBase]: For 91121/93527 co-relation queries the response was YES. [2025-03-15 03:08:15,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24397 conditions, 1336 events. 363/1336 cut-off events. For 91121/93527 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10177 event pairs, 10 based on Foata normal form. 35/1273 useless extension candidates. Maximal degree in co-relation 21903. Up to 482 conditions per place. [2025-03-15 03:08:15,459 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 306 selfloop transitions, 91 changer transitions 121/565 dead transitions. [2025-03-15 03:08:15,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 565 transitions, 30323 flow [2025-03-15 03:08:15,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:15,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:15,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 578 transitions. [2025-03-15 03:08:15,460 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8027777777777778 [2025-03-15 03:08:15,461 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 182 predicate places. [2025-03-15 03:08:15,461 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 565 transitions, 30323 flow [2025-03-15 03:08:15,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:15,462 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:15,462 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:15,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-15 03:08:15,462 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:15,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -364401883, now seen corresponding path program 5 times [2025-03-15 03:08:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032987087] [2025-03-15 03:08:15,463 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-15 03:08:15,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:15,470 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 03:08:15,470 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:15,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:15,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032987087] [2025-03-15 03:08:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032987087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:15,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591846445] [2025-03-15 03:08:15,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:15,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:15,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:15,494 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:15,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:15,495 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:15,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 565 transitions, 30323 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:15,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:15,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:15,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:15,925 INFO L124 PetriNetUnfolderBase]: 347/1252 cut-off events. [2025-03-15 03:08:15,925 INFO L125 PetriNetUnfolderBase]: For 93163/95235 co-relation queries the response was YES. [2025-03-15 03:08:15,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23725 conditions, 1252 events. 347/1252 cut-off events. For 93163/95235 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 9319 event pairs, 10 based on Foata normal form. 28/1192 useless extension candidates. Maximal degree in co-relation 21375. Up to 435 conditions per place. [2025-03-15 03:08:15,946 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 303 selfloop transitions, 65 changer transitions 116/531 dead transitions. [2025-03-15 03:08:15,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 531 transitions, 29215 flow [2025-03-15 03:08:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:15,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:15,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 569 transitions. [2025-03-15 03:08:15,948 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7902777777777777 [2025-03-15 03:08:15,948 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 189 predicate places. [2025-03-15 03:08:15,948 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 531 transitions, 29215 flow [2025-03-15 03:08:15,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:15,948 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:15,948 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:15,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-15 03:08:15,948 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:15,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1576291059, now seen corresponding path program 5 times [2025-03-15 03:08:15,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:15,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026165236] [2025-03-15 03:08:15,949 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-15 03:08:15,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:15,954 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:08:15,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:15,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:15,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026165236] [2025-03-15 03:08:15,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026165236] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:15,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:15,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:15,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32963798] [2025-03-15 03:08:15,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:15,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:15,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:15,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:15,977 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:15,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 531 transitions, 29215 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:15,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:15,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:15,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:16,373 INFO L124 PetriNetUnfolderBase]: 322/1176 cut-off events. [2025-03-15 03:08:16,374 INFO L125 PetriNetUnfolderBase]: For 91960/94114 co-relation queries the response was YES. [2025-03-15 03:08:16,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22864 conditions, 1176 events. 322/1176 cut-off events. For 91960/94114 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 8635 event pairs, 12 based on Foata normal form. 27/1128 useless extension candidates. Maximal degree in co-relation 17454. Up to 396 conditions per place. [2025-03-15 03:08:16,394 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 254 selfloop transitions, 93 changer transitions 111/505 dead transitions. [2025-03-15 03:08:16,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 505 transitions, 28462 flow [2025-03-15 03:08:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:16,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:16,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2025-03-15 03:08:16,395 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.8013888888888889 [2025-03-15 03:08:16,396 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 196 predicate places. [2025-03-15 03:08:16,396 INFO L471 AbstractCegarLoop]: Abstraction has has 289 places, 505 transitions, 28462 flow [2025-03-15 03:08:16,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:16,396 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:16,396 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:16,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-15 03:08:16,396 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:16,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash 287969087, now seen corresponding path program 6 times [2025-03-15 03:08:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:16,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426972882] [2025-03-15 03:08:16,397 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-15 03:08:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:16,405 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-03-15 03:08:16,405 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426972882] [2025-03-15 03:08:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426972882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:08:16,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:08:16,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-15 03:08:16,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573582102] [2025-03-15 03:08:16,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:08:16,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-15 03:08:16,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:16,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-15 03:08:16,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-15 03:08:16,428 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 90 [2025-03-15 03:08:16,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 505 transitions, 28462 flow. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:16,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:16,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 90 [2025-03-15 03:08:16,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:16,773 INFO L124 PetriNetUnfolderBase]: 292/1069 cut-off events. [2025-03-15 03:08:16,773 INFO L125 PetriNetUnfolderBase]: For 85899/87557 co-relation queries the response was YES. [2025-03-15 03:08:16,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21332 conditions, 1069 events. 292/1069 cut-off events. For 85899/87557 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7608 event pairs, 12 based on Foata normal form. 7/1014 useless extension candidates. Maximal degree in co-relation 16893. Up to 329 conditions per place. [2025-03-15 03:08:16,789 INFO L140 encePairwiseOnDemand]: 82/90 looper letters, 253 selfloop transitions, 57 changer transitions 107/464 dead transitions. [2025-03-15 03:08:16,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 464 transitions, 26587 flow [2025-03-15 03:08:16,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-15 03:08:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-15 03:08:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 564 transitions. [2025-03-15 03:08:16,791 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.7833333333333333 [2025-03-15 03:08:16,791 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 203 predicate places. [2025-03-15 03:08:16,791 INFO L471 AbstractCegarLoop]: Abstraction has has 296 places, 464 transitions, 26587 flow [2025-03-15 03:08:16,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:16,791 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:16,791 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:16,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-15 03:08:16,792 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:16,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:16,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1727508935, now seen corresponding path program 1 times [2025-03-15 03:08:16,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:16,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636567590] [2025-03-15 03:08:16,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:16,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:16,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636567590] [2025-03-15 03:08:16,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636567590] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:08:16,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121312625] [2025-03-15 03:08:16,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:16,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:08:16,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:08:16,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-15 03:08:16,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-15 03:08:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:16,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-15 03:08:16,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:08:17,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:17,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:08:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:17,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121312625] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:08:17,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:08:17,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-15 03:08:17,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498810221] [2025-03-15 03:08:17,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:08:17,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-15 03:08:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:17,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-15 03:08:17,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=673, Unknown=0, NotChecked=0, Total=812 [2025-03-15 03:08:17,350 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:08:17,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 464 transitions, 26587 flow. Second operand has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:17,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:17,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:08:17,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:24,597 INFO L124 PetriNetUnfolderBase]: 2442/5571 cut-off events. [2025-03-15 03:08:24,598 INFO L125 PetriNetUnfolderBase]: For 578318/581871 co-relation queries the response was YES. [2025-03-15 03:08:24,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114689 conditions, 5571 events. 2442/5571 cut-off events. For 578318/581871 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 42287 event pairs, 48 based on Foata normal form. 59/5273 useless extension candidates. Maximal degree in co-relation 99065. Up to 2182 conditions per place. [2025-03-15 03:08:24,709 INFO L140 encePairwiseOnDemand]: 73/90 looper letters, 930 selfloop transitions, 1221 changer transitions 192/2377 dead transitions. [2025-03-15 03:08:24,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 2377 transitions, 128686 flow [2025-03-15 03:08:24,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2025-03-15 03:08:24,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2025-03-15 03:08:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 12482 transitions. [2025-03-15 03:08:24,719 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6163950617283951 [2025-03-15 03:08:24,720 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 427 predicate places. [2025-03-15 03:08:24,720 INFO L471 AbstractCegarLoop]: Abstraction has has 520 places, 2377 transitions, 128686 flow [2025-03-15 03:08:24,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:24,721 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:24,721 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:24,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-15 03:08:24,921 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,SelfDestructingSolverStorable34 [2025-03-15 03:08:24,921 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:24,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:24,922 INFO L85 PathProgramCache]: Analyzing trace with hash 764658679, now seen corresponding path program 1 times [2025-03-15 03:08:24,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:24,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421597463] [2025-03-15 03:08:24,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:24,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:25,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:25,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421597463] [2025-03-15 03:08:25,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421597463] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:08:25,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753961879] [2025-03-15 03:08:25,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-15 03:08:25,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:08:25,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:08:25,018 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) [2025-03-15 03:08:25,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-15 03:08:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-15 03:08:25,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-15 03:08:25,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:08:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:25,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:08:25,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:25,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753961879] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:08:25,447 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:08:25,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-15 03:08:25,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985136764] [2025-03-15 03:08:25,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:08:25,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-15 03:08:25,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:25,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-15 03:08:25,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2025-03-15 03:08:25,449 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:08:25,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 520 places, 2377 transitions, 128686 flow. Second operand has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:25,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:25,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:08:25,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:33,520 INFO L124 PetriNetUnfolderBase]: 2709/6291 cut-off events. [2025-03-15 03:08:33,520 INFO L125 PetriNetUnfolderBase]: For 629295/632399 co-relation queries the response was YES. [2025-03-15 03:08:33,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133459 conditions, 6291 events. 2709/6291 cut-off events. For 629295/632399 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 50045 event pairs, 35 based on Foata normal form. 63/5946 useless extension candidates. Maximal degree in co-relation 127562. Up to 2378 conditions per place. [2025-03-15 03:08:33,661 INFO L140 encePairwiseOnDemand]: 74/90 looper letters, 1299 selfloop transitions, 1217 changer transitions 241/2791 dead transitions. [2025-03-15 03:08:33,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 668 places, 2791 transitions, 151618 flow [2025-03-15 03:08:33,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2025-03-15 03:08:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2025-03-15 03:08:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 8315 transitions. [2025-03-15 03:08:33,667 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6200596569724086 [2025-03-15 03:08:33,668 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 575 predicate places. [2025-03-15 03:08:33,668 INFO L471 AbstractCegarLoop]: Abstraction has has 668 places, 2791 transitions, 151618 flow [2025-03-15 03:08:33,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:33,669 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:33,669 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:33,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-15 03:08:33,873 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,SelfDestructingSolverStorable35 [2025-03-15 03:08:33,873 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:33,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:33,874 INFO L85 PathProgramCache]: Analyzing trace with hash 411978649, now seen corresponding path program 2 times [2025-03-15 03:08:33,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:33,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575762368] [2025-03-15 03:08:33,874 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:33,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:33,879 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 03:08:33,880 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:33,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575762368] [2025-03-15 03:08:33,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575762368] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:08:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064855038] [2025-03-15 03:08:33,965 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:08:33,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:08:33,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:08:33,967 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) [2025-03-15 03:08:33,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-15 03:08:34,005 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 03:08:34,006 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:34,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-15 03:08:34,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:08:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:34,160 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:08:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:34,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064855038] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:08:34,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:08:34,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-15 03:08:34,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274640785] [2025-03-15 03:08:34,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:08:34,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-15 03:08:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:34,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-15 03:08:34,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=682, Unknown=0, NotChecked=0, Total=812 [2025-03-15 03:08:34,316 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:08:34,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 668 places, 2791 transitions, 151618 flow. Second operand has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:34,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:34,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:08:34,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:08:50,509 INFO L124 PetriNetUnfolderBase]: 6311/13961 cut-off events. [2025-03-15 03:08:50,509 INFO L125 PetriNetUnfolderBase]: For 1488497/1496873 co-relation queries the response was YES. [2025-03-15 03:08:50,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 306596 conditions, 13961 events. 6311/13961 cut-off events. For 1488497/1496873 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 125696 event pairs, 126 based on Foata normal form. 134/13050 useless extension candidates. Maximal degree in co-relation 276565. Up to 4998 conditions per place. [2025-03-15 03:08:50,860 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 3102 selfloop transitions, 3236 changer transitions 459/6831 dead transitions. [2025-03-15 03:08:50,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 834 places, 6831 transitions, 363018 flow [2025-03-15 03:08:50,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2025-03-15 03:08:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2025-03-15 03:08:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 9337 transitions. [2025-03-15 03:08:50,867 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6212242182302062 [2025-03-15 03:08:50,867 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 741 predicate places. [2025-03-15 03:08:50,867 INFO L471 AbstractCegarLoop]: Abstraction has has 834 places, 6831 transitions, 363018 flow [2025-03-15 03:08:50,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:50,869 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:08:50,869 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:08:50,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-15 03:08:51,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:08:51,070 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:08:51,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:08:51,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1585003333, now seen corresponding path program 3 times [2025-03-15 03:08:51,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:08:51,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496942623] [2025-03-15 03:08:51,071 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:51,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:08:51,076 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-15 03:08:51,076 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:51,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:51,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:08:51,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496942623] [2025-03-15 03:08:51,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496942623] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:08:51,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804532239] [2025-03-15 03:08:51,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:08:51,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:08:51,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:08:51,268 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) [2025-03-15 03:08:51,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-15 03:08:51,307 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-15 03:08:51,307 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:08:51,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-15 03:08:51,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:08:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:51,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:08:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:08:51,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804532239] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:08:51,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:08:51,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-15 03:08:51,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228762906] [2025-03-15 03:08:51,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:08:51,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-15 03:08:51,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:08:51,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-15 03:08:51,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2025-03-15 03:08:51,645 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:08:51,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 834 places, 6831 transitions, 363018 flow. Second operand has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:08:51,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:08:51,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:08:51,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:09:46,012 INFO L124 PetriNetUnfolderBase]: 9472/21089 cut-off events. [2025-03-15 03:09:46,013 INFO L125 PetriNetUnfolderBase]: For 2348263/2359951 co-relation queries the response was YES. [2025-03-15 03:09:46,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490868 conditions, 21089 events. 9472/21089 cut-off events. For 2348263/2359951 co-relation queries the response was YES. Maximal size of possible extension queue 805. Compared 208150 event pairs, 142 based on Foata normal form. 316/19745 useless extension candidates. Maximal degree in co-relation 434473. Up to 7598 conditions per place. [2025-03-15 03:09:46,576 INFO L140 encePairwiseOnDemand]: 70/90 looper letters, 4727 selfloop transitions, 5189 changer transitions 812/10762 dead transitions. [2025-03-15 03:09:46,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 990 places, 10762 transitions, 592399 flow [2025-03-15 03:09:46,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2025-03-15 03:09:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2025-03-15 03:09:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 8764 transitions. [2025-03-15 03:09:46,582 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6202406227883935 [2025-03-15 03:09:46,583 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 897 predicate places. [2025-03-15 03:09:46,583 INFO L471 AbstractCegarLoop]: Abstraction has has 990 places, 10762 transitions, 592399 flow [2025-03-15 03:09:46,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:09:46,584 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:09:46,584 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:09:46,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-15 03:09:46,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-15 03:09:46,788 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:09:46,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:09:46,788 INFO L85 PathProgramCache]: Analyzing trace with hash -131959515, now seen corresponding path program 4 times [2025-03-15 03:09:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:09:46,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190313229] [2025-03-15 03:09:46,789 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-15 03:09:46,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:09:46,796 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2025-03-15 03:09:46,797 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:09:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:09:46,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:09:46,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190313229] [2025-03-15 03:09:46,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190313229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:09:46,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:09:46,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-15 03:09:46,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027251073] [2025-03-15 03:09:46,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:09:46,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-15 03:09:46,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:09:46,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-15 03:09:46,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-15 03:09:46,977 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:09:46,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 990 places, 10762 transitions, 592399 flow. Second operand has 11 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:09:46,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:09:46,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:09:46,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:11:37,386 INFO L124 PetriNetUnfolderBase]: 10921/23722 cut-off events. [2025-03-15 03:11:37,387 INFO L125 PetriNetUnfolderBase]: For 2659520/2672470 co-relation queries the response was YES. [2025-03-15 03:11:37,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581567 conditions, 23722 events. 10921/23722 cut-off events. For 2659520/2672470 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 232932 event pairs, 174 based on Foata normal form. 95/21836 useless extension candidates. Maximal degree in co-relation 499853. Up to 8457 conditions per place. [2025-03-15 03:11:38,246 INFO L140 encePairwiseOnDemand]: 75/90 looper letters, 8292 selfloop transitions, 3206 changer transitions 901/12433 dead transitions. [2025-03-15 03:11:38,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1017 places, 12433 transitions, 710642 flow [2025-03-15 03:11:38,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-15 03:11:38,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-03-15 03:11:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 1643 transitions. [2025-03-15 03:11:38,249 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.651984126984127 [2025-03-15 03:11:38,251 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 924 predicate places. [2025-03-15 03:11:38,251 INFO L471 AbstractCegarLoop]: Abstraction has has 1017 places, 12433 transitions, 710642 flow [2025-03-15 03:11:38,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:11:38,251 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:11:38,251 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:11:38,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-03-15 03:11:38,251 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:11:38,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:11:38,252 INFO L85 PathProgramCache]: Analyzing trace with hash 698806275, now seen corresponding path program 2 times [2025-03-15 03:11:38,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:11:38,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248312282] [2025-03-15 03:11:38,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:11:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:11:38,258 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 03:11:38,258 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:11:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:11:38,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:11:38,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248312282] [2025-03-15 03:11:38,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248312282] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:11:38,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420689040] [2025-03-15 03:11:38,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-15 03:11:38,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:11:38,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:11:38,357 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) [2025-03-15 03:11:38,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-15 03:11:38,399 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-15 03:11:38,399 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:11:38,400 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-15 03:11:38,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:11:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:11:38,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:11:38,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:11:38,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420689040] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:11:38,766 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:11:38,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-15 03:11:38,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510661744] [2025-03-15 03:11:38,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:11:38,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-15 03:11:38,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:11:38,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-15 03:11:38,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=676, Unknown=0, NotChecked=0, Total=812 [2025-03-15 03:11:38,768 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:11:38,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 12433 transitions, 710642 flow. Second operand has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:11:38,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:11:38,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:11:38,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:14:52,203 INFO L124 PetriNetUnfolderBase]: 17872/37970 cut-off events. [2025-03-15 03:14:52,203 INFO L125 PetriNetUnfolderBase]: For 4176663/4193682 co-relation queries the response was YES. [2025-03-15 03:14:52,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944068 conditions, 37970 events. 17872/37970 cut-off events. For 4176663/4193682 co-relation queries the response was YES. Maximal size of possible extension queue 1415. Compared 391871 event pairs, 207 based on Foata normal form. 245/35154 useless extension candidates. Maximal degree in co-relation 835121. Up to 14646 conditions per place. [2025-03-15 03:14:53,566 INFO L140 encePairwiseOnDemand]: 71/90 looper letters, 9327 selfloop transitions, 8621 changer transitions 1499/19481 dead transitions. [2025-03-15 03:14:53,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1150 places, 19481 transitions, 1121245 flow [2025-03-15 03:14:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2025-03-15 03:14:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2025-03-15 03:14:53,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 7569 transitions. [2025-03-15 03:14:53,592 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6276119402985074 [2025-03-15 03:14:53,593 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 1057 predicate places. [2025-03-15 03:14:53,593 INFO L471 AbstractCegarLoop]: Abstraction has has 1150 places, 19481 transitions, 1121245 flow [2025-03-15 03:14:53,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:14:53,597 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:14:53,597 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:14:53,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-15 03:14:53,803 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,SelfDestructingSolverStorable39 [2025-03-15 03:14:53,803 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:14:53,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:14:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1677997139, now seen corresponding path program 5 times [2025-03-15 03:14:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:14:53,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516359322] [2025-03-15 03:14:53,804 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-15 03:14:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:14:53,831 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-15 03:14:53,831 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:14:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:14:54,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:14:54,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516359322] [2025-03-15 03:14:54,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516359322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-15 03:14:54,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-15 03:14:54,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-15 03:14:54,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213516429] [2025-03-15 03:14:54,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-15 03:14:54,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-15 03:14:54,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:14:54,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-15 03:14:54,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-03-15 03:14:54,123 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:14:54,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1150 places, 19481 transitions, 1121245 flow. Second operand has 11 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:14:54,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:14:54,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:14:54,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-15 03:19:32,678 INFO L124 PetriNetUnfolderBase]: 18123/38486 cut-off events. [2025-03-15 03:19:32,679 INFO L125 PetriNetUnfolderBase]: For 4298830/4317316 co-relation queries the response was YES. [2025-03-15 03:19:32,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993137 conditions, 38486 events. 18123/38486 cut-off events. For 4298830/4317316 co-relation queries the response was YES. Maximal size of possible extension queue 1470. Compared 398196 event pairs, 202 based on Foata normal form. 119/35526 useless extension candidates. Maximal degree in co-relation 884788. Up to 14844 conditions per place. [2025-03-15 03:19:33,732 INFO L140 encePairwiseOnDemand]: 75/90 looper letters, 13261 selfloop transitions, 4926 changer transitions 1534/19755 dead transitions. [2025-03-15 03:19:33,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1175 places, 19755 transitions, 1175474 flow [2025-03-15 03:19:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-03-15 03:19:33,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2025-03-15 03:19:33,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1529 transitions. [2025-03-15 03:19:33,735 INFO L531 CegarLoopForPetriNet]: DFA transition density 0.6534188034188034 [2025-03-15 03:19:33,735 INFO L298 CegarLoopForPetriNet]: 93 programPoint places, 1082 predicate places. [2025-03-15 03:19:33,735 INFO L471 AbstractCegarLoop]: Abstraction has has 1175 places, 19755 transitions, 1175474 flow [2025-03-15 03:19:33,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 52.36363636363637) internal successors, (576), 11 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:19:33,736 INFO L213 CegarLoopForPetriNet]: Found error trace [2025-03-15 03:19:33,736 INFO L221 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:19:33,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-03-15 03:19:33,736 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-15 03:19:33,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-15 03:19:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash -638635853, now seen corresponding path program 3 times [2025-03-15 03:19:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-15 03:19:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061949010] [2025-03-15 03:19:33,737 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:19:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-15 03:19:33,753 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-15 03:19:33,753 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:19:33,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:19:33,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-15 03:19:33,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061949010] [2025-03-15 03:19:33,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061949010] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-15 03:19:33,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973147683] [2025-03-15 03:19:33,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-15 03:19:33,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:19:33,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-15 03:19:33,897 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) [2025-03-15 03:19:33,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-15 03:19:33,951 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-15 03:19:33,951 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2025-03-15 03:19:33,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-15 03:19:33,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-15 03:19:34,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:19:34,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-15 03:19:34,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-15 03:19:34,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973147683] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-15 03:19:34,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-15 03:19:34,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2025-03-15 03:19:34,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932588781] [2025-03-15 03:19:34,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-15 03:19:34,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-15 03:19:34,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-15 03:19:34,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-15 03:19:34,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2025-03-15 03:19:34,598 INFO L486 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 90 [2025-03-15 03:19:34,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1175 places, 19755 transitions, 1175474 flow. Second operand has 29 states, 29 states have (on average 52.62068965517241) internal successors, (1526), 29 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-15 03:19:34,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-15 03:19:34,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 90 [2025-03-15 03:19:34,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2025-03-15 03:21:32,326 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-15 03:21:32,326 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-03-15 03:21:32,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2025-03-15 03:21:32,397 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-03-15 03:21:32,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-15 03:21:32,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-15 03:21:32,601 WARN L596 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). [2025-03-15 03:21:32,603 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-15 03:21:32,604 INFO L782 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-15 03:21:32,605 INFO L422 BasicCegarLoop]: Path program histogram: [6, 5, 5, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-15 03:21:32,617 INFO L328 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-15 03:21:32,617 INFO L188 ceAbstractionStarter]: Computing trace abstraction results [2025-03-15 03:21:32,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 03:21:32 BasicIcfg [2025-03-15 03:21:32,626 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-15 03:21:32,627 INFO L158 Benchmark]: Toolchain (without parser) took 808038.70ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 43.7MB in the beginning and 608.4MB in the end (delta: -564.7MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2025-03-15 03:21:32,627 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:21:32,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.57ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 32.5MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-03-15 03:21:32,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.58ms. Allocated memory is still 71.3MB. Free memory was 32.5MB in the beginning and 31.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:21:32,629 INFO L158 Benchmark]: Boogie Preprocessor took 27.06ms. Allocated memory is still 71.3MB. Free memory was 31.2MB in the beginning and 30.5MB in the end (delta: 796.9kB). There was no memory consumed. Max. memory is 8.0GB. [2025-03-15 03:21:32,629 INFO L158 Benchmark]: RCFGBuilder took 343.81ms. Allocated memory is still 71.3MB. Free memory was 30.5MB in the beginning and 43.8MB in the end (delta: -13.4MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. [2025-03-15 03:21:32,631 INFO L158 Benchmark]: TraceAbstraction took 807442.67ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 42.9MB in the beginning and 608.4MB in the end (delta: -565.5MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2025-03-15 03:21:32,632 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory was 36.9MB in the beginning and 36.9MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 190.57ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 32.5MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.58ms. Allocated memory is still 71.3MB. Free memory was 32.5MB in the beginning and 31.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 27.06ms. Allocated memory is still 71.3MB. Free memory was 31.2MB in the beginning and 30.5MB in the end (delta: 796.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 343.81ms. Allocated memory is still 71.3MB. Free memory was 30.5MB in the beginning and 43.8MB in the end (delta: -13.4MB). Peak memory consumption was 19.2MB. Max. memory is 8.0GB. * TraceAbstraction took 807442.67ms. Allocated memory was 71.3MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 42.9MB in the beginning and 608.4MB in the end (delta: -565.5MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 56]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (29states, 50/90 universal loopers) in iteration 42,while PetriNetUnfolder was constructing finite prefix that currently has 377041 conditions, 14583 events (6306/14582 cut-off events. For 1578819/1589611 co-relation queries the response was YES. Maximal size of possible extension queue 1704. Compared 164243 event pairs, 48 based on Foata normal form. 135/15053 useless extension candidates. Maximal degree in co-relation 368487. Up to 4784 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 123 locations, 18 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: 807.3s, OverallIterations: 42, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 799.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7764 SdHoareTripleChecker+Valid, 8.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7764 mSDsluCounter, 4949 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4027 mSDsCounter, 794 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14877 IncrementalHoareTripleChecker+Invalid, 15671 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 794 mSolverCounterUnsat, 922 mSDtfsCounter, 14877 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1980 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 1394 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89354 ImplicationChecksByTransitivity, 19.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175474occurred in iteration=41, InterpolantAutomatonStates: 1145, 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, 5.7s InterpolantComputationTime, 2194 NumberOfCodeBlocks, 2194 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 2464 ConstructedInterpolants, 0 QuantifiedInterpolants, 9415 SizeOfPredicates, 42 NumberOfNonLiveVariables, 654 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 54 InterpolantComputations, 36 PerfectInterpolantSequences, 8/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown