./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/fibonacci.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:39:35,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:39:35,931 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:39:35,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:39:35,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:39:35,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:39:35,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:39:35,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:39:35,959 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:39:35,959 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:39:35,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:39:35,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:39:35,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:39:35,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:39:35,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:39:35,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:39:35,962 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:39:35,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:35,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:39:35,963 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:39:35,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:39:35,964 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e [2025-03-09 06:39:36,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:39:36,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:39:36,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:39:36,196 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:39:36,197 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:39:36,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/fibonacci.wvr.c [2025-03-09 06:39:37,377 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f69176c5/698d496e5ced4901981a4964ff0140c9/FLAG3b3a8a643 [2025-03-09 06:39:37,620 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:39:37,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/fibonacci.wvr.c [2025-03-09 06:39:37,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f69176c5/698d496e5ced4901981a4964ff0140c9/FLAG3b3a8a643 [2025-03-09 06:39:37,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f69176c5/698d496e5ced4901981a4964ff0140c9 [2025-03-09 06:39:37,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:39:37,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:39:37,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:37,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:39:37,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:39:37,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70516ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37, skipping insertion in model container [2025-03-09 06:39:37,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:39:37,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:37,824 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:39:37,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:37,858 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:39:37,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37 WrapperNode [2025-03-09 06:39:37,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:37,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:37,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:39:37,860 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:39:37,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,894 INFO L138 Inliner]: procedures = 22, calls = 19, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 216 [2025-03-09 06:39:37,895 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:37,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:39:37,896 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:39:37,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:39:37,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,905 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,922 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 06:39:37,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,926 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:39:37,930 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:39:37,930 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:39:37,930 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:39:37,931 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (1/1) ... [2025-03-09 06:39:37,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:37,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:39:37,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:39:37,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:39:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:39:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:39:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:39:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:39:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:39:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:39:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:39:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:39:37,987 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:39:38,049 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:39:38,050 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:39:38,333 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:39:38,334 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:39:38,519 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:39:38,519 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:39:38,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:38 BoogieIcfgContainer [2025-03-09 06:39:38,520 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:39:38,523 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:39:38,523 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:39:38,527 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:39:38,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:39:37" (1/3) ... [2025-03-09 06:39:38,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a78f2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:38, skipping insertion in model container [2025-03-09 06:39:38,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:37" (2/3) ... [2025-03-09 06:39:38,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a78f2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:38, skipping insertion in model container [2025-03-09 06:39:38,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:38" (3/3) ... [2025-03-09 06:39:38,530 INFO L128 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2025-03-09 06:39:38,547 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:39:38,549 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fibonacci.wvr.c that has 3 procedures, 87 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2025-03-09 06:39:38,550 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:39:38,634 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 06:39:38,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 96 transitions, 206 flow [2025-03-09 06:39:38,714 INFO L124 PetriNetUnfolderBase]: 10/94 cut-off events. [2025-03-09 06:39:38,717 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 06:39:38,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 10/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 312 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2025-03-09 06:39:38,721 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 96 transitions, 206 flow [2025-03-09 06:39:38,725 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 92 transitions, 193 flow [2025-03-09 06:39:38,732 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:39:38,743 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5fd7fa79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:39:38,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-03-09 06:39:38,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:39:38,751 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2025-03-09 06:39:38,751 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:39:38,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:38,752 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:39:38,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:38,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:38,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2140221991, now seen corresponding path program 1 times [2025-03-09 06:39:38,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:38,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15320263] [2025-03-09 06:39:38,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:38,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:38,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:39:38,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:39:38,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:38,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:38,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:38,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:38,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15320263] [2025-03-09 06:39:38,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15320263] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:38,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:38,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:38,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231479369] [2025-03-09 06:39:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:38,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:38,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:38,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:38,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:39,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2025-03-09 06:39:39,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 92 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:39,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:39,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2025-03-09 06:39:39,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:39,359 INFO L124 PetriNetUnfolderBase]: 755/1896 cut-off events. [2025-03-09 06:39:39,359 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-09 06:39:39,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3064 conditions, 1896 events. 755/1896 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 13351 event pairs, 282 based on Foata normal form. 60/1535 useless extension candidates. Maximal degree in co-relation 2988. Up to 626 conditions per place. [2025-03-09 06:39:39,379 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 50 selfloop transitions, 3 changer transitions 0/107 dead transitions. [2025-03-09 06:39:39,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 107 transitions, 332 flow [2025-03-09 06:39:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2025-03-09 06:39:39,394 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265625 [2025-03-09 06:39:39,395 INFO L175 Difference]: Start difference. First operand has 89 places, 92 transitions, 193 flow. Second operand 4 states and 279 transitions. [2025-03-09 06:39:39,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 107 transitions, 332 flow [2025-03-09 06:39:39,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 107 transitions, 326 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:39,404 INFO L231 Difference]: Finished difference. Result has 87 places, 90 transitions, 190 flow [2025-03-09 06:39:39,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=87, PETRI_TRANSITIONS=90} [2025-03-09 06:39:39,409 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, -2 predicate places. [2025-03-09 06:39:39,410 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 90 transitions, 190 flow [2025-03-09 06:39:39,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:39,411 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:39,411 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:39,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:39:39,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:39,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:39,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1922372891, now seen corresponding path program 1 times [2025-03-09 06:39:39,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:39,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603370837] [2025-03-09 06:39:39,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:39,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:39,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:39:39,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:39:39,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:39,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:39,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:39,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:39,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603370837] [2025-03-09 06:39:39,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603370837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:39,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:39,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:39,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144355992] [2025-03-09 06:39:39,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:39,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:39,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:39,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:39,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:39,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2025-03-09 06:39:39,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 90 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:39,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:39,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2025-03-09 06:39:39,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:39,743 INFO L124 PetriNetUnfolderBase]: 651/1754 cut-off events. [2025-03-09 06:39:39,743 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2025-03-09 06:39:39,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2795 conditions, 1754 events. 651/1754 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 12469 event pairs, 266 based on Foata normal form. 0/1419 useless extension candidates. Maximal degree in co-relation 2440. Up to 626 conditions per place. [2025-03-09 06:39:39,754 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 48 selfloop transitions, 3 changer transitions 0/106 dead transitions. [2025-03-09 06:39:39,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 106 transitions, 326 flow [2025-03-09 06:39:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:39,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:39,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2025-03-09 06:39:39,756 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2025-03-09 06:39:39,756 INFO L175 Difference]: Start difference. First operand has 87 places, 90 transitions, 190 flow. Second operand 4 states and 280 transitions. [2025-03-09 06:39:39,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 106 transitions, 326 flow [2025-03-09 06:39:39,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 106 transitions, 320 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:39,758 INFO L231 Difference]: Finished difference. Result has 86 places, 89 transitions, 188 flow [2025-03-09 06:39:39,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=188, PETRI_PLACES=86, PETRI_TRANSITIONS=89} [2025-03-09 06:39:39,761 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, -3 predicate places. [2025-03-09 06:39:39,761 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 89 transitions, 188 flow [2025-03-09 06:39:39,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:39,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:39,761 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:39,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:39:39,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:39,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:39,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2066447454, now seen corresponding path program 1 times [2025-03-09 06:39:39,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:39,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288411730] [2025-03-09 06:39:39,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:39,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:39,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:39:39,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:39:39,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:39,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:39,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:39,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:39,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288411730] [2025-03-09 06:39:39,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288411730] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:39,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:39,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:39,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311178682] [2025-03-09 06:39:39,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:39,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:39,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:39,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:39,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:39,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2025-03-09 06:39:39,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 89 transitions, 188 flow. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:39,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:39,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2025-03-09 06:39:39,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:40,074 INFO L124 PetriNetUnfolderBase]: 749/1903 cut-off events. [2025-03-09 06:39:40,074 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-09 06:39:40,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3096 conditions, 1903 events. 749/1903 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 13682 event pairs, 269 based on Foata normal form. 58/1556 useless extension candidates. Maximal degree in co-relation 2729. Up to 658 conditions per place. [2025-03-09 06:39:40,083 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 49 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2025-03-09 06:39:40,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 103 transitions, 325 flow [2025-03-09 06:39:40,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:40,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:40,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2025-03-09 06:39:40,085 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7239583333333334 [2025-03-09 06:39:40,085 INFO L175 Difference]: Start difference. First operand has 86 places, 89 transitions, 188 flow. Second operand 4 states and 278 transitions. [2025-03-09 06:39:40,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 103 transitions, 325 flow [2025-03-09 06:39:40,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 103 transitions, 315 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:40,087 INFO L231 Difference]: Finished difference. Result has 84 places, 87 transitions, 184 flow [2025-03-09 06:39:40,087 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=84, PETRI_TRANSITIONS=87} [2025-03-09 06:39:40,087 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, -5 predicate places. [2025-03-09 06:39:40,087 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 87 transitions, 184 flow [2025-03-09 06:39:40,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:40,088 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:40,088 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:40,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:39:40,088 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:40,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:40,088 INFO L85 PathProgramCache]: Analyzing trace with hash -364637713, now seen corresponding path program 1 times [2025-03-09 06:39:40,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:40,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520220442] [2025-03-09 06:39:40,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:40,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:40,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:39:40,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:39:40,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:40,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:40,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:40,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:40,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520220442] [2025-03-09 06:39:40,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520220442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:40,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:40,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:40,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320622496] [2025-03-09 06:39:40,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:40,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:40,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:40,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:40,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:40,176 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2025-03-09 06:39:40,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 87 transitions, 184 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:40,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:40,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2025-03-09 06:39:40,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:40,353 INFO L124 PetriNetUnfolderBase]: 647/1772 cut-off events. [2025-03-09 06:39:40,353 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2025-03-09 06:39:40,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2811 conditions, 1772 events. 647/1772 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 12901 event pairs, 269 based on Foata normal form. 0/1432 useless extension candidates. Maximal degree in co-relation 2462. Up to 658 conditions per place. [2025-03-09 06:39:40,362 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 47 selfloop transitions, 3 changer transitions 0/102 dead transitions. [2025-03-09 06:39:40,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 102 transitions, 315 flow [2025-03-09 06:39:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:40,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 279 transitions. [2025-03-09 06:39:40,364 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265625 [2025-03-09 06:39:40,364 INFO L175 Difference]: Start difference. First operand has 84 places, 87 transitions, 184 flow. Second operand 4 states and 279 transitions. [2025-03-09 06:39:40,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 102 transitions, 315 flow [2025-03-09 06:39:40,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 102 transitions, 309 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:40,369 INFO L231 Difference]: Finished difference. Result has 83 places, 86 transitions, 182 flow [2025-03-09 06:39:40,369 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=83, PETRI_TRANSITIONS=86} [2025-03-09 06:39:40,370 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, -6 predicate places. [2025-03-09 06:39:40,371 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 86 transitions, 182 flow [2025-03-09 06:39:40,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:40,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:40,371 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:40,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:39:40,372 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:40,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:40,372 INFO L85 PathProgramCache]: Analyzing trace with hash 563476317, now seen corresponding path program 1 times [2025-03-09 06:39:40,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:40,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268984478] [2025-03-09 06:39:40,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:40,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:40,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:39:40,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:39:40,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:40,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:40,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:40,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268984478] [2025-03-09 06:39:40,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268984478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:40,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:40,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:40,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597768103] [2025-03-09 06:39:40,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:40,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:40,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:40,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:40,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:40,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 96 [2025-03-09 06:39:40,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 86 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 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) [2025-03-09 06:39:40,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:40,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 96 [2025-03-09 06:39:40,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:40,753 INFO L124 PetriNetUnfolderBase]: 899/1988 cut-off events. [2025-03-09 06:39:40,754 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2025-03-09 06:39:40,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3447 conditions, 1988 events. 899/1988 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 13032 event pairs, 298 based on Foata normal form. 0/1668 useless extension candidates. Maximal degree in co-relation 3058. Up to 626 conditions per place. [2025-03-09 06:39:40,763 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 68 selfloop transitions, 5 changer transitions 0/120 dead transitions. [2025-03-09 06:39:40,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 120 transitions, 408 flow [2025-03-09 06:39:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:40,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 349 transitions. [2025-03-09 06:39:40,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7270833333333333 [2025-03-09 06:39:40,766 INFO L175 Difference]: Start difference. First operand has 83 places, 86 transitions, 182 flow. Second operand 5 states and 349 transitions. [2025-03-09 06:39:40,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 120 transitions, 408 flow [2025-03-09 06:39:40,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 120 transitions, 394 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:40,774 INFO L231 Difference]: Finished difference. Result has 84 places, 86 transitions, 191 flow [2025-03-09 06:39:40,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=84, PETRI_TRANSITIONS=86} [2025-03-09 06:39:40,775 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, -5 predicate places. [2025-03-09 06:39:40,776 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 86 transitions, 191 flow [2025-03-09 06:39:40,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 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) [2025-03-09 06:39:40,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:40,777 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:40,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:39:40,777 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:40,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash 563477310, now seen corresponding path program 1 times [2025-03-09 06:39:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864749866] [2025-03-09 06:39:40,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:40,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:39:40,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:39:40,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:40,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:40,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:40,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:40,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864749866] [2025-03-09 06:39:40,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864749866] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:40,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:40,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:40,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269882294] [2025-03-09 06:39:40,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:40,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:40,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:40,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:40,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:40,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:39:40,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 86 transitions, 191 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:40,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:40,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:39:40,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:41,069 INFO L124 PetriNetUnfolderBase]: 957/2288 cut-off events. [2025-03-09 06:39:41,069 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2025-03-09 06:39:41,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3968 conditions, 2288 events. 957/2288 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 16423 event pairs, 406 based on Foata normal form. 0/1915 useless extension candidates. Maximal degree in co-relation 3540. Up to 965 conditions per place. [2025-03-09 06:39:41,079 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 70 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2025-03-09 06:39:41,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 123 transitions, 421 flow [2025-03-09 06:39:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:41,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 292 transitions. [2025-03-09 06:39:41,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7604166666666666 [2025-03-09 06:39:41,080 INFO L175 Difference]: Start difference. First operand has 84 places, 86 transitions, 191 flow. Second operand 4 states and 292 transitions. [2025-03-09 06:39:41,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 123 transitions, 421 flow [2025-03-09 06:39:41,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 123 transitions, 412 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:41,082 INFO L231 Difference]: Finished difference. Result has 86 places, 88 transitions, 211 flow [2025-03-09 06:39:41,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=86, PETRI_TRANSITIONS=88} [2025-03-09 06:39:41,083 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, -3 predicate places. [2025-03-09 06:39:41,083 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 88 transitions, 211 flow [2025-03-09 06:39:41,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:41,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:41,084 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:41,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:39:41,084 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:41,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:41,084 INFO L85 PathProgramCache]: Analyzing trace with hash 287897262, now seen corresponding path program 1 times [2025-03-09 06:39:41,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:41,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541876825] [2025-03-09 06:39:41,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:41,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:41,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:39:41,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:39:41,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:41,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:41,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:41,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:41,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541876825] [2025-03-09 06:39:41,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541876825] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:41,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:41,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:41,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822762794] [2025-03-09 06:39:41,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:41,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:41,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:41,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:41,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:41,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2025-03-09 06:39:41,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 88 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:41,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:41,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2025-03-09 06:39:41,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:41,436 INFO L124 PetriNetUnfolderBase]: 1125/2394 cut-off events. [2025-03-09 06:39:41,436 INFO L125 PetriNetUnfolderBase]: For 447/455 co-relation queries the response was YES. [2025-03-09 06:39:41,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4540 conditions, 2394 events. 1125/2394 cut-off events. For 447/455 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 16206 event pairs, 258 based on Foata normal form. 68/2151 useless extension candidates. Maximal degree in co-relation 4076. Up to 656 conditions per place. [2025-03-09 06:39:41,447 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 83 selfloop transitions, 9 changer transitions 0/139 dead transitions. [2025-03-09 06:39:41,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 139 transitions, 503 flow [2025-03-09 06:39:41,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:41,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 402 transitions. [2025-03-09 06:39:41,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2025-03-09 06:39:41,450 INFO L175 Difference]: Start difference. First operand has 86 places, 88 transitions, 211 flow. Second operand 6 states and 402 transitions. [2025-03-09 06:39:41,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 139 transitions, 503 flow [2025-03-09 06:39:41,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 139 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:41,455 INFO L231 Difference]: Finished difference. Result has 90 places, 88 transitions, 233 flow [2025-03-09 06:39:41,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2025-03-09 06:39:41,456 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 1 predicate places. [2025-03-09 06:39:41,457 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 233 flow [2025-03-09 06:39:41,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:41,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:41,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:41,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:39:41,457 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:41,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:41,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1769542801, now seen corresponding path program 1 times [2025-03-09 06:39:41,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:41,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308626] [2025-03-09 06:39:41,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:41,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:41,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:39:41,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:39:41,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:41,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:41,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:41,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:41,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308626] [2025-03-09 06:39:41,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:41,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:41,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:41,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107714920] [2025-03-09 06:39:41,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:41,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:41,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:41,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:41,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:41,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 96 [2025-03-09 06:39:41,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:41,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:41,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 96 [2025-03-09 06:39:41,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:41,759 INFO L124 PetriNetUnfolderBase]: 1068/2362 cut-off events. [2025-03-09 06:39:41,759 INFO L125 PetriNetUnfolderBase]: For 1122/1218 co-relation queries the response was YES. [2025-03-09 06:39:41,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4751 conditions, 2362 events. 1068/2362 cut-off events. For 1122/1218 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 16417 event pairs, 327 based on Foata normal form. 72/2066 useless extension candidates. Maximal degree in co-relation 4256. Up to 798 conditions per place. [2025-03-09 06:39:41,775 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 78 selfloop transitions, 5 changer transitions 0/128 dead transitions. [2025-03-09 06:39:41,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 128 transitions, 559 flow [2025-03-09 06:39:41,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:41,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 347 transitions. [2025-03-09 06:39:41,779 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7229166666666667 [2025-03-09 06:39:41,779 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 233 flow. Second operand 5 states and 347 transitions. [2025-03-09 06:39:41,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 128 transitions, 559 flow [2025-03-09 06:39:41,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 128 transitions, 528 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:41,784 INFO L231 Difference]: Finished difference. Result has 90 places, 88 transitions, 235 flow [2025-03-09 06:39:41,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=90, PETRI_TRANSITIONS=88} [2025-03-09 06:39:41,787 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 1 predicate places. [2025-03-09 06:39:41,787 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 88 transitions, 235 flow [2025-03-09 06:39:41,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:41,788 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:41,788 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:41,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:39:41,788 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:41,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:41,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1769543794, now seen corresponding path program 1 times [2025-03-09 06:39:41,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:41,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954194029] [2025-03-09 06:39:41,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:41,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:41,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:39:41,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:39:41,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:41,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:41,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:41,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954194029] [2025-03-09 06:39:41,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954194029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:41,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:41,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:41,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465986569] [2025-03-09 06:39:41,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:41,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:41,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:41,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:41,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:41,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:39:41,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 88 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:41,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:41,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:39:41,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:42,069 INFO L124 PetriNetUnfolderBase]: 1160/2695 cut-off events. [2025-03-09 06:39:42,069 INFO L125 PetriNetUnfolderBase]: For 837/933 co-relation queries the response was YES. [2025-03-09 06:39:42,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5345 conditions, 2695 events. 1160/2695 cut-off events. For 837/933 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 20051 event pairs, 515 based on Foata normal form. 76/2434 useless extension candidates. Maximal degree in co-relation 4821. Up to 1200 conditions per place. [2025-03-09 06:39:42,078 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 80 selfloop transitions, 5 changer transitions 0/131 dead transitions. [2025-03-09 06:39:42,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 131 transitions, 555 flow [2025-03-09 06:39:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:42,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2025-03-09 06:39:42,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7552083333333334 [2025-03-09 06:39:42,080 INFO L175 Difference]: Start difference. First operand has 90 places, 88 transitions, 235 flow. Second operand 4 states and 290 transitions. [2025-03-09 06:39:42,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 131 transitions, 555 flow [2025-03-09 06:39:42,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 131 transitions, 546 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:42,084 INFO L231 Difference]: Finished difference. Result has 92 places, 90 transitions, 255 flow [2025-03-09 06:39:42,084 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=92, PETRI_TRANSITIONS=90} [2025-03-09 06:39:42,086 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 3 predicate places. [2025-03-09 06:39:42,086 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 90 transitions, 255 flow [2025-03-09 06:39:42,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:42,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:42,086 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:42,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:39:42,086 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:42,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:42,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1253570084, now seen corresponding path program 1 times [2025-03-09 06:39:42,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:42,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436893984] [2025-03-09 06:39:42,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:42,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:42,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:39:42,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:39:42,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:42,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:42,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:42,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:42,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436893984] [2025-03-09 06:39:42,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436893984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:42,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:42,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:42,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470525491] [2025-03-09 06:39:42,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:42,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:42,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:42,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:42,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:42,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2025-03-09 06:39:42,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 255 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:42,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:42,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2025-03-09 06:39:42,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:42,422 INFO L124 PetriNetUnfolderBase]: 1287/2764 cut-off events. [2025-03-09 06:39:42,422 INFO L125 PetriNetUnfolderBase]: For 1007/1048 co-relation queries the response was YES. [2025-03-09 06:39:42,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5871 conditions, 2764 events. 1287/2764 cut-off events. For 1007/1048 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 19413 event pairs, 497 based on Foata normal form. 63/2546 useless extension candidates. Maximal degree in co-relation 5335. Up to 1207 conditions per place. [2025-03-09 06:39:42,434 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 118 selfloop transitions, 8 changer transitions 0/170 dead transitions. [2025-03-09 06:39:42,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 170 transitions, 767 flow [2025-03-09 06:39:42,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2025-03-09 06:39:42,436 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2025-03-09 06:39:42,436 INFO L175 Difference]: Start difference. First operand has 92 places, 90 transitions, 255 flow. Second operand 6 states and 424 transitions. [2025-03-09 06:39:42,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 170 transitions, 767 flow [2025-03-09 06:39:42,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 170 transitions, 751 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:42,441 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 270 flow [2025-03-09 06:39:42,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=270, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2025-03-09 06:39:42,441 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 7 predicate places. [2025-03-09 06:39:42,441 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 270 flow [2025-03-09 06:39:42,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:42,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:42,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:42,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:39:42,442 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:42,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash -978747355, now seen corresponding path program 1 times [2025-03-09 06:39:42,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:42,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725884897] [2025-03-09 06:39:42,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:42,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:42,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:39:42,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:39:42,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:42,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:42,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:42,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725884897] [2025-03-09 06:39:42,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725884897] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:42,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:42,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:42,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039302380] [2025-03-09 06:39:42,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:42,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:42,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:42,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:42,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2025-03-09 06:39:42,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 270 flow. Second operand has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:42,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:42,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2025-03-09 06:39:42,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:42,832 INFO L124 PetriNetUnfolderBase]: 1293/2737 cut-off events. [2025-03-09 06:39:42,833 INFO L125 PetriNetUnfolderBase]: For 2081/2177 co-relation queries the response was YES. [2025-03-09 06:39:42,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6028 conditions, 2737 events. 1293/2737 cut-off events. For 2081/2177 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 19246 event pairs, 327 based on Foata normal form. 162/2599 useless extension candidates. Maximal degree in co-relation 5467. Up to 811 conditions per place. [2025-03-09 06:39:42,843 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 96 selfloop transitions, 9 changer transitions 0/150 dead transitions. [2025-03-09 06:39:42,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 150 transitions, 726 flow [2025-03-09 06:39:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:42,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions. [2025-03-09 06:39:42,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6927083333333334 [2025-03-09 06:39:42,845 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 270 flow. Second operand 6 states and 399 transitions. [2025-03-09 06:39:42,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 150 transitions, 726 flow [2025-03-09 06:39:42,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 150 transitions, 693 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:42,849 INFO L231 Difference]: Finished difference. Result has 99 places, 90 transitions, 286 flow [2025-03-09 06:39:42,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=99, PETRI_TRANSITIONS=90} [2025-03-09 06:39:42,850 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2025-03-09 06:39:42,850 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 90 transitions, 286 flow [2025-03-09 06:39:42,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:42,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:42,850 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:42,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:39:42,850 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:42,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:42,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1791383698, now seen corresponding path program 1 times [2025-03-09 06:39:42,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:42,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443469343] [2025-03-09 06:39:42,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:42,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:42,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:39:42,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:39:42,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:42,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:42,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:42,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:42,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443469343] [2025-03-09 06:39:42,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443469343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:42,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:42,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:42,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989432031] [2025-03-09 06:39:42,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:42,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:42,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:42,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:42,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:42,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 96 [2025-03-09 06:39:42,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 90 transitions, 286 flow. Second operand has 5 states, 5 states have (on average 52.8) internal successors, (264), 5 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:42,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:42,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 96 [2025-03-09 06:39:42,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:43,290 INFO L124 PetriNetUnfolderBase]: 1610/3523 cut-off events. [2025-03-09 06:39:43,291 INFO L125 PetriNetUnfolderBase]: For 2258/2387 co-relation queries the response was YES. [2025-03-09 06:39:43,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7808 conditions, 3523 events. 1610/3523 cut-off events. For 2258/2387 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 26141 event pairs, 538 based on Foata normal form. 161/3259 useless extension candidates. Maximal degree in co-relation 7159. Up to 1266 conditions per place. [2025-03-09 06:39:43,309 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 110 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2025-03-09 06:39:43,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 160 transitions, 783 flow [2025-03-09 06:39:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2025-03-09 06:39:43,311 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.74375 [2025-03-09 06:39:43,311 INFO L175 Difference]: Start difference. First operand has 99 places, 90 transitions, 286 flow. Second operand 5 states and 357 transitions. [2025-03-09 06:39:43,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 160 transitions, 783 flow [2025-03-09 06:39:43,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 160 transitions, 743 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:43,319 INFO L231 Difference]: Finished difference. Result has 101 places, 93 transitions, 312 flow [2025-03-09 06:39:43,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=312, PETRI_PLACES=101, PETRI_TRANSITIONS=93} [2025-03-09 06:39:43,320 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 12 predicate places. [2025-03-09 06:39:43,320 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 93 transitions, 312 flow [2025-03-09 06:39:43,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 52.8) internal successors, (264), 5 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:43,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:43,320 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:43,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:39:43,321 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:43,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:43,321 INFO L85 PathProgramCache]: Analyzing trace with hash 642292664, now seen corresponding path program 1 times [2025-03-09 06:39:43,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:43,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876137661] [2025-03-09 06:39:43,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:43,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:43,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:39:43,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:39:43,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:43,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:43,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:43,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:43,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876137661] [2025-03-09 06:39:43,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876137661] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:43,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:43,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:43,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82279655] [2025-03-09 06:39:43,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:43,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:43,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:43,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:43,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:43,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:39:43,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 93 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:43,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:43,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:39:43,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:43,687 INFO L124 PetriNetUnfolderBase]: 1686/3641 cut-off events. [2025-03-09 06:39:43,688 INFO L125 PetriNetUnfolderBase]: For 2820/2923 co-relation queries the response was YES. [2025-03-09 06:39:43,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8194 conditions, 3641 events. 1686/3641 cut-off events. For 2820/2923 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 27708 event pairs, 646 based on Foata normal form. 146/3479 useless extension candidates. Maximal degree in co-relation 7529. Up to 1534 conditions per place. [2025-03-09 06:39:43,703 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 83 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2025-03-09 06:39:43,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 135 transitions, 670 flow [2025-03-09 06:39:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2025-03-09 06:39:43,704 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7473958333333334 [2025-03-09 06:39:43,705 INFO L175 Difference]: Start difference. First operand has 101 places, 93 transitions, 312 flow. Second operand 4 states and 287 transitions. [2025-03-09 06:39:43,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 135 transitions, 670 flow [2025-03-09 06:39:43,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 135 transitions, 659 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:43,711 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 321 flow [2025-03-09 06:39:43,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=321, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2025-03-09 06:39:43,712 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 13 predicate places. [2025-03-09 06:39:43,712 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 321 flow [2025-03-09 06:39:43,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:43,712 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:43,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:43,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:39:43,713 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:43,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:43,713 INFO L85 PathProgramCache]: Analyzing trace with hash -301679582, now seen corresponding path program 1 times [2025-03-09 06:39:43,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:43,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217806281] [2025-03-09 06:39:43,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:43,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:43,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:39:43,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:39:43,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:43,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:43,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:43,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:43,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217806281] [2025-03-09 06:39:43,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217806281] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:43,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:43,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:43,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863124926] [2025-03-09 06:39:43,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:43,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:43,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:43,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:43,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:43,820 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2025-03-09 06:39:43,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 321 flow. Second operand has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:43,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:43,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2025-03-09 06:39:43,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:44,226 INFO L124 PetriNetUnfolderBase]: 2064/4568 cut-off events. [2025-03-09 06:39:44,226 INFO L125 PetriNetUnfolderBase]: For 3817/3930 co-relation queries the response was YES. [2025-03-09 06:39:44,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10607 conditions, 4568 events. 2064/4568 cut-off events. For 3817/3930 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 36463 event pairs, 441 based on Foata normal form. 257/4439 useless extension candidates. Maximal degree in co-relation 9840. Up to 1031 conditions per place. [2025-03-09 06:39:44,242 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 133 selfloop transitions, 12 changer transitions 0/185 dead transitions. [2025-03-09 06:39:44,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 185 transitions, 982 flow [2025-03-09 06:39:44,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 417 transitions. [2025-03-09 06:39:44,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7239583333333334 [2025-03-09 06:39:44,244 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 321 flow. Second operand 6 states and 417 transitions. [2025-03-09 06:39:44,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 185 transitions, 982 flow [2025-03-09 06:39:44,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 185 transitions, 958 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:44,255 INFO L231 Difference]: Finished difference. Result has 107 places, 94 transitions, 356 flow [2025-03-09 06:39:44,255 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=356, PETRI_PLACES=107, PETRI_TRANSITIONS=94} [2025-03-09 06:39:44,257 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 18 predicate places. [2025-03-09 06:39:44,257 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 94 transitions, 356 flow [2025-03-09 06:39:44,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:44,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:44,257 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:44,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 06:39:44,258 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:44,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:44,258 INFO L85 PathProgramCache]: Analyzing trace with hash 21652905, now seen corresponding path program 1 times [2025-03-09 06:39:44,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:44,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328759860] [2025-03-09 06:39:44,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:44,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:44,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:39:44,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:39:44,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:44,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:44,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:44,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:44,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328759860] [2025-03-09 06:39:44,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328759860] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:44,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:44,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:44,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707115992] [2025-03-09 06:39:44,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:44,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:44,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:44,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:44,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:44,306 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:39:44,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 94 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:44,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:44,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:39:44,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:44,634 INFO L124 PetriNetUnfolderBase]: 2462/5448 cut-off events. [2025-03-09 06:39:44,634 INFO L125 PetriNetUnfolderBase]: For 6332/6501 co-relation queries the response was YES. [2025-03-09 06:39:44,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12562 conditions, 5448 events. 2462/5448 cut-off events. For 6332/6501 co-relation queries the response was YES. Maximal size of possible extension queue 268. Compared 45297 event pairs, 1053 based on Foata normal form. 263/5081 useless extension candidates. Maximal degree in co-relation 11737. Up to 2343 conditions per place. [2025-03-09 06:39:44,652 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 97 selfloop transitions, 7 changer transitions 0/145 dead transitions. [2025-03-09 06:39:44,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 145 transitions, 832 flow [2025-03-09 06:39:44,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:44,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:44,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2025-03-09 06:39:44,654 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.765625 [2025-03-09 06:39:44,654 INFO L175 Difference]: Start difference. First operand has 107 places, 94 transitions, 356 flow. Second operand 4 states and 294 transitions. [2025-03-09 06:39:44,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 145 transitions, 832 flow [2025-03-09 06:39:44,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 145 transitions, 821 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:44,667 INFO L231 Difference]: Finished difference. Result has 111 places, 96 transitions, 393 flow [2025-03-09 06:39:44,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=393, PETRI_PLACES=111, PETRI_TRANSITIONS=96} [2025-03-09 06:39:44,668 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 22 predicate places. [2025-03-09 06:39:44,668 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 96 transitions, 393 flow [2025-03-09 06:39:44,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:44,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:44,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:44,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 06:39:44,668 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:44,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash 336767980, now seen corresponding path program 1 times [2025-03-09 06:39:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:44,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583445047] [2025-03-09 06:39:44,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:44,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:44,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:39:44,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:39:44,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:44,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:44,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:44,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583445047] [2025-03-09 06:39:44,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583445047] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:44,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:44,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:44,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271324630] [2025-03-09 06:39:44,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:44,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:44,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:44,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:44,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:44,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:39:44,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 96 transitions, 393 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:44,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:44,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:39:44,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:45,122 INFO L124 PetriNetUnfolderBase]: 3142/7061 cut-off events. [2025-03-09 06:39:45,122 INFO L125 PetriNetUnfolderBase]: For 10539/10878 co-relation queries the response was YES. [2025-03-09 06:39:45,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17174 conditions, 7061 events. 3142/7061 cut-off events. For 10539/10878 co-relation queries the response was YES. Maximal size of possible extension queue 343. Compared 61868 event pairs, 1088 based on Foata normal form. 489/6796 useless extension candidates. Maximal degree in co-relation 16136. Up to 2506 conditions per place. [2025-03-09 06:39:45,155 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 99 selfloop transitions, 9 changer transitions 0/149 dead transitions. [2025-03-09 06:39:45,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 149 transitions, 873 flow [2025-03-09 06:39:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:45,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2025-03-09 06:39:45,156 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2025-03-09 06:39:45,156 INFO L175 Difference]: Start difference. First operand has 111 places, 96 transitions, 393 flow. Second operand 4 states and 296 transitions. [2025-03-09 06:39:45,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 149 transitions, 873 flow [2025-03-09 06:39:45,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 149 transitions, 873 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:39:45,186 INFO L231 Difference]: Finished difference. Result has 116 places, 100 transitions, 473 flow [2025-03-09 06:39:45,186 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=473, PETRI_PLACES=116, PETRI_TRANSITIONS=100} [2025-03-09 06:39:45,187 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 27 predicate places. [2025-03-09 06:39:45,187 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 100 transitions, 473 flow [2025-03-09 06:39:45,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:45,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:45,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:45,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-09 06:39:45,187 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:45,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash 671240726, now seen corresponding path program 1 times [2025-03-09 06:39:45,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:45,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874322555] [2025-03-09 06:39:45,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:45,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:45,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:39:45,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:39:45,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:45,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:45,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:45,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:45,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874322555] [2025-03-09 06:39:45,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874322555] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:45,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:45,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:45,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835761942] [2025-03-09 06:39:45,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:45,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:45,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:45,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:45,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:45,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2025-03-09 06:39:45,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 100 transitions, 473 flow. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:45,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:45,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2025-03-09 06:39:45,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:46,187 INFO L124 PetriNetUnfolderBase]: 4423/10056 cut-off events. [2025-03-09 06:39:46,187 INFO L125 PetriNetUnfolderBase]: For 20173/20622 co-relation queries the response was YES. [2025-03-09 06:39:46,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25856 conditions, 10056 events. 4423/10056 cut-off events. For 20173/20622 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 95089 event pairs, 1110 based on Foata normal form. 495/9630 useless extension candidates. Maximal degree in co-relation 24601. Up to 2547 conditions per place. [2025-03-09 06:39:46,222 INFO L140 encePairwiseOnDemand]: 86/96 looper letters, 195 selfloop transitions, 14 changer transitions 0/250 dead transitions. [2025-03-09 06:39:46,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 250 transitions, 1899 flow [2025-03-09 06:39:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:39:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:39:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 481 transitions. [2025-03-09 06:39:46,223 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7157738095238095 [2025-03-09 06:39:46,224 INFO L175 Difference]: Start difference. First operand has 116 places, 100 transitions, 473 flow. Second operand 7 states and 481 transitions. [2025-03-09 06:39:46,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 250 transitions, 1899 flow [2025-03-09 06:39:46,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 250 transitions, 1899 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:39:46,278 INFO L231 Difference]: Finished difference. Result has 124 places, 105 transitions, 548 flow [2025-03-09 06:39:46,278 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=548, PETRI_PLACES=124, PETRI_TRANSITIONS=105} [2025-03-09 06:39:46,279 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 35 predicate places. [2025-03-09 06:39:46,279 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 105 transitions, 548 flow [2025-03-09 06:39:46,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:46,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:46,279 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:46,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-09 06:39:46,279 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:46,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:46,280 INFO L85 PathProgramCache]: Analyzing trace with hash 210995624, now seen corresponding path program 1 times [2025-03-09 06:39:46,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:46,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548965340] [2025-03-09 06:39:46,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:46,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:46,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:39:46,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:39:46,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:46,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:46,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:46,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548965340] [2025-03-09 06:39:46,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548965340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:46,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:46,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:46,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23967904] [2025-03-09 06:39:46,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:46,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:46,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:46,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:46,356 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2025-03-09 06:39:46,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 105 transitions, 548 flow. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:46,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:46,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2025-03-09 06:39:46,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:47,011 INFO L124 PetriNetUnfolderBase]: 4009/9748 cut-off events. [2025-03-09 06:39:47,011 INFO L125 PetriNetUnfolderBase]: For 24293/24868 co-relation queries the response was YES. [2025-03-09 06:39:47,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26493 conditions, 9748 events. 4009/9748 cut-off events. For 24293/24868 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 95010 event pairs, 1242 based on Foata normal form. 431/9271 useless extension candidates. Maximal degree in co-relation 25170. Up to 2841 conditions per place. [2025-03-09 06:39:47,059 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 138 selfloop transitions, 11 changer transitions 0/194 dead transitions. [2025-03-09 06:39:47,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 194 transitions, 1400 flow [2025-03-09 06:39:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:47,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:47,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2025-03-09 06:39:47,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7395833333333334 [2025-03-09 06:39:47,060 INFO L175 Difference]: Start difference. First operand has 124 places, 105 transitions, 548 flow. Second operand 5 states and 355 transitions. [2025-03-09 06:39:47,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 194 transitions, 1400 flow [2025-03-09 06:39:47,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 194 transitions, 1362 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:47,127 INFO L231 Difference]: Finished difference. Result has 126 places, 106 transitions, 585 flow [2025-03-09 06:39:47,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=585, PETRI_PLACES=126, PETRI_TRANSITIONS=106} [2025-03-09 06:39:47,127 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 37 predicate places. [2025-03-09 06:39:47,127 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 106 transitions, 585 flow [2025-03-09 06:39:47,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:47,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:47,127 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:47,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-09 06:39:47,127 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:47,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:47,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2142763748, now seen corresponding path program 1 times [2025-03-09 06:39:47,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:47,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856106948] [2025-03-09 06:39:47,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:47,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:47,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:39:47,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:39:47,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:47,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:47,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856106948] [2025-03-09 06:39:47,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856106948] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:47,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:47,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:47,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971076211] [2025-03-09 06:39:47,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:47,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:39:47,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:47,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:39:47,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:39:47,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2025-03-09 06:39:47,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 106 transitions, 585 flow. Second operand has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:47,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:47,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2025-03-09 06:39:47,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:48,185 INFO L124 PetriNetUnfolderBase]: 6452/11905 cut-off events. [2025-03-09 06:39:48,186 INFO L125 PetriNetUnfolderBase]: For 30590/31803 co-relation queries the response was YES. [2025-03-09 06:39:48,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35939 conditions, 11905 events. 6452/11905 cut-off events. For 30590/31803 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 97724 event pairs, 304 based on Foata normal form. 673/12126 useless extension candidates. Maximal degree in co-relation 34405. Up to 5411 conditions per place. [2025-03-09 06:39:48,237 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 161 selfloop transitions, 17 changer transitions 0/217 dead transitions. [2025-03-09 06:39:48,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 217 transitions, 1603 flow [2025-03-09 06:39:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:39:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:39:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 462 transitions. [2025-03-09 06:39:48,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6875 [2025-03-09 06:39:48,238 INFO L175 Difference]: Start difference. First operand has 126 places, 106 transitions, 585 flow. Second operand 7 states and 462 transitions. [2025-03-09 06:39:48,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 217 transitions, 1603 flow [2025-03-09 06:39:48,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 217 transitions, 1599 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:48,309 INFO L231 Difference]: Finished difference. Result has 130 places, 105 transitions, 613 flow [2025-03-09 06:39:48,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=613, PETRI_PLACES=130, PETRI_TRANSITIONS=105} [2025-03-09 06:39:48,309 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 41 predicate places. [2025-03-09 06:39:48,309 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 105 transitions, 613 flow [2025-03-09 06:39:48,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:48,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:48,310 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:48,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-09 06:39:48,310 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:48,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:48,310 INFO L85 PathProgramCache]: Analyzing trace with hash -666404051, now seen corresponding path program 1 times [2025-03-09 06:39:48,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:48,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466235085] [2025-03-09 06:39:48,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:48,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:48,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:39:48,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:39:48,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:48,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:48,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:48,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466235085] [2025-03-09 06:39:48,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466235085] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:48,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:48,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:48,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332428196] [2025-03-09 06:39:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:48,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:48,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:48,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:48,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:48,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:39:48,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 105 transitions, 613 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 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) [2025-03-09 06:39:48,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:48,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:39:48,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:49,668 INFO L124 PetriNetUnfolderBase]: 7003/16725 cut-off events. [2025-03-09 06:39:49,669 INFO L125 PetriNetUnfolderBase]: For 57025/57774 co-relation queries the response was YES. [2025-03-09 06:39:49,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47250 conditions, 16725 events. 7003/16725 cut-off events. For 57025/57774 co-relation queries the response was YES. Maximal size of possible extension queue 860. Compared 177161 event pairs, 2552 based on Foata normal form. 743/15909 useless extension candidates. Maximal degree in co-relation 45494. Up to 5614 conditions per place. [2025-03-09 06:39:49,800 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 190 selfloop transitions, 13 changer transitions 0/242 dead transitions. [2025-03-09 06:39:49,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 242 transitions, 2196 flow [2025-03-09 06:39:49,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:49,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2025-03-09 06:39:49,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7621527777777778 [2025-03-09 06:39:49,801 INFO L175 Difference]: Start difference. First operand has 130 places, 105 transitions, 613 flow. Second operand 6 states and 439 transitions. [2025-03-09 06:39:49,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 242 transitions, 2196 flow [2025-03-09 06:39:50,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 242 transitions, 2071 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:39:50,003 INFO L231 Difference]: Finished difference. Result has 133 places, 114 transitions, 721 flow [2025-03-09 06:39:50,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=721, PETRI_PLACES=133, PETRI_TRANSITIONS=114} [2025-03-09 06:39:50,003 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 44 predicate places. [2025-03-09 06:39:50,003 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 114 transitions, 721 flow [2025-03-09 06:39:50,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 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) [2025-03-09 06:39:50,004 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:50,004 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:50,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-09 06:39:50,004 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:50,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:50,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2001167385, now seen corresponding path program 1 times [2025-03-09 06:39:50,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:50,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240554213] [2025-03-09 06:39:50,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:50,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:50,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:39:50,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:39:50,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:50,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:50,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:50,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240554213] [2025-03-09 06:39:50,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240554213] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:50,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:50,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 06:39:50,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903484587] [2025-03-09 06:39:50,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:50,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 06:39:50,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:50,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 06:39:50,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-09 06:39:50,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 96 [2025-03-09 06:39:50,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 114 transitions, 721 flow. Second operand has 9 states, 9 states have (on average 45.333333333333336) internal successors, (408), 9 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:50,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:50,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 96 [2025-03-09 06:39:50,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:51,481 INFO L124 PetriNetUnfolderBase]: 8814/16902 cut-off events. [2025-03-09 06:39:51,481 INFO L125 PetriNetUnfolderBase]: For 61298/62499 co-relation queries the response was YES. [2025-03-09 06:39:51,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53386 conditions, 16902 events. 8814/16902 cut-off events. For 61298/62499 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 153558 event pairs, 464 based on Foata normal form. 1461/17640 useless extension candidates. Maximal degree in co-relation 51539. Up to 3780 conditions per place. [2025-03-09 06:39:51,618 INFO L140 encePairwiseOnDemand]: 84/96 looper letters, 254 selfloop transitions, 24 changer transitions 0/318 dead transitions. [2025-03-09 06:39:51,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 318 transitions, 2855 flow [2025-03-09 06:39:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:39:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 06:39:51,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 541 transitions. [2025-03-09 06:39:51,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6261574074074074 [2025-03-09 06:39:51,620 INFO L175 Difference]: Start difference. First operand has 133 places, 114 transitions, 721 flow. Second operand 9 states and 541 transitions. [2025-03-09 06:39:51,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 318 transitions, 2855 flow [2025-03-09 06:39:51,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 318 transitions, 2840 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:51,915 INFO L231 Difference]: Finished difference. Result has 140 places, 114 transitions, 774 flow [2025-03-09 06:39:51,915 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=774, PETRI_PLACES=140, PETRI_TRANSITIONS=114} [2025-03-09 06:39:51,916 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2025-03-09 06:39:51,916 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 114 transitions, 774 flow [2025-03-09 06:39:51,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.333333333333336) internal successors, (408), 9 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:51,916 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:51,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:51,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-09 06:39:51,916 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:51,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:51,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1511470928, now seen corresponding path program 1 times [2025-03-09 06:39:51,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:51,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765423882] [2025-03-09 06:39:51,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:51,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:51,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:39:51,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:39:51,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:51,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:51,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:51,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:51,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765423882] [2025-03-09 06:39:51,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765423882] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:51,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:51,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:51,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29090256] [2025-03-09 06:39:51,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:51,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:51,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:51,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:51,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:51,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 96 [2025-03-09 06:39:51,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 114 transitions, 774 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:51,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:51,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 96 [2025-03-09 06:39:51,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:53,092 INFO L124 PetriNetUnfolderBase]: 6318/14288 cut-off events. [2025-03-09 06:39:53,092 INFO L125 PetriNetUnfolderBase]: For 63525/64318 co-relation queries the response was YES. [2025-03-09 06:39:53,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47308 conditions, 14288 events. 6318/14288 cut-off events. For 63525/64318 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 142280 event pairs, 488 based on Foata normal form. 583/14688 useless extension candidates. Maximal degree in co-relation 45498. Up to 5838 conditions per place. [2025-03-09 06:39:53,172 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 123 selfloop transitions, 13 changer transitions 0/181 dead transitions. [2025-03-09 06:39:53,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 181 transitions, 1559 flow [2025-03-09 06:39:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:53,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 345 transitions. [2025-03-09 06:39:53,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2025-03-09 06:39:53,174 INFO L175 Difference]: Start difference. First operand has 140 places, 114 transitions, 774 flow. Second operand 5 states and 345 transitions. [2025-03-09 06:39:53,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 181 transitions, 1559 flow [2025-03-09 06:39:53,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 181 transitions, 1517 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-09 06:39:53,386 INFO L231 Difference]: Finished difference. Result has 136 places, 113 transitions, 749 flow [2025-03-09 06:39:53,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=749, PETRI_PLACES=136, PETRI_TRANSITIONS=113} [2025-03-09 06:39:53,386 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 47 predicate places. [2025-03-09 06:39:53,386 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 113 transitions, 749 flow [2025-03-09 06:39:53,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:53,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:53,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:53,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-09 06:39:53,387 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:53,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:53,387 INFO L85 PathProgramCache]: Analyzing trace with hash 816310584, now seen corresponding path program 1 times [2025-03-09 06:39:53,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:53,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615310385] [2025-03-09 06:39:53,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:53,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:53,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:39:53,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:39:53,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:53,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:53,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:53,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615310385] [2025-03-09 06:39:53,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615310385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:53,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:53,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:53,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933458376] [2025-03-09 06:39:53,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:53,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 06:39:53,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:53,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 06:39:53,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 06:39:53,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2025-03-09 06:39:53,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 113 transitions, 749 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:53,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:53,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2025-03-09 06:39:53,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:54,919 INFO L124 PetriNetUnfolderBase]: 10036/18633 cut-off events. [2025-03-09 06:39:54,919 INFO L125 PetriNetUnfolderBase]: For 81480/83484 co-relation queries the response was YES. [2025-03-09 06:39:55,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63746 conditions, 18633 events. 10036/18633 cut-off events. For 81480/83484 co-relation queries the response was YES. Maximal size of possible extension queue 816. Compared 165987 event pairs, 402 based on Foata normal form. 1732/19735 useless extension candidates. Maximal degree in co-relation 61724. Up to 8410 conditions per place. [2025-03-09 06:39:55,070 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 177 selfloop transitions, 20 changer transitions 0/236 dead transitions. [2025-03-09 06:39:55,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 236 transitions, 2253 flow [2025-03-09 06:39:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:39:55,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:39:55,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 458 transitions. [2025-03-09 06:39:55,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6815476190476191 [2025-03-09 06:39:55,071 INFO L175 Difference]: Start difference. First operand has 136 places, 113 transitions, 749 flow. Second operand 7 states and 458 transitions. [2025-03-09 06:39:55,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 236 transitions, 2253 flow [2025-03-09 06:39:55,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 236 transitions, 2131 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:55,329 INFO L231 Difference]: Finished difference. Result has 137 places, 112 transitions, 761 flow [2025-03-09 06:39:55,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=761, PETRI_PLACES=137, PETRI_TRANSITIONS=112} [2025-03-09 06:39:55,329 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 48 predicate places. [2025-03-09 06:39:55,329 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 112 transitions, 761 flow [2025-03-09 06:39:55,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:55,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:55,330 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:55,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-09 06:39:55,330 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:55,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:55,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1115457540, now seen corresponding path program 1 times [2025-03-09 06:39:55,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:55,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137026719] [2025-03-09 06:39:55,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:55,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:39:55,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:39:55,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:55,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:55,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137026719] [2025-03-09 06:39:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137026719] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:55,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:55,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:55,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304292315] [2025-03-09 06:39:55,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:55,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:55,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:55,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:55,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:55,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2025-03-09 06:39:55,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 112 transitions, 761 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:55,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:55,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2025-03-09 06:39:55,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:56,572 INFO L124 PetriNetUnfolderBase]: 6244/14798 cut-off events. [2025-03-09 06:39:56,572 INFO L125 PetriNetUnfolderBase]: For 61182/62269 co-relation queries the response was YES. [2025-03-09 06:39:56,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46286 conditions, 14798 events. 6244/14798 cut-off events. For 61182/62269 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 152509 event pairs, 1412 based on Foata normal form. 1091/15191 useless extension candidates. Maximal degree in co-relation 44508. Up to 5778 conditions per place. [2025-03-09 06:39:56,701 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 84 selfloop transitions, 15 changer transitions 0/141 dead transitions. [2025-03-09 06:39:56,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 141 transitions, 1200 flow [2025-03-09 06:39:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2025-03-09 06:39:56,702 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2025-03-09 06:39:56,703 INFO L175 Difference]: Start difference. First operand has 137 places, 112 transitions, 761 flow. Second operand 4 states and 280 transitions. [2025-03-09 06:39:56,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 141 transitions, 1200 flow [2025-03-09 06:39:56,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 1166 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:39:56,927 INFO L231 Difference]: Finished difference. Result has 134 places, 110 transitions, 744 flow [2025-03-09 06:39:56,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=744, PETRI_PLACES=134, PETRI_TRANSITIONS=110} [2025-03-09 06:39:56,931 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 45 predicate places. [2025-03-09 06:39:56,931 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 110 transitions, 744 flow [2025-03-09 06:39:56,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:56,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:56,931 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:56,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-09 06:39:56,932 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:56,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:56,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1906647493, now seen corresponding path program 1 times [2025-03-09 06:39:56,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:56,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547697539] [2025-03-09 06:39:56,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:56,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:56,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:39:56,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:39:56,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:56,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:56,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:56,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:56,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547697539] [2025-03-09 06:39:56,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547697539] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:56,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:56,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556655815] [2025-03-09 06:39:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:56,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:56,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:56,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:56,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:56,966 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2025-03-09 06:39:56,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 110 transitions, 744 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:56,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:56,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2025-03-09 06:39:56,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:59,193 INFO L124 PetriNetUnfolderBase]: 12268/28217 cut-off events. [2025-03-09 06:39:59,193 INFO L125 PetriNetUnfolderBase]: For 116083/117957 co-relation queries the response was YES. [2025-03-09 06:39:59,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89545 conditions, 28217 events. 12268/28217 cut-off events. For 116083/117957 co-relation queries the response was YES. Maximal size of possible extension queue 905. Compared 297132 event pairs, 6718 based on Foata normal form. 1496/28868 useless extension candidates. Maximal degree in co-relation 84039. Up to 9734 conditions per place. [2025-03-09 06:39:59,429 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 153 selfloop transitions, 11 changer transitions 0/206 dead transitions. [2025-03-09 06:39:59,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 206 transitions, 1907 flow [2025-03-09 06:39:59,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2025-03-09 06:39:59,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2025-03-09 06:39:59,430 INFO L175 Difference]: Start difference. First operand has 134 places, 110 transitions, 744 flow. Second operand 4 states and 317 transitions. [2025-03-09 06:39:59,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 206 transitions, 1907 flow [2025-03-09 06:39:59,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 206 transitions, 1821 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:59,779 INFO L231 Difference]: Finished difference. Result has 136 places, 120 transitions, 886 flow [2025-03-09 06:39:59,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=886, PETRI_PLACES=136, PETRI_TRANSITIONS=120} [2025-03-09 06:39:59,779 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 47 predicate places. [2025-03-09 06:39:59,780 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 120 transitions, 886 flow [2025-03-09 06:39:59,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:59,780 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:59,780 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:59,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-09 06:39:59,780 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:39:59,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:59,780 INFO L85 PathProgramCache]: Analyzing trace with hash 902398667, now seen corresponding path program 1 times [2025-03-09 06:39:59,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:59,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377583825] [2025-03-09 06:39:59,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:59,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:59,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:39:59,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:39:59,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:59,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:59,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:59,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377583825] [2025-03-09 06:39:59,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377583825] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:59,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:59,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 06:39:59,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204775184] [2025-03-09 06:39:59,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:59,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:59,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:59,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:59,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:59,865 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2025-03-09 06:39:59,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 120 transitions, 886 flow. Second operand has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:59,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:59,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2025-03-09 06:39:59,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:01,865 INFO L124 PetriNetUnfolderBase]: 13390/28828 cut-off events. [2025-03-09 06:40:01,866 INFO L125 PetriNetUnfolderBase]: For 117189/119132 co-relation queries the response was YES. [2025-03-09 06:40:02,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93204 conditions, 28828 events. 13390/28828 cut-off events. For 117189/119132 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 291792 event pairs, 6248 based on Foata normal form. 1463/29542 useless extension candidates. Maximal degree in co-relation 90623. Up to 13021 conditions per place. [2025-03-09 06:40:02,128 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 204 selfloop transitions, 11 changer transitions 0/253 dead transitions. [2025-03-09 06:40:02,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 253 transitions, 2336 flow [2025-03-09 06:40:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 422 transitions. [2025-03-09 06:40:02,129 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7326388888888888 [2025-03-09 06:40:02,129 INFO L175 Difference]: Start difference. First operand has 136 places, 120 transitions, 886 flow. Second operand 6 states and 422 transitions. [2025-03-09 06:40:02,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 253 transitions, 2336 flow [2025-03-09 06:40:02,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 253 transitions, 2309 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:40:02,453 INFO L231 Difference]: Finished difference. Result has 140 places, 117 transitions, 849 flow [2025-03-09 06:40:02,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=849, PETRI_PLACES=140, PETRI_TRANSITIONS=117} [2025-03-09 06:40:02,453 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 51 predicate places. [2025-03-09 06:40:02,453 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 117 transitions, 849 flow [2025-03-09 06:40:02,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.833333333333336) internal successors, (323), 6 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:02,453 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:02,453 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:02,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-09 06:40:02,454 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:02,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash -953871449, now seen corresponding path program 1 times [2025-03-09 06:40:02,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:02,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969299456] [2025-03-09 06:40:02,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:02,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:02,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:40:02,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:40:02,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:02,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:02,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:02,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:02,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969299456] [2025-03-09 06:40:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969299456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:40:02,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7711044] [2025-03-09 06:40:02,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:02,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:02,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:02,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:02,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2025-03-09 06:40:02,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 117 transitions, 849 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:02,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:02,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2025-03-09 06:40:02,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:04,154 INFO L124 PetriNetUnfolderBase]: 11148/26315 cut-off events. [2025-03-09 06:40:04,154 INFO L125 PetriNetUnfolderBase]: For 122750/124766 co-relation queries the response was YES. [2025-03-09 06:40:04,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82660 conditions, 26315 events. 11148/26315 cut-off events. For 122750/124766 co-relation queries the response was YES. Maximal size of possible extension queue 804. Compared 278737 event pairs, 2588 based on Foata normal form. 1883/26945 useless extension candidates. Maximal degree in co-relation 80162. Up to 10640 conditions per place. [2025-03-09 06:40:04,397 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 100 selfloop transitions, 15 changer transitions 0/153 dead transitions. [2025-03-09 06:40:04,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 153 transitions, 1443 flow [2025-03-09 06:40:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:04,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2025-03-09 06:40:04,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2025-03-09 06:40:04,398 INFO L175 Difference]: Start difference. First operand has 140 places, 117 transitions, 849 flow. Second operand 4 states and 276 transitions. [2025-03-09 06:40:04,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 153 transitions, 1443 flow [2025-03-09 06:40:04,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 153 transitions, 1426 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:40:04,913 INFO L231 Difference]: Finished difference. Result has 139 places, 115 transitions, 852 flow [2025-03-09 06:40:04,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=852, PETRI_PLACES=139, PETRI_TRANSITIONS=115} [2025-03-09 06:40:04,914 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 50 predicate places. [2025-03-09 06:40:04,914 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 115 transitions, 852 flow [2025-03-09 06:40:04,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:04,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:04,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:04,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-09 06:40:04,915 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:04,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:04,915 INFO L85 PathProgramCache]: Analyzing trace with hash -464174992, now seen corresponding path program 1 times [2025-03-09 06:40:04,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:04,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402554575] [2025-03-09 06:40:04,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:04,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:04,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:40:04,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:40:04,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:04,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:04,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:04,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:04,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402554575] [2025-03-09 06:40:04,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402554575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:04,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:04,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 06:40:04,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369987939] [2025-03-09 06:40:04,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:04,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 06:40:04,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:04,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 06:40:04,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-09 06:40:05,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 96 [2025-03-09 06:40:05,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 115 transitions, 852 flow. Second operand has 9 states, 9 states have (on average 45.55555555555556) internal successors, (410), 9 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:05,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:05,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 96 [2025-03-09 06:40:05,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:07,222 INFO L124 PetriNetUnfolderBase]: 15834/29876 cut-off events. [2025-03-09 06:40:07,222 INFO L125 PetriNetUnfolderBase]: For 163918/167153 co-relation queries the response was YES. [2025-03-09 06:40:07,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104707 conditions, 29876 events. 15834/29876 cut-off events. For 163918/167153 co-relation queries the response was YES. Maximal size of possible extension queue 874. Compared 273609 event pairs, 738 based on Foata normal form. 3746/32493 useless extension candidates. Maximal degree in co-relation 101999. Up to 7260 conditions per place. [2025-03-09 06:40:07,533 INFO L140 encePairwiseOnDemand]: 84/96 looper letters, 282 selfloop transitions, 28 changer transitions 0/343 dead transitions. [2025-03-09 06:40:07,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 343 transitions, 3716 flow [2025-03-09 06:40:07,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 06:40:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 06:40:07,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 534 transitions. [2025-03-09 06:40:07,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6180555555555556 [2025-03-09 06:40:07,534 INFO L175 Difference]: Start difference. First operand has 139 places, 115 transitions, 852 flow. Second operand 9 states and 534 transitions. [2025-03-09 06:40:07,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 343 transitions, 3716 flow [2025-03-09 06:40:08,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 343 transitions, 3686 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:40:08,353 INFO L231 Difference]: Finished difference. Result has 144 places, 115 transitions, 888 flow [2025-03-09 06:40:08,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=888, PETRI_PLACES=144, PETRI_TRANSITIONS=115} [2025-03-09 06:40:08,353 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 55 predicate places. [2025-03-09 06:40:08,353 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 115 transitions, 888 flow [2025-03-09 06:40:08,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.55555555555556) internal successors, (410), 9 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:08,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:08,354 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:08,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-09 06:40:08,354 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:08,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:08,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1504522119, now seen corresponding path program 1 times [2025-03-09 06:40:08,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:08,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748442608] [2025-03-09 06:40:08,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:08,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:08,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:40:08,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:40:08,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:08,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:08,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:08,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:08,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748442608] [2025-03-09 06:40:08,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748442608] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:08,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:08,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:08,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891098438] [2025-03-09 06:40:08,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:08,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:08,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:08,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:08,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:08,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2025-03-09 06:40:08,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 115 transitions, 888 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:08,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:08,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2025-03-09 06:40:08,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:12,720 INFO L124 PetriNetUnfolderBase]: 22270/49423 cut-off events. [2025-03-09 06:40:12,720 INFO L125 PetriNetUnfolderBase]: For 268354/272749 co-relation queries the response was YES. [2025-03-09 06:40:13,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176475 conditions, 49423 events. 22270/49423 cut-off events. For 268354/272749 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 532396 event pairs, 8508 based on Foata normal form. 3525/52753 useless extension candidates. Maximal degree in co-relation 172750. Up to 17325 conditions per place. [2025-03-09 06:40:13,174 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 170 selfloop transitions, 13 changer transitions 0/222 dead transitions. [2025-03-09 06:40:13,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 222 transitions, 2307 flow [2025-03-09 06:40:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:13,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:13,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2025-03-09 06:40:13,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2025-03-09 06:40:13,175 INFO L175 Difference]: Start difference. First operand has 144 places, 115 transitions, 888 flow. Second operand 4 states and 315 transitions. [2025-03-09 06:40:13,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 222 transitions, 2307 flow [2025-03-09 06:40:14,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 222 transitions, 2220 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-09 06:40:14,177 INFO L231 Difference]: Finished difference. Result has 142 places, 127 transitions, 1025 flow [2025-03-09 06:40:14,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=840, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1025, PETRI_PLACES=142, PETRI_TRANSITIONS=127} [2025-03-09 06:40:14,178 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 53 predicate places. [2025-03-09 06:40:14,178 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 127 transitions, 1025 flow [2025-03-09 06:40:14,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:14,178 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:14,178 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:14,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-09 06:40:14,178 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1786196351, now seen corresponding path program 1 times [2025-03-09 06:40:14,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:14,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101693967] [2025-03-09 06:40:14,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:14,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:14,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:40:14,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:40:14,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:14,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:14,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:14,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101693967] [2025-03-09 06:40:14,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101693967] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:14,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372295403] [2025-03-09 06:40:14,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:14,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:14,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:14,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:14,215 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:40:14,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 127 transitions, 1025 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:14,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:14,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:40:14,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:19,012 INFO L124 PetriNetUnfolderBase]: 25604/53543 cut-off events. [2025-03-09 06:40:19,012 INFO L125 PetriNetUnfolderBase]: For 292801/297762 co-relation queries the response was YES. [2025-03-09 06:40:19,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187893 conditions, 53543 events. 25604/53543 cut-off events. For 292801/297762 co-relation queries the response was YES. Maximal size of possible extension queue 1374. Compared 562194 event pairs, 9988 based on Foata normal form. 4502/57583 useless extension candidates. Maximal degree in co-relation 184109. Up to 20904 conditions per place. [2025-03-09 06:40:19,407 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 149 selfloop transitions, 18 changer transitions 0/202 dead transitions. [2025-03-09 06:40:19,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 202 transitions, 2086 flow [2025-03-09 06:40:19,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:19,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 289 transitions. [2025-03-09 06:40:19,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7526041666666666 [2025-03-09 06:40:19,408 INFO L175 Difference]: Start difference. First operand has 142 places, 127 transitions, 1025 flow. Second operand 4 states and 289 transitions. [2025-03-09 06:40:19,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 202 transitions, 2086 flow [2025-03-09 06:40:20,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 202 transitions, 2070 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:20,671 INFO L231 Difference]: Finished difference. Result has 143 places, 125 transitions, 1020 flow [2025-03-09 06:40:20,671 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=984, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1020, PETRI_PLACES=143, PETRI_TRANSITIONS=125} [2025-03-09 06:40:20,672 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 54 predicate places. [2025-03-09 06:40:20,672 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 125 transitions, 1020 flow [2025-03-09 06:40:20,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:20,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:20,672 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:20,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-09 06:40:20,672 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:20,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:20,672 INFO L85 PathProgramCache]: Analyzing trace with hash 539480241, now seen corresponding path program 1 times [2025-03-09 06:40:20,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:20,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126676456] [2025-03-09 06:40:20,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:20,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:20,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:40:20,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:40:20,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:20,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:20,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:20,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126676456] [2025-03-09 06:40:20,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126676456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:20,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:20,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:40:20,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378914865] [2025-03-09 06:40:20,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:20,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:40:20,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:20,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:40:20,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:40:20,720 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2025-03-09 06:40:20,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 125 transitions, 1020 flow. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:20,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:20,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2025-03-09 06:40:20,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:25,762 INFO L124 PetriNetUnfolderBase]: 28688/54756 cut-off events. [2025-03-09 06:40:25,763 INFO L125 PetriNetUnfolderBase]: For 306720/311720 co-relation queries the response was YES. [2025-03-09 06:40:26,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202638 conditions, 54756 events. 28688/54756 cut-off events. For 306720/311720 co-relation queries the response was YES. Maximal size of possible extension queue 1435. Compared 535682 event pairs, 10748 based on Foata normal form. 5532/59844 useless extension candidates. Maximal degree in co-relation 198871. Up to 22620 conditions per place. [2025-03-09 06:40:26,255 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 265 selfloop transitions, 16 changer transitions 0/314 dead transitions. [2025-03-09 06:40:26,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 314 transitions, 3480 flow [2025-03-09 06:40:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:26,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:26,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2025-03-09 06:40:26,256 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2025-03-09 06:40:26,256 INFO L175 Difference]: Start difference. First operand has 143 places, 125 transitions, 1020 flow. Second operand 6 states and 424 transitions. [2025-03-09 06:40:26,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 314 transitions, 3480 flow [2025-03-09 06:40:27,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 314 transitions, 3335 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-09 06:40:27,910 INFO L231 Difference]: Finished difference. Result has 144 places, 126 transitions, 1011 flow [2025-03-09 06:40:27,910 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1011, PETRI_PLACES=144, PETRI_TRANSITIONS=126} [2025-03-09 06:40:27,912 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 55 predicate places. [2025-03-09 06:40:27,912 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 126 transitions, 1011 flow [2025-03-09 06:40:27,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:27,912 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:27,912 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:27,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-09 06:40:27,912 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:27,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash -534468667, now seen corresponding path program 1 times [2025-03-09 06:40:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:27,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455400145] [2025-03-09 06:40:27,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:27,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 06:40:27,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 06:40:27,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:27,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:27,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:27,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455400145] [2025-03-09 06:40:27,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455400145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:27,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:27,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:27,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330150479] [2025-03-09 06:40:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:27,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:27,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:27,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:27,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2025-03-09 06:40:27,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 126 transitions, 1011 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:27,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:27,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2025-03-09 06:40:27,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:32,824 INFO L124 PetriNetUnfolderBase]: 29012/55871 cut-off events. [2025-03-09 06:40:32,824 INFO L125 PetriNetUnfolderBase]: For 354507/360092 co-relation queries the response was YES. [2025-03-09 06:40:33,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206702 conditions, 55871 events. 29012/55871 cut-off events. For 354507/360092 co-relation queries the response was YES. Maximal size of possible extension queue 1489. Compared 552979 event pairs, 10728 based on Foata normal form. 5174/60313 useless extension candidates. Maximal degree in co-relation 202719. Up to 22756 conditions per place. [2025-03-09 06:40:33,367 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 159 selfloop transitions, 12 changer transitions 0/206 dead transitions. [2025-03-09 06:40:33,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 206 transitions, 2158 flow [2025-03-09 06:40:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:33,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2025-03-09 06:40:33,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7473958333333334 [2025-03-09 06:40:33,369 INFO L175 Difference]: Start difference. First operand has 144 places, 126 transitions, 1011 flow. Second operand 4 states and 287 transitions. [2025-03-09 06:40:33,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 206 transitions, 2158 flow [2025-03-09 06:40:35,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 206 transitions, 2015 flow, removed 6 selfloop flow, removed 7 redundant places. [2025-03-09 06:40:35,111 INFO L231 Difference]: Finished difference. Result has 139 places, 128 transitions, 1012 flow [2025-03-09 06:40:35,112 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1012, PETRI_PLACES=139, PETRI_TRANSITIONS=128} [2025-03-09 06:40:35,112 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 50 predicate places. [2025-03-09 06:40:35,112 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 128 transitions, 1012 flow [2025-03-09 06:40:35,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:35,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:35,112 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:35,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-03-09 06:40:35,112 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:35,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:35,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1502829102, now seen corresponding path program 1 times [2025-03-09 06:40:35,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:35,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461870960] [2025-03-09 06:40:35,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:35,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:35,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:40:35,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:40:35,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:35,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:35,166 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:35,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:35,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461870960] [2025-03-09 06:40:35,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461870960] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:35,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288568553] [2025-03-09 06:40:35,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:35,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:35,169 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) [2025-03-09 06:40:35,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:40:35,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:40:35,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:40:35,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:35,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:35,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:35,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:35,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:40:35,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288568553] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:35,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:40:35,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 06:40:35,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689240464] [2025-03-09 06:40:35,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:35,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:40:35,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:35,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:40:35,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:40:35,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2025-03-09 06:40:35,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 128 transitions, 1012 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:35,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:35,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2025-03-09 06:40:35,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:39,908 INFO L124 PetriNetUnfolderBase]: 22514/48336 cut-off events. [2025-03-09 06:40:39,908 INFO L125 PetriNetUnfolderBase]: For 243700/247581 co-relation queries the response was YES. [2025-03-09 06:40:40,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176678 conditions, 48336 events. 22514/48336 cut-off events. For 243700/247581 co-relation queries the response was YES. Maximal size of possible extension queue 1358. Compared 507778 event pairs, 5036 based on Foata normal form. 3769/51460 useless extension candidates. Maximal degree in co-relation 175153. Up to 14682 conditions per place. [2025-03-09 06:40:40,320 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 295 selfloop transitions, 19 changer transitions 0/349 dead transitions. [2025-03-09 06:40:40,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 349 transitions, 3816 flow [2025-03-09 06:40:40,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:40,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:40,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2025-03-09 06:40:40,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8072916666666666 [2025-03-09 06:40:40,321 INFO L175 Difference]: Start difference. First operand has 139 places, 128 transitions, 1012 flow. Second operand 6 states and 465 transitions. [2025-03-09 06:40:40,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 349 transitions, 3816 flow [2025-03-09 06:40:41,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 349 transitions, 3761 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:40:41,492 INFO L231 Difference]: Finished difference. Result has 142 places, 127 transitions, 1035 flow [2025-03-09 06:40:41,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=997, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1035, PETRI_PLACES=142, PETRI_TRANSITIONS=127} [2025-03-09 06:40:41,493 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 53 predicate places. [2025-03-09 06:40:41,493 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 127 transitions, 1035 flow [2025-03-09 06:40:41,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:41,493 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:41,493 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:40:41,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 06:40:41,694 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,SelfDestructingSolverStorable32 [2025-03-09 06:40:41,694 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-09 06:40:41,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:41,694 INFO L85 PathProgramCache]: Analyzing trace with hash -656937453, now seen corresponding path program 1 times [2025-03-09 06:40:41,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:41,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595523736] [2025-03-09 06:40:41,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:41,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:41,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 06:40:41,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 06:40:41,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:41,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:41,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595523736] [2025-03-09 06:40:41,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595523736] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:40:41,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887590275] [2025-03-09 06:40:41,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:41,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:40:41,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:41,742 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) [2025-03-09 06:40:41,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:40:41,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 06:40:41,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 06:40:41,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:41,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:41,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:40:41,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:40:41,838 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:41,838 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:40:41,896 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:41,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887590275] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:40:41,896 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:40:41,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 06:40:41,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240077291] [2025-03-09 06:40:41,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:40:41,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:40:41,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:41,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:40:41,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:40:41,908 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2025-03-09 06:40:41,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 127 transitions, 1035 flow. Second operand has 12 states, 12 states have (on average 61.75) internal successors, (741), 12 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:41,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:41,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2025-03-09 06:40:41,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand