./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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/chl-file-item-subst.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 d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:24:27,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:24:27,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:24:27,803 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:24:27,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:24:27,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:24:27,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:24:27,824 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:24:27,824 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:24:27,824 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:24:27,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:24:27,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:24:27,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:24:27,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:24:27,825 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:24:27,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:24:27,826 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:24:27,826 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:24:27,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:24:27,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:24:27,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:24:27,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:24:27,827 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:24:27,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:24:27,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:24:27,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:24:27,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:24:27,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:24:27,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:24:27,829 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 -> d7ba2cbd8ed9f48aa977924dd556bad66f28ba8aaa41d75f8db9183096d20ba1 [2025-03-04 15:24:28,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:24:28,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:24:28,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:24:28,034 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:24:28,034 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:24:28,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2025-03-04 15:24:29,118 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd757b3cc/c8e0885647bd4e51ac3f04bf8f5d520a/FLAGee3f613c8 [2025-03-04 15:24:29,335 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:24:29,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2025-03-04 15:24:29,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd757b3cc/c8e0885647bd4e51ac3f04bf8f5d520a/FLAGee3f613c8 [2025-03-04 15:24:29,667 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd757b3cc/c8e0885647bd4e51ac3f04bf8f5d520a [2025-03-04 15:24:29,669 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:24:29,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:24:29,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:24:29,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:24:29,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:24:29,674 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340f9b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29, skipping insertion in model container [2025-03-04 15:24:29,675 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:24:29,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:24:29,809 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:24:29,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:24:29,846 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:24:29,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29 WrapperNode [2025-03-04 15:24:29,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:24:29,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:24:29,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:24:29,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:24:29,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,891 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 240 [2025-03-04 15:24:29,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:24:29,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:24:29,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:24:29,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:24:29,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,919 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]. [2025-03-04 15:24:29,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,929 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,930 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,931 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:24:29,935 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:24:29,935 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:24:29,935 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:24:29,935 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (1/1) ... [2025-03-04 15:24:29,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:24:29,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:29,958 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) [2025-03-04 15:24:29,959 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 [2025-03-04 15:24:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:24:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:24:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:24:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:24:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:24:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-04 15:24:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-04 15:24:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:24:29,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:24:29,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:24:29,975 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:24:30,052 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:24:30,053 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:24:30,341 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:24:30,341 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:24:30,515 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:24:30,516 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:24:30,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:24:30 BoogieIcfgContainer [2025-03-04 15:24:30,516 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:24:30,517 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:24:30,517 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:24:30,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:24:30,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:24:29" (1/3) ... [2025-03-04 15:24:30,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bf2c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:24:30, skipping insertion in model container [2025-03-04 15:24:30,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:24:29" (2/3) ... [2025-03-04 15:24:30,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bf2c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:24:30, skipping insertion in model container [2025-03-04 15:24:30,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:24:30" (3/3) ... [2025-03-04 15:24:30,524 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2025-03-04 15:24:30,539 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:24:30,540 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-subst.wvr.c that has 4 procedures, 90 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-03-04 15:24:30,541 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:24:30,609 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-04 15:24:30,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 107 transitions, 235 flow [2025-03-04 15:24:30,695 INFO L124 PetriNetUnfolderBase]: 18/104 cut-off events. [2025-03-04 15:24:30,698 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 15:24:30,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 18/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 391 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2025-03-04 15:24:30,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 107 transitions, 235 flow [2025-03-04 15:24:30,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 102 transitions, 219 flow [2025-03-04 15:24:30,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:24:30,723 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;@3fcf8af5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:24:30,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-03-04 15:24:30,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:24:30,733 INFO L124 PetriNetUnfolderBase]: 8/45 cut-off events. [2025-03-04 15:24:30,733 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:24:30,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:30,733 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:30,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:30,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:30,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1234947543, now seen corresponding path program 1 times [2025-03-04 15:24:30,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:30,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923190067] [2025-03-04 15:24:30,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:30,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:30,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:24:30,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:24:30,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:30,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:30,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:30,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:30,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923190067] [2025-03-04 15:24:30,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923190067] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:30,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:30,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:30,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858788656] [2025-03-04 15:24:30,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:30,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:30,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:30,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:30,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:31,020 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-04 15:24:31,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 102 transitions, 219 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) [2025-03-04 15:24:31,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:31,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-04 15:24:31,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:32,623 INFO L124 PetriNetUnfolderBase]: 14059/22486 cut-off events. [2025-03-04 15:24:32,624 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2025-03-04 15:24:32,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41488 conditions, 22486 events. 14059/22486 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 1406. Compared 186408 event pairs, 5420 based on Foata normal form. 532/18958 useless extension candidates. Maximal degree in co-relation 40483. Up to 10138 conditions per place. [2025-03-04 15:24:32,842 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 100 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2025-03-04 15:24:32,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 159 transitions, 555 flow [2025-03-04 15:24:32,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:32,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2025-03-04 15:24:32,855 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7850467289719626 [2025-03-04 15:24:32,856 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 219 flow. Second operand 4 states and 336 transitions. [2025-03-04 15:24:32,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 159 transitions, 555 flow [2025-03-04 15:24:32,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 540 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 15:24:32,902 INFO L231 Difference]: Finished difference. Result has 94 places, 104 transitions, 244 flow [2025-03-04 15:24:32,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=104} [2025-03-04 15:24:32,906 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-03-04 15:24:32,907 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 104 transitions, 244 flow [2025-03-04 15:24:32,907 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) [2025-03-04 15:24:32,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:32,907 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:32,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:24:32,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:32,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash -371331192, now seen corresponding path program 1 times [2025-03-04 15:24:32,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:32,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625148552] [2025-03-04 15:24:32,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:32,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:32,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:24:32,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:24:32,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:32,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:32,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:33,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625148552] [2025-03-04 15:24:33,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625148552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:33,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:33,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919779673] [2025-03-04 15:24:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:33,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:33,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:33,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:33,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-03-04 15:24:33,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 104 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:33,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:33,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-03-04 15:24:33,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:34,111 INFO L124 PetriNetUnfolderBase]: 10585/19081 cut-off events. [2025-03-04 15:24:34,112 INFO L125 PetriNetUnfolderBase]: For 3423/3445 co-relation queries the response was YES. [2025-03-04 15:24:34,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36848 conditions, 19081 events. 10585/19081 cut-off events. For 3423/3445 co-relation queries the response was YES. Maximal size of possible extension queue 1213. Compared 175607 event pairs, 3367 based on Foata normal form. 22/16490 useless extension candidates. Maximal degree in co-relation 21643. Up to 7399 conditions per place. [2025-03-04 15:24:34,232 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 68 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2025-03-04 15:24:34,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 130 transitions, 443 flow [2025-03-04 15:24:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:34,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:34,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 311 transitions. [2025-03-04 15:24:34,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7266355140186916 [2025-03-04 15:24:34,234 INFO L175 Difference]: Start difference. First operand has 94 places, 104 transitions, 244 flow. Second operand 4 states and 311 transitions. [2025-03-04 15:24:34,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 130 transitions, 443 flow [2025-03-04 15:24:34,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:24:34,294 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 250 flow [2025-03-04 15:24:34,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2025-03-04 15:24:34,295 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-03-04 15:24:34,295 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 250 flow [2025-03-04 15:24:34,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:34,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:34,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:34,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:24:34,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1381473712, now seen corresponding path program 1 times [2025-03-04 15:24:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:34,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248741888] [2025-03-04 15:24:34,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:34,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:34,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:24:34,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:24:34,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:34,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:34,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:34,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248741888] [2025-03-04 15:24:34,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248741888] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:34,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:34,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:34,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18539433] [2025-03-04 15:24:34,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:34,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:34,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:34,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:34,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:34,408 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2025-03-04 15:24:34,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:34,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:34,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2025-03-04 15:24:34,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:35,341 INFO L124 PetriNetUnfolderBase]: 10457/18631 cut-off events. [2025-03-04 15:24:35,341 INFO L125 PetriNetUnfolderBase]: For 5307/5822 co-relation queries the response was YES. [2025-03-04 15:24:35,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35999 conditions, 18631 events. 10457/18631 cut-off events. For 5307/5822 co-relation queries the response was YES. Maximal size of possible extension queue 1202. Compared 169303 event pairs, 3897 based on Foata normal form. 904/16052 useless extension candidates. Maximal degree in co-relation 22400. Up to 6904 conditions per place. [2025-03-04 15:24:35,446 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 71 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2025-03-04 15:24:35,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 129 transitions, 477 flow [2025-03-04 15:24:35,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:35,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2025-03-04 15:24:35,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2025-03-04 15:24:35,448 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 250 flow. Second operand 4 states and 308 transitions. [2025-03-04 15:24:35,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 129 transitions, 477 flow [2025-03-04 15:24:35,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 463 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:35,475 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 244 flow [2025-03-04 15:24:35,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2025-03-04 15:24:35,476 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-03-04 15:24:35,476 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 244 flow [2025-03-04 15:24:35,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:35,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:35,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:35,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:24:35,477 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:35,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:35,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1373604827, now seen corresponding path program 1 times [2025-03-04 15:24:35,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:35,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133502037] [2025-03-04 15:24:35,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:35,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:35,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:24:35,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:24:35,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:35,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:35,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133502037] [2025-03-04 15:24:35,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133502037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:35,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498235750] [2025-03-04 15:24:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:35,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:35,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:35,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:35,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:35,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2025-03-04 15:24:35,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:35,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:35,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2025-03-04 15:24:35,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:36,510 INFO L124 PetriNetUnfolderBase]: 10607/18849 cut-off events. [2025-03-04 15:24:36,511 INFO L125 PetriNetUnfolderBase]: For 4869/4891 co-relation queries the response was YES. [2025-03-04 15:24:36,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37310 conditions, 18849 events. 10607/18849 cut-off events. For 4869/4891 co-relation queries the response was YES. Maximal size of possible extension queue 1200. Compared 170817 event pairs, 3367 based on Foata normal form. 288/16829 useless extension candidates. Maximal degree in co-relation 22064. Up to 7665 conditions per place. [2025-03-04 15:24:36,597 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2025-03-04 15:24:36,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 127 transitions, 447 flow [2025-03-04 15:24:36,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:36,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:36,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2025-03-04 15:24:36,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2025-03-04 15:24:36,599 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 244 flow. Second operand 4 states and 307 transitions. [2025-03-04 15:24:36,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 127 transitions, 447 flow [2025-03-04 15:24:36,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 437 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:36,645 INFO L231 Difference]: Finished difference. Result has 93 places, 100 transitions, 242 flow [2025-03-04 15:24:36,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=93, PETRI_TRANSITIONS=100} [2025-03-04 15:24:36,646 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2025-03-04 15:24:36,647 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 100 transitions, 242 flow [2025-03-04 15:24:36,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:36,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:36,647 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:36,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:24:36,648 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:36,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:36,649 INFO L85 PathProgramCache]: Analyzing trace with hash -123987218, now seen corresponding path program 1 times [2025-03-04 15:24:36,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:36,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669064527] [2025-03-04 15:24:36,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:36,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:36,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:24:36,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:24:36,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:36,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:36,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:36,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669064527] [2025-03-04 15:24:36,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669064527] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:36,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:36,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:36,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190788991] [2025-03-04 15:24:36,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:36,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:36,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:36,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:36,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:36,733 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-03-04 15:24:36,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 100 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:36,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:36,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-03-04 15:24:36,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:37,589 INFO L124 PetriNetUnfolderBase]: 8675/16503 cut-off events. [2025-03-04 15:24:37,589 INFO L125 PetriNetUnfolderBase]: For 4325/4535 co-relation queries the response was YES. [2025-03-04 15:24:37,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30814 conditions, 16503 events. 8675/16503 cut-off events. For 4325/4535 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 156172 event pairs, 3853 based on Foata normal form. 210/13930 useless extension candidates. Maximal degree in co-relation 19157. Up to 6904 conditions per place. [2025-03-04 15:24:37,687 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2025-03-04 15:24:37,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 127 transitions, 467 flow [2025-03-04 15:24:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2025-03-04 15:24:37,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2025-03-04 15:24:37,690 INFO L175 Difference]: Start difference. First operand has 93 places, 100 transitions, 242 flow. Second operand 4 states and 309 transitions. [2025-03-04 15:24:37,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 127 transitions, 467 flow [2025-03-04 15:24:37,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:37,713 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 238 flow [2025-03-04 15:24:37,713 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2025-03-04 15:24:37,713 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2025-03-04 15:24:37,713 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 238 flow [2025-03-04 15:24:37,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:37,714 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:37,714 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:37,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:24:37,714 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:37,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:37,714 INFO L85 PathProgramCache]: Analyzing trace with hash -367922677, now seen corresponding path program 1 times [2025-03-04 15:24:37,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:37,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322466529] [2025-03-04 15:24:37,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:37,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:37,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:24:37,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:24:37,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:37,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:37,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:37,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:37,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322466529] [2025-03-04 15:24:37,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322466529] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:37,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:37,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:37,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203425804] [2025-03-04 15:24:37,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:37,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:37,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:37,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:37,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:37,776 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-04 15:24:37,777 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:37,777 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:37,777 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-04 15:24:37,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:38,926 INFO L124 PetriNetUnfolderBase]: 11720/20298 cut-off events. [2025-03-04 15:24:38,926 INFO L125 PetriNetUnfolderBase]: For 4446/4446 co-relation queries the response was YES. [2025-03-04 15:24:38,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39951 conditions, 20298 events. 11720/20298 cut-off events. For 4446/4446 co-relation queries the response was YES. Maximal size of possible extension queue 1266. Compared 181648 event pairs, 5591 based on Foata normal form. 266/17849 useless extension candidates. Maximal degree in co-relation 24036. Up to 10172 conditions per place. [2025-03-04 15:24:39,060 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 98 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2025-03-04 15:24:39,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 153 transitions, 560 flow [2025-03-04 15:24:39,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2025-03-04 15:24:39,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7733644859813084 [2025-03-04 15:24:39,062 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 238 flow. Second operand 4 states and 331 transitions. [2025-03-04 15:24:39,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 153 transitions, 560 flow [2025-03-04 15:24:39,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 153 transitions, 543 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:39,219 INFO L231 Difference]: Finished difference. Result has 91 places, 98 transitions, 231 flow [2025-03-04 15:24:39,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=231, PETRI_PLACES=91, PETRI_TRANSITIONS=98} [2025-03-04 15:24:39,222 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2025-03-04 15:24:39,222 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 98 transitions, 231 flow [2025-03-04 15:24:39,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:39,222 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:39,222 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:39,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:24:39,222 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:39,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash -367923670, now seen corresponding path program 1 times [2025-03-04 15:24:39,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:39,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807288057] [2025-03-04 15:24:39,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:39,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:39,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 15:24:39,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 15:24:39,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:39,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:39,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:39,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807288057] [2025-03-04 15:24:39,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807288057] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:39,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:39,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:39,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679607990] [2025-03-04 15:24:39,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:39,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:39,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:39,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:39,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:39,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2025-03-04 15:24:39,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 98 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:39,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:39,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2025-03-04 15:24:39,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:40,251 INFO L124 PetriNetUnfolderBase]: 13986/21999 cut-off events. [2025-03-04 15:24:40,251 INFO L125 PetriNetUnfolderBase]: For 2181/2181 co-relation queries the response was YES. [2025-03-04 15:24:40,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44656 conditions, 21999 events. 13986/21999 cut-off events. For 2181/2181 co-relation queries the response was YES. Maximal size of possible extension queue 1382. Compared 180072 event pairs, 3279 based on Foata normal form. 0/19612 useless extension candidates. Maximal degree in co-relation 27085. Up to 9347 conditions per place. [2025-03-04 15:24:40,329 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 96 selfloop transitions, 6 changer transitions 0/151 dead transitions. [2025-03-04 15:24:40,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 151 transitions, 547 flow [2025-03-04 15:24:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2025-03-04 15:24:40,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7327102803738318 [2025-03-04 15:24:40,332 INFO L175 Difference]: Start difference. First operand has 91 places, 98 transitions, 231 flow. Second operand 5 states and 392 transitions. [2025-03-04 15:24:40,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 151 transitions, 547 flow [2025-03-04 15:24:40,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 151 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:24:40,360 INFO L231 Difference]: Finished difference. Result has 92 places, 97 transitions, 235 flow [2025-03-04 15:24:40,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=92, PETRI_TRANSITIONS=97} [2025-03-04 15:24:40,361 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2025-03-04 15:24:40,361 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 97 transitions, 235 flow [2025-03-04 15:24:40,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:40,361 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:40,361 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:40,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:24:40,361 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:40,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:40,362 INFO L85 PathProgramCache]: Analyzing trace with hash -246711890, now seen corresponding path program 1 times [2025-03-04 15:24:40,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:40,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022832071] [2025-03-04 15:24:40,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:40,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:40,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:24:40,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:24:40,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:40,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:40,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:40,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022832071] [2025-03-04 15:24:40,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022832071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:40,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:40,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:40,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952512544] [2025-03-04 15:24:40,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:40,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:40,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:40,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:40,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:40,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2025-03-04 15:24:40,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 97 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:40,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:40,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2025-03-04 15:24:40,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:41,098 INFO L124 PetriNetUnfolderBase]: 10807/18575 cut-off events. [2025-03-04 15:24:41,098 INFO L125 PetriNetUnfolderBase]: For 5889/6151 co-relation queries the response was YES. [2025-03-04 15:24:41,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35961 conditions, 18575 events. 10807/18575 cut-off events. For 5889/6151 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 162924 event pairs, 4342 based on Foata normal form. 858/16462 useless extension candidates. Maximal degree in co-relation 22336. Up to 7748 conditions per place. [2025-03-04 15:24:41,189 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 70 selfloop transitions, 3 changer transitions 0/122 dead transitions. [2025-03-04 15:24:41,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 122 transitions, 457 flow [2025-03-04 15:24:41,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:41,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:41,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2025-03-04 15:24:41,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2025-03-04 15:24:41,191 INFO L175 Difference]: Start difference. First operand has 92 places, 97 transitions, 235 flow. Second operand 4 states and 307 transitions. [2025-03-04 15:24:41,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 122 transitions, 457 flow [2025-03-04 15:24:41,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 122 transitions, 442 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:41,206 INFO L231 Difference]: Finished difference. Result has 90 places, 95 transitions, 228 flow [2025-03-04 15:24:41,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=90, PETRI_TRANSITIONS=95} [2025-03-04 15:24:41,207 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -4 predicate places. [2025-03-04 15:24:41,207 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 95 transitions, 228 flow [2025-03-04 15:24:41,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:41,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:41,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 15:24:41,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:41,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1479268766, now seen corresponding path program 1 times [2025-03-04 15:24:41,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:41,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64522573] [2025-03-04 15:24:41,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:41,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:41,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 15:24:41,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 15:24:41,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:41,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:41,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:41,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64522573] [2025-03-04 15:24:41,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64522573] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:41,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:41,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:24:41,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341419037] [2025-03-04 15:24:41,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:41,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:24:41,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:41,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:24:41,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:24:41,300 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-04 15:24:41,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:41,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:41,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-04 15:24:41,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:42,122 INFO L124 PetriNetUnfolderBase]: 13986/21547 cut-off events. [2025-03-04 15:24:42,122 INFO L125 PetriNetUnfolderBase]: For 4327/4349 co-relation queries the response was YES. [2025-03-04 15:24:42,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44423 conditions, 21547 events. 13986/21547 cut-off events. For 4327/4349 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 171399 event pairs, 3257 based on Foata normal form. 554/20158 useless extension candidates. Maximal degree in co-relation 25389. Up to 6227 conditions per place. [2025-03-04 15:24:42,219 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 120 selfloop transitions, 9 changer transitions 0/176 dead transitions. [2025-03-04 15:24:42,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 176 transitions, 669 flow [2025-03-04 15:24:42,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2025-03-04 15:24:42,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835 [2025-03-04 15:24:42,221 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 228 flow. Second operand 6 states and 458 transitions. [2025-03-04 15:24:42,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 176 transitions, 669 flow [2025-03-04 15:24:42,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 176 transitions, 651 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:42,262 INFO L231 Difference]: Finished difference. Result has 92 places, 95 transitions, 247 flow [2025-03-04 15:24:42,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=92, PETRI_TRANSITIONS=95} [2025-03-04 15:24:42,262 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2025-03-04 15:24:42,262 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 95 transitions, 247 flow [2025-03-04 15:24:42,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:42,263 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:42,263 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:42,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 15:24:42,263 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:42,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1106436049, now seen corresponding path program 1 times [2025-03-04 15:24:42,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:42,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741519331] [2025-03-04 15:24:42,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:42,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:42,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:42,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:42,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:42,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:42,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:42,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:42,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741519331] [2025-03-04 15:24:42,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741519331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:42,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:42,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:42,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824478232] [2025-03-04 15:24:42,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:42,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:42,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:42,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:42,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:42,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-04 15:24:42,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 247 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) [2025-03-04 15:24:42,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:42,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-04 15:24:42,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:43,331 INFO L124 PetriNetUnfolderBase]: 14167/24837 cut-off events. [2025-03-04 15:24:43,331 INFO L125 PetriNetUnfolderBase]: For 14530/15612 co-relation queries the response was YES. [2025-03-04 15:24:43,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50716 conditions, 24837 events. 14167/24837 cut-off events. For 14530/15612 co-relation queries the response was YES. Maximal size of possible extension queue 1480. Compared 229792 event pairs, 6696 based on Foata normal form. 900/21902 useless extension candidates. Maximal degree in co-relation 31070. Up to 11994 conditions per place. [2025-03-04 15:24:43,427 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 105 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2025-03-04 15:24:43,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 157 transitions, 667 flow [2025-03-04 15:24:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:43,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2025-03-04 15:24:43,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7710280373831776 [2025-03-04 15:24:43,429 INFO L175 Difference]: Start difference. First operand has 92 places, 95 transitions, 247 flow. Second operand 4 states and 330 transitions. [2025-03-04 15:24:43,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 157 transitions, 667 flow [2025-03-04 15:24:43,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 157 transitions, 636 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:43,483 INFO L231 Difference]: Finished difference. Result has 93 places, 97 transitions, 261 flow [2025-03-04 15:24:43,484 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=93, PETRI_TRANSITIONS=97} [2025-03-04 15:24:43,484 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2025-03-04 15:24:43,484 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 97 transitions, 261 flow [2025-03-04 15:24:43,484 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) [2025-03-04 15:24:43,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:43,484 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:43,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 15:24:43,484 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:43,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:43,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1106435056, now seen corresponding path program 1 times [2025-03-04 15:24:43,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:43,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797362476] [2025-03-04 15:24:43,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:43,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:43,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:43,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:43,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:43,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:43,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:43,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797362476] [2025-03-04 15:24:43,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797362476] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:43,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:43,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:43,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148708991] [2025-03-04 15:24:43,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:43,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:43,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:43,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:43,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2025-03-04 15:24:43,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 97 transitions, 261 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:43,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:43,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2025-03-04 15:24:43,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:44,765 INFO L124 PetriNetUnfolderBase]: 16877/26759 cut-off events. [2025-03-04 15:24:44,765 INFO L125 PetriNetUnfolderBase]: For 12885/14325 co-relation queries the response was YES. [2025-03-04 15:24:44,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59122 conditions, 26759 events. 16877/26759 cut-off events. For 12885/14325 co-relation queries the response was YES. Maximal size of possible extension queue 1615. Compared 224623 event pairs, 3854 based on Foata normal form. 1142/25780 useless extension candidates. Maximal degree in co-relation 38825. Up to 11572 conditions per place. [2025-03-04 15:24:44,889 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 104 selfloop transitions, 6 changer transitions 0/155 dead transitions. [2025-03-04 15:24:44,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 155 transitions, 655 flow [2025-03-04 15:24:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2025-03-04 15:24:44,891 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2025-03-04 15:24:44,891 INFO L175 Difference]: Start difference. First operand has 93 places, 97 transitions, 261 flow. Second operand 5 states and 390 transitions. [2025-03-04 15:24:44,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 155 transitions, 655 flow [2025-03-04 15:24:44,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 155 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:44,998 INFO L231 Difference]: Finished difference. Result has 96 places, 97 transitions, 275 flow [2025-03-04 15:24:44,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=275, PETRI_PLACES=96, PETRI_TRANSITIONS=97} [2025-03-04 15:24:44,999 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2025-03-04 15:24:44,999 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 97 transitions, 275 flow [2025-03-04 15:24:44,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:44,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:44,999 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:44,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 15:24:44,999 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:44,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:44,999 INFO L85 PathProgramCache]: Analyzing trace with hash 941866703, now seen corresponding path program 1 times [2025-03-04 15:24:44,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:44,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093995123] [2025-03-04 15:24:44,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:45,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:45,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:45,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:45,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:45,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:45,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:45,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093995123] [2025-03-04 15:24:45,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093995123] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:45,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:45,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:45,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267241065] [2025-03-04 15:24:45,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:45,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:45,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:45,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:45,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:45,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2025-03-04 15:24:45,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 97 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:45,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:45,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2025-03-04 15:24:45,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:46,271 INFO L124 PetriNetUnfolderBase]: 10926/20443 cut-off events. [2025-03-04 15:24:46,271 INFO L125 PetriNetUnfolderBase]: For 12034/13081 co-relation queries the response was YES. [2025-03-04 15:24:46,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42739 conditions, 20443 events. 10926/20443 cut-off events. For 12034/13081 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 195407 event pairs, 5190 based on Foata normal form. 873/18928 useless extension candidates. Maximal degree in co-relation 29433. Up to 9311 conditions per place. [2025-03-04 15:24:46,410 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 76 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2025-03-04 15:24:46,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 127 transitions, 549 flow [2025-03-04 15:24:46,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:46,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2025-03-04 15:24:46,412 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2025-03-04 15:24:46,412 INFO L175 Difference]: Start difference. First operand has 96 places, 97 transitions, 275 flow. Second operand 4 states and 308 transitions. [2025-03-04 15:24:46,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 127 transitions, 549 flow [2025-03-04 15:24:46,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 127 transitions, 534 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:46,455 INFO L231 Difference]: Finished difference. Result has 95 places, 96 transitions, 270 flow [2025-03-04 15:24:46,455 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2025-03-04 15:24:46,455 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2025-03-04 15:24:46,455 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 270 flow [2025-03-04 15:24:46,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:46,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:46,455 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:46,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 15:24:46,456 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:46,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:46,456 INFO L85 PathProgramCache]: Analyzing trace with hash -468618927, now seen corresponding path program 1 times [2025-03-04 15:24:46,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:46,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851944685] [2025-03-04 15:24:46,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:46,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:46,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:24:46,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:24:46,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:46,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:46,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:46,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:46,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851944685] [2025-03-04 15:24:46,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851944685] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:46,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:46,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:46,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271321872] [2025-03-04 15:24:46,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:46,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:46,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:46,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:46,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:46,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-04 15:24:46,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 270 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) [2025-03-04 15:24:46,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:46,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-04 15:24:46,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:47,859 INFO L124 PetriNetUnfolderBase]: 16726/26282 cut-off events. [2025-03-04 15:24:47,860 INFO L125 PetriNetUnfolderBase]: For 14961/15740 co-relation queries the response was YES. [2025-03-04 15:24:47,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59626 conditions, 26282 events. 16726/26282 cut-off events. For 14961/15740 co-relation queries the response was YES. Maximal size of possible extension queue 1519. Compared 217524 event pairs, 6616 based on Foata normal form. 1013/25190 useless extension candidates. Maximal degree in co-relation 41026. Up to 12435 conditions per place. [2025-03-04 15:24:47,957 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 106 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2025-03-04 15:24:47,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 156 transitions, 669 flow [2025-03-04 15:24:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:47,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2025-03-04 15:24:47,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467 [2025-03-04 15:24:47,958 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 270 flow. Second operand 4 states and 329 transitions. [2025-03-04 15:24:47,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 156 transitions, 669 flow [2025-03-04 15:24:48,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 156 transitions, 652 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 15:24:48,009 INFO L231 Difference]: Finished difference. Result has 94 places, 96 transitions, 274 flow [2025-03-04 15:24:48,009 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=94, PETRI_TRANSITIONS=96} [2025-03-04 15:24:48,009 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2025-03-04 15:24:48,009 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 96 transitions, 274 flow [2025-03-04 15:24:48,009 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) [2025-03-04 15:24:48,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:48,010 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:48,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-04 15:24:48,010 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:48,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash -60250953, now seen corresponding path program 1 times [2025-03-04 15:24:48,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:48,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247156230] [2025-03-04 15:24:48,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:48,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:24:48,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:24:48,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:48,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:48,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:48,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247156230] [2025-03-04 15:24:48,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247156230] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:48,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:48,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:24:48,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113672811] [2025-03-04 15:24:48,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:48,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:24:48,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:48,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:24:48,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:24:48,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-04 15:24:48,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:48,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:48,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-04 15:24:48,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:49,297 INFO L124 PetriNetUnfolderBase]: 18085/28125 cut-off events. [2025-03-04 15:24:49,297 INFO L125 PetriNetUnfolderBase]: For 21412/22576 co-relation queries the response was YES. [2025-03-04 15:24:49,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66304 conditions, 28125 events. 18085/28125 cut-off events. For 21412/22576 co-relation queries the response was YES. Maximal size of possible extension queue 1674. Compared 231279 event pairs, 4142 based on Foata normal form. 1858/27707 useless extension candidates. Maximal degree in co-relation 53409. Up to 7779 conditions per place. [2025-03-04 15:24:49,481 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 134 selfloop transitions, 9 changer transitions 0/186 dead transitions. [2025-03-04 15:24:49,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 186 transitions, 860 flow [2025-03-04 15:24:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:49,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2025-03-04 15:24:49,482 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7087227414330218 [2025-03-04 15:24:49,482 INFO L175 Difference]: Start difference. First operand has 94 places, 96 transitions, 274 flow. Second operand 6 states and 455 transitions. [2025-03-04 15:24:49,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 186 transitions, 860 flow [2025-03-04 15:24:49,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 186 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:49,588 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 295 flow [2025-03-04 15:24:49,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2025-03-04 15:24:49,588 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2025-03-04 15:24:49,588 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 295 flow [2025-03-04 15:24:49,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:49,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:49,589 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:49,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-04 15:24:49,589 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:49,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:49,589 INFO L85 PathProgramCache]: Analyzing trace with hash -949089929, now seen corresponding path program 1 times [2025-03-04 15:24:49,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:49,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180060895] [2025-03-04 15:24:49,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:49,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:49,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 15:24:49,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 15:24:49,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:49,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:49,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:49,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180060895] [2025-03-04 15:24:49,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180060895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:49,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:49,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:24:49,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492786582] [2025-03-04 15:24:49,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:49,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:49,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:49,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:49,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:49,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-04 15:24:49,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 295 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) [2025-03-04 15:24:49,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:49,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-04 15:24:49,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:50,935 INFO L124 PetriNetUnfolderBase]: 17679/26958 cut-off events. [2025-03-04 15:24:50,935 INFO L125 PetriNetUnfolderBase]: For 20624/21740 co-relation queries the response was YES. [2025-03-04 15:24:50,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66852 conditions, 26958 events. 17679/26958 cut-off events. For 20624/21740 co-relation queries the response was YES. Maximal size of possible extension queue 1617. Compared 215246 event pairs, 7210 based on Foata normal form. 1463/26380 useless extension candidates. Maximal degree in co-relation 54061. Up to 13239 conditions per place. [2025-03-04 15:24:51,058 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 167 selfloop transitions, 8 changer transitions 0/216 dead transitions. [2025-03-04 15:24:51,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 216 transitions, 1025 flow [2025-03-04 15:24:51,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:51,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:51,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2025-03-04 15:24:51,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2025-03-04 15:24:51,059 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 295 flow. Second operand 6 states and 486 transitions. [2025-03-04 15:24:51,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 216 transitions, 1025 flow [2025-03-04 15:24:51,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 216 transitions, 1007 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-04 15:24:51,215 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 300 flow [2025-03-04 15:24:51,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2025-03-04 15:24:51,215 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2025-03-04 15:24:51,215 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 300 flow [2025-03-04 15:24:51,216 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) [2025-03-04 15:24:51,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:51,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:51,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 15:24:51,216 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:51,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1105128622, now seen corresponding path program 1 times [2025-03-04 15:24:51,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:51,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954889736] [2025-03-04 15:24:51,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:51,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:51,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 15:24:51,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 15:24:51,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:51,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:51,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:51,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954889736] [2025-03-04 15:24:51,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954889736] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:51,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:51,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:51,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085668238] [2025-03-04 15:24:51,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:51,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:51,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:51,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:51,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:51,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2025-03-04 15:24:51,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 300 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:51,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:51,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2025-03-04 15:24:51,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:52,530 INFO L124 PetriNetUnfolderBase]: 18071/30961 cut-off events. [2025-03-04 15:24:52,531 INFO L125 PetriNetUnfolderBase]: For 33680/35867 co-relation queries the response was YES. [2025-03-04 15:24:52,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71886 conditions, 30961 events. 18071/30961 cut-off events. For 33680/35867 co-relation queries the response was YES. Maximal size of possible extension queue 1678. Compared 286010 event pairs, 9143 based on Foata normal form. 2187/29616 useless extension candidates. Maximal degree in co-relation 58491. Up to 15891 conditions per place. [2025-03-04 15:24:52,784 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 118 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2025-03-04 15:24:52,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 166 transitions, 838 flow [2025-03-04 15:24:52,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:52,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2025-03-04 15:24:52,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7663551401869159 [2025-03-04 15:24:52,789 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 300 flow. Second operand 4 states and 328 transitions. [2025-03-04 15:24:52,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 166 transitions, 838 flow [2025-03-04 15:24:52,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 166 transitions, 813 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-03-04 15:24:52,842 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 318 flow [2025-03-04 15:24:52,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2025-03-04 15:24:52,843 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2025-03-04 15:24:52,843 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 318 flow [2025-03-04 15:24:52,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:52,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:52,843 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:52,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 15:24:52,843 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:52,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:52,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1105129615, now seen corresponding path program 1 times [2025-03-04 15:24:52,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:52,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030981140] [2025-03-04 15:24:52,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:52,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:52,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 15:24:52,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 15:24:52,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:52,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:52,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:52,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:52,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030981140] [2025-03-04 15:24:52,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030981140] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:52,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:52,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:52,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683958304] [2025-03-04 15:24:52,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:52,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:52,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:52,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:52,900 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:52,924 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2025-03-04 15:24:52,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 318 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:52,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:52,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2025-03-04 15:24:52,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:54,359 INFO L124 PetriNetUnfolderBase]: 21212/33178 cut-off events. [2025-03-04 15:24:54,359 INFO L125 PetriNetUnfolderBase]: For 38861/41594 co-relation queries the response was YES. [2025-03-04 15:24:54,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83218 conditions, 33178 events. 21212/33178 cut-off events. For 38861/41594 co-relation queries the response was YES. Maximal size of possible extension queue 1805. Compared 278239 event pairs, 5615 based on Foata normal form. 2733/34036 useless extension candidates. Maximal degree in co-relation 67766. Up to 13581 conditions per place. [2025-03-04 15:24:54,575 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 117 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2025-03-04 15:24:54,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 164 transitions, 832 flow [2025-03-04 15:24:54,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:54,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 388 transitions. [2025-03-04 15:24:54,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7252336448598131 [2025-03-04 15:24:54,577 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 318 flow. Second operand 5 states and 388 transitions. [2025-03-04 15:24:54,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 164 transitions, 832 flow [2025-03-04 15:24:54,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 164 transitions, 829 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:54,727 INFO L231 Difference]: Finished difference. Result has 105 places, 98 transitions, 332 flow [2025-03-04 15:24:54,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=332, PETRI_PLACES=105, PETRI_TRANSITIONS=98} [2025-03-04 15:24:54,728 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2025-03-04 15:24:54,728 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 98 transitions, 332 flow [2025-03-04 15:24:54,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:54,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:54,728 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:54,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 15:24:54,728 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:54,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 100721013, now seen corresponding path program 1 times [2025-03-04 15:24:54,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:54,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005595857] [2025-03-04 15:24:54,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:54,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:54,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 15:24:54,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 15:24:54,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:54,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:54,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:54,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005595857] [2025-03-04 15:24:54,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005595857] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:54,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:54,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:24:54,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720312601] [2025-03-04 15:24:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:54,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:24:54,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:54,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:24:54,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 15:24:54,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-04 15:24:54,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 98 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:54,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:54,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-04 15:24:54,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:56,447 INFO L124 PetriNetUnfolderBase]: 21212/32800 cut-off events. [2025-03-04 15:24:56,447 INFO L125 PetriNetUnfolderBase]: For 43397/46130 co-relation queries the response was YES. [2025-03-04 15:24:56,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85489 conditions, 32800 events. 21212/32800 cut-off events. For 43397/46130 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 270853 event pairs, 5615 based on Foata normal form. 3489/34414 useless extension candidates. Maximal degree in co-relation 69723. Up to 10190 conditions per place. [2025-03-04 15:24:56,644 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 147 selfloop transitions, 9 changer transitions 0/197 dead transitions. [2025-03-04 15:24:56,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 197 transitions, 1046 flow [2025-03-04 15:24:56,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2025-03-04 15:24:56,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7040498442367601 [2025-03-04 15:24:56,646 INFO L175 Difference]: Start difference. First operand has 105 places, 98 transitions, 332 flow. Second operand 6 states and 452 transitions. [2025-03-04 15:24:56,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 197 transitions, 1046 flow [2025-03-04 15:24:56,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 197 transitions, 1037 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:24:56,778 INFO L231 Difference]: Finished difference. Result has 107 places, 98 transitions, 348 flow [2025-03-04 15:24:56,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=348, PETRI_PLACES=107, PETRI_TRANSITIONS=98} [2025-03-04 15:24:56,778 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2025-03-04 15:24:56,778 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 98 transitions, 348 flow [2025-03-04 15:24:56,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:56,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:56,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:56,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 15:24:56,779 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-04 15:24:56,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:56,779 INFO L85 PathProgramCache]: Analyzing trace with hash -253926248, now seen corresponding path program 1 times [2025-03-04 15:24:56,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:56,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162225781] [2025-03-04 15:24:56,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:56,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:56,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 15:24:56,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 15:24:56,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:56,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:56,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:56,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162225781] [2025-03-04 15:24:56,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162225781] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:56,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:56,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 15:24:56,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51265909] [2025-03-04 15:24:56,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:56,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:56,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:56,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:56,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:56,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2025-03-04 15:24:56,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 98 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:56,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:56,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2025-03-04 15:24:56,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:58,627 INFO L124 PetriNetUnfolderBase]: 20834/31454 cut-off events. [2025-03-04 15:24:58,627 INFO L125 PetriNetUnfolderBase]: For 43552/46234 co-relation queries the response was YES. [2025-03-04 15:24:58,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86132 conditions, 31454 events. 20834/31454 cut-off events. For 43552/46234 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 252952 event pairs, 9143 based on Foata normal form. 3060/33389 useless extension candidates. Maximal degree in co-relation 70213. Up to 16269 conditions per place. [2025-03-04 15:24:58,742 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 0 selfloop transitions, 0 changer transitions 230/230 dead transitions. [2025-03-04 15:24:58,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 230 transitions, 1262 flow [2025-03-04 15:24:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:24:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:24:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2025-03-04 15:24:58,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7507788161993769 [2025-03-04 15:24:58,744 INFO L175 Difference]: Start difference. First operand has 107 places, 98 transitions, 348 flow. Second operand 6 states and 482 transitions. [2025-03-04 15:24:58,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 230 transitions, 1262 flow [2025-03-04 15:24:58,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 230 transitions, 1244 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-04 15:24:58,921 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2025-03-04 15:24:58,921 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2025-03-04 15:24:58,921 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2025-03-04 15:24:58,921 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2025-03-04 15:24:58,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:58,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-03-04 15:24:58,924 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-03-04 15:24:58,925 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-03-04 15:24:58,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 15:24:58,925 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:58,930 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:24:58,930 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:24:58,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:24:58 BasicIcfg [2025-03-04 15:24:58,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:24:58,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:24:58,936 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:24:58,936 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:24:58,937 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:24:30" (3/4) ... [2025-03-04 15:24:58,938 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:24:58,940 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-04 15:24:58,940 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-04 15:24:58,940 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-04 15:24:58,943 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2025-03-04 15:24:58,943 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 15:24:58,943 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-03-04 15:24:58,943 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-04 15:24:59,010 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:24:59,010 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:24:59,011 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:24:59,011 INFO L158 Benchmark]: Toolchain (without parser) took 29341.05ms. Allocated memory was 167.8MB in the beginning and 3.8GB in the end (delta: 3.7GB). Free memory was 123.1MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 614.0MB. Max. memory is 16.1GB. [2025-03-04 15:24:59,012 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:24:59,012 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.55ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 111.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:24:59,012 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.57ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 109.0MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:24:59,012 INFO L158 Benchmark]: Boogie Preprocessor took 41.08ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 106.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:24:59,013 INFO L158 Benchmark]: IcfgBuilder took 581.44ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 52.8MB in the end (delta: 54.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-04 15:24:59,013 INFO L158 Benchmark]: TraceAbstraction took 28418.16ms. Allocated memory was 167.8MB in the beginning and 3.8GB in the end (delta: 3.7GB). Free memory was 52.1MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2025-03-04 15:24:59,014 INFO L158 Benchmark]: Witness Printer took 74.73ms. Allocated memory is still 3.8GB. Free memory was 3.2GB in the beginning and 3.2GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:24:59,015 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.55ms. Allocated memory is still 167.8MB. Free memory was 123.1MB in the beginning and 111.4MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.57ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 109.0MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.08ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 106.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 581.44ms. Allocated memory is still 167.8MB. Free memory was 106.8MB in the beginning and 52.8MB in the end (delta: 54.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 28418.16ms. Allocated memory was 167.8MB in the beginning and 3.8GB in the end (delta: 3.7GB). Free memory was 52.1MB in the beginning and 3.2GB in the end (delta: -3.1GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Witness Printer took 74.73ms. Allocated memory is still 3.8GB. Free memory was 3.2GB in the beginning and 3.2GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 171 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 28.3s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2125 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1862 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 108 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4240 IncrementalHoareTripleChecker+Invalid, 4338 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 95 mSDtfsCounter, 4240 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=18, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 791 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 15:24:59,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE