./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-file-item-symm.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 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:38:04,647 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:38:04,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:38:04,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:38:04,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:38:04,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:38:04,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:38:04,716 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:38:04,717 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:38:04,717 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:38:04,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:38:04,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:38:04,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:38:04,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:38:04,718 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:38:04,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:38:04,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:38:04,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:38:04,720 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:38:04,720 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:38:04,720 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:38:04,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:38:04,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:38:04,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:38:04,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:38:04,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:38:04,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:38:04,721 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 -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2025-03-09 06:38:04,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:38:04,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:38:04,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:38:04,956 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:38:04,956 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:38:04,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2025-03-09 06:38:06,134 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7653bfd7/ca906048853d47fe837e88571058c41b/FLAG41b1a18fd [2025-03-09 06:38:06,330 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:38:06,330 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2025-03-09 06:38:06,338 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7653bfd7/ca906048853d47fe837e88571058c41b/FLAG41b1a18fd [2025-03-09 06:38:06,369 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7653bfd7/ca906048853d47fe837e88571058c41b [2025-03-09 06:38:06,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:38:06,378 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:38:06,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:38:06,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:38:06,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:38:06,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d0c8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06, skipping insertion in model container [2025-03-09 06:38:06,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:38:06,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:38:06,533 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:38:06,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:38:06,567 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:38:06,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06 WrapperNode [2025-03-09 06:38:06,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:38:06,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:38:06,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:38:06,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:38:06,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,599 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 171 [2025-03-09 06:38:06,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:38:06,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:38:06,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:38:06,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:38:06,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,623 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 06:38:06,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:38:06,641 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:38:06,641 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:38:06,641 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:38:06,642 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (1/1) ... [2025-03-09 06:38:06,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:38:06,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:38:06,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:38:06,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:38:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:38:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:38:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:38:06,686 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:38:06,686 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:38:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:38:06,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:38:06,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:38:06,687 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:38:06,759 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:38:06,761 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:38:07,047 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:38:07,047 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:38:07,234 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:38:07,237 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:38:07,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:38:07 BoogieIcfgContainer [2025-03-09 06:38:07,237 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:38:07,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:38:07,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:38:07,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:38:07,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:38:06" (1/3) ... [2025-03-09 06:38:07,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1e0d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:38:07, skipping insertion in model container [2025-03-09 06:38:07,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:38:06" (2/3) ... [2025-03-09 06:38:07,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1e0d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:38:07, skipping insertion in model container [2025-03-09 06:38:07,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:38:07" (3/3) ... [2025-03-09 06:38:07,245 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2025-03-09 06:38:07,256 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:38:07,258 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-symm.wvr.c that has 3 procedures, 61 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-03-09 06:38:07,258 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:38:07,338 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 06:38:07,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 72 transitions, 158 flow [2025-03-09 06:38:07,418 INFO L124 PetriNetUnfolderBase]: 12/70 cut-off events. [2025-03-09 06:38:07,419 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 06:38:07,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 70 events. 12/70 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 214 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2025-03-09 06:38:07,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 72 transitions, 158 flow [2025-03-09 06:38:07,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 68 transitions, 145 flow [2025-03-09 06:38:07,441 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:38:07,454 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;@81d9478, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:38:07,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2025-03-09 06:38:07,463 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:38:07,463 INFO L124 PetriNetUnfolderBase]: 6/34 cut-off events. [2025-03-09 06:38:07,463 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:38:07,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:07,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:07,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:07,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash -348437338, now seen corresponding path program 1 times [2025-03-09 06:38:07,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:07,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783400828] [2025-03-09 06:38:07,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:07,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:07,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:38:07,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:38:07,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:07,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:07,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783400828] [2025-03-09 06:38:07,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783400828] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:07,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:07,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:07,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610223532] [2025-03-09 06:38:07,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:07,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:07,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:07,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:07,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:07,775 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-09 06:38:07,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:07,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:07,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-09 06:38:07,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:08,091 INFO L124 PetriNetUnfolderBase]: 775/1531 cut-off events. [2025-03-09 06:38:08,091 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-03-09 06:38:08,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2754 conditions, 1531 events. 775/1531 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10496 event pairs, 282 based on Foata normal form. 48/1246 useless extension candidates. Maximal degree in co-relation 2685. Up to 647 conditions per place. [2025-03-09 06:38:08,110 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 60 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2025-03-09 06:38:08,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 99 transitions, 343 flow [2025-03-09 06:38:08,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:08,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:08,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2025-03-09 06:38:08,119 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2025-03-09 06:38:08,121 INFO L175 Difference]: Start difference. First operand has 63 places, 68 transitions, 145 flow. Second operand 4 states and 212 transitions. [2025-03-09 06:38:08,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 99 transitions, 343 flow [2025-03-09 06:38:08,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 99 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:08,132 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 174 flow [2025-03-09 06:38:08,134 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2025-03-09 06:38:08,137 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 2 predicate places. [2025-03-09 06:38:08,138 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 174 flow [2025-03-09 06:38:08,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:08,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:08,138 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:08,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:38:08,138 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:08,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2083344870, now seen corresponding path program 1 times [2025-03-09 06:38:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:08,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812434563] [2025-03-09 06:38:08,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:08,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:38:08,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:38:08,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:08,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:08,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:08,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812434563] [2025-03-09 06:38:08,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812434563] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:08,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:08,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:38:08,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979166134] [2025-03-09 06:38:08,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:08,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:08,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:08,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:08,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:08,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2025-03-09 06:38:08,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:08,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:08,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2025-03-09 06:38:08,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:08,451 INFO L124 PetriNetUnfolderBase]: 591/1348 cut-off events. [2025-03-09 06:38:08,451 INFO L125 PetriNetUnfolderBase]: For 307/309 co-relation queries the response was YES. [2025-03-09 06:38:08,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1348 events. 591/1348 cut-off events. For 307/309 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9734 event pairs, 177 based on Foata normal form. 2/1140 useless extension candidates. Maximal degree in co-relation 1872. Up to 469 conditions per place. [2025-03-09 06:38:08,460 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 41 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2025-03-09 06:38:08,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 83 transitions, 292 flow [2025-03-09 06:38:08,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:08,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2025-03-09 06:38:08,461 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2025-03-09 06:38:08,461 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 174 flow. Second operand 4 states and 200 transitions. [2025-03-09 06:38:08,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 83 transitions, 292 flow [2025-03-09 06:38:08,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 83 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:38:08,465 INFO L231 Difference]: Finished difference. Result has 67 places, 69 transitions, 180 flow [2025-03-09 06:38:08,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=67, PETRI_TRANSITIONS=69} [2025-03-09 06:38:08,466 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2025-03-09 06:38:08,466 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 69 transitions, 180 flow [2025-03-09 06:38:08,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:08,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:08,466 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:08,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:38:08,466 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:08,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:08,468 INFO L85 PathProgramCache]: Analyzing trace with hash 159151242, now seen corresponding path program 1 times [2025-03-09 06:38:08,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:08,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996839116] [2025-03-09 06:38:08,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:08,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:08,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:38:08,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:38:08,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:08,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:08,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:08,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996839116] [2025-03-09 06:38:08,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996839116] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:08,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:08,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:38:08,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290874465] [2025-03-09 06:38:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:08,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:08,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:08,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:08,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:08,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2025-03-09 06:38:08,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:08,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:08,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2025-03-09 06:38:08,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:08,746 INFO L124 PetriNetUnfolderBase]: 593/1328 cut-off events. [2025-03-09 06:38:08,746 INFO L125 PetriNetUnfolderBase]: For 567/569 co-relation queries the response was YES. [2025-03-09 06:38:08,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 1328 events. 593/1328 cut-off events. For 567/569 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9467 event pairs, 177 based on Foata normal form. 26/1144 useless extension candidates. Maximal degree in co-relation 1924. Up to 493 conditions per place. [2025-03-09 06:38:08,752 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 42 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2025-03-09 06:38:08,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 298 flow [2025-03-09 06:38:08,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2025-03-09 06:38:08,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-03-09 06:38:08,754 INFO L175 Difference]: Start difference. First operand has 67 places, 69 transitions, 180 flow. Second operand 4 states and 196 transitions. [2025-03-09 06:38:08,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 298 flow [2025-03-09 06:38:08,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 82 transitions, 290 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:08,758 INFO L231 Difference]: Finished difference. Result has 66 places, 68 transitions, 176 flow [2025-03-09 06:38:08,759 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=66, PETRI_TRANSITIONS=68} [2025-03-09 06:38:08,760 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2025-03-09 06:38:08,760 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 68 transitions, 176 flow [2025-03-09 06:38:08,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:08,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:08,761 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:08,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:38:08,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:08,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:08,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1586123623, now seen corresponding path program 1 times [2025-03-09 06:38:08,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:08,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023973577] [2025-03-09 06:38:08,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:08,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:08,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:38:08,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:38:08,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:08,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:08,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:08,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:08,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023973577] [2025-03-09 06:38:08,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023973577] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:08,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:08,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:08,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345706810] [2025-03-09 06:38:08,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:08,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:08,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:08,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:08,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:08,841 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-09 06:38:08,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:08,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:08,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-09 06:38:08,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:09,013 INFO L124 PetriNetUnfolderBase]: 914/1865 cut-off events. [2025-03-09 06:38:09,013 INFO L125 PetriNetUnfolderBase]: For 755/790 co-relation queries the response was YES. [2025-03-09 06:38:09,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3753 conditions, 1865 events. 914/1865 cut-off events. For 755/790 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 13453 event pairs, 356 based on Foata normal form. 89/1605 useless extension candidates. Maximal degree in co-relation 2214. Up to 788 conditions per place. [2025-03-09 06:38:09,023 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 64 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2025-03-09 06:38:09,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 430 flow [2025-03-09 06:38:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2025-03-09 06:38:09,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2025-03-09 06:38:09,025 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 176 flow. Second operand 4 states and 210 transitions. [2025-03-09 06:38:09,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 430 flow [2025-03-09 06:38:09,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 101 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:09,052 INFO L231 Difference]: Finished difference. Result has 68 places, 70 transitions, 202 flow [2025-03-09 06:38:09,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2025-03-09 06:38:09,053 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2025-03-09 06:38:09,053 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 202 flow [2025-03-09 06:38:09,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:09,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:09,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:38:09,054 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:09,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:09,054 INFO L85 PathProgramCache]: Analyzing trace with hash 638721673, now seen corresponding path program 1 times [2025-03-09 06:38:09,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:09,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606492433] [2025-03-09 06:38:09,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:09,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:09,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:38:09,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:38:09,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:09,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:09,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:09,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606492433] [2025-03-09 06:38:09,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606492433] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:09,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:09,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:09,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885933084] [2025-03-09 06:38:09,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:09,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:09,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:09,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:09,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:09,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-09 06:38:09,129 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:09,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-09 06:38:09,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:09,305 INFO L124 PetriNetUnfolderBase]: 761/1764 cut-off events. [2025-03-09 06:38:09,305 INFO L125 PetriNetUnfolderBase]: For 765/798 co-relation queries the response was YES. [2025-03-09 06:38:09,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3628 conditions, 1764 events. 761/1764 cut-off events. For 765/798 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 13360 event pairs, 363 based on Foata normal form. 46/1546 useless extension candidates. Maximal degree in co-relation 2274. Up to 771 conditions per place. [2025-03-09 06:38:09,313 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 64 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2025-03-09 06:38:09,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 102 transitions, 438 flow [2025-03-09 06:38:09,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:09,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 207 transitions. [2025-03-09 06:38:09,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2025-03-09 06:38:09,315 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 202 flow. Second operand 4 states and 207 transitions. [2025-03-09 06:38:09,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 102 transitions, 438 flow [2025-03-09 06:38:09,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 102 transitions, 435 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:38:09,322 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 201 flow [2025-03-09 06:38:09,322 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2025-03-09 06:38:09,323 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-09 06:38:09,324 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 201 flow [2025-03-09 06:38:09,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,324 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:09,324 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:09,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:38:09,325 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash 638720680, now seen corresponding path program 1 times [2025-03-09 06:38:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:09,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998825741] [2025-03-09 06:38:09,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:09,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:38:09,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:38:09,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:09,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:09,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:09,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998825741] [2025-03-09 06:38:09,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998825741] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:09,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:09,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:09,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557778989] [2025-03-09 06:38:09,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:09,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:38:09,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:09,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:38:09,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:38:09,470 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2025-03-09 06:38:09,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 201 flow. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:09,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2025-03-09 06:38:09,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:09,653 INFO L124 PetriNetUnfolderBase]: 894/1801 cut-off events. [2025-03-09 06:38:09,653 INFO L125 PetriNetUnfolderBase]: For 672/723 co-relation queries the response was YES. [2025-03-09 06:38:09,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3990 conditions, 1801 events. 894/1801 cut-off events. For 672/723 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 12892 event pairs, 211 based on Foata normal form. 26/1657 useless extension candidates. Maximal degree in co-relation 2939. Up to 685 conditions per place. [2025-03-09 06:38:09,662 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 62 selfloop transitions, 6 changer transitions 0/100 dead transitions. [2025-03-09 06:38:09,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 100 transitions, 439 flow [2025-03-09 06:38:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:38:09,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:38:09,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2025-03-09 06:38:09,664 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6861111111111111 [2025-03-09 06:38:09,664 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 201 flow. Second operand 5 states and 247 transitions. [2025-03-09 06:38:09,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 100 transitions, 439 flow [2025-03-09 06:38:09,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 100 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:38:09,667 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 205 flow [2025-03-09 06:38:09,667 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2025-03-09 06:38:09,667 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2025-03-09 06:38:09,668 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 205 flow [2025-03-09 06:38:09,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,668 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:09,668 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:09,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:38:09,668 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:09,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:09,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1925191566, now seen corresponding path program 1 times [2025-03-09 06:38:09,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:09,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036452225] [2025-03-09 06:38:09,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:09,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:09,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:38:09,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:38:09,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:09,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:09,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:09,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:09,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036452225] [2025-03-09 06:38:09,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036452225] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:09,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:09,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:38:09,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871839107] [2025-03-09 06:38:09,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:09,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:09,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:09,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:09,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:09,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2025-03-09 06:38:09,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:09,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2025-03-09 06:38:09,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:09,875 INFO L124 PetriNetUnfolderBase]: 716/1661 cut-off events. [2025-03-09 06:38:09,876 INFO L125 PetriNetUnfolderBase]: For 973/999 co-relation queries the response was YES. [2025-03-09 06:38:09,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3461 conditions, 1661 events. 716/1661 cut-off events. For 973/999 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12437 event pairs, 225 based on Foata normal form. 26/1474 useless extension candidates. Maximal degree in co-relation 2129. Up to 524 conditions per place. [2025-03-09 06:38:09,884 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 44 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2025-03-09 06:38:09,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 82 transitions, 354 flow [2025-03-09 06:38:09,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:09,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2025-03-09 06:38:09,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6909722222222222 [2025-03-09 06:38:09,885 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 205 flow. Second operand 4 states and 199 transitions. [2025-03-09 06:38:09,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 82 transitions, 354 flow [2025-03-09 06:38:09,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 339 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:09,890 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 202 flow [2025-03-09 06:38:09,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2025-03-09 06:38:09,891 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-09 06:38:09,891 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 202 flow [2025-03-09 06:38:09,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:09,891 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:09,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:09,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:38:09,892 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:09,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:09,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1674494931, now seen corresponding path program 1 times [2025-03-09 06:38:09,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:09,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035003954] [2025-03-09 06:38:09,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:09,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:09,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:38:09,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:38:09,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:09,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:09,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:09,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035003954] [2025-03-09 06:38:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035003954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:38:09,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93394165] [2025-03-09 06:38:09,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:09,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:38:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:09,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:38:09,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:38:10,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2025-03-09 06:38:10,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 202 flow. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:10,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2025-03-09 06:38:10,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:10,243 INFO L124 PetriNetUnfolderBase]: 894/1765 cut-off events. [2025-03-09 06:38:10,244 INFO L125 PetriNetUnfolderBase]: For 1108/1160 co-relation queries the response was YES. [2025-03-09 06:38:10,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 1765 events. 894/1765 cut-off events. For 1108/1160 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 12417 event pairs, 210 based on Foata normal form. 83/1678 useless extension candidates. Maximal degree in co-relation 2932. Up to 481 conditions per place. [2025-03-09 06:38:10,252 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 75 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2025-03-09 06:38:10,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 544 flow [2025-03-09 06:38:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:38:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:38:10,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 279 transitions. [2025-03-09 06:38:10,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2025-03-09 06:38:10,255 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 202 flow. Second operand 6 states and 279 transitions. [2025-03-09 06:38:10,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 544 flow [2025-03-09 06:38:10,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 115 transitions, 518 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:38:10,259 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 219 flow [2025-03-09 06:38:10,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2025-03-09 06:38:10,261 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2025-03-09 06:38:10,262 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 219 flow [2025-03-09 06:38:10,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:10,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:10,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:38:10,263 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:10,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:10,263 INFO L85 PathProgramCache]: Analyzing trace with hash 448573341, now seen corresponding path program 1 times [2025-03-09 06:38:10,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:10,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137065295] [2025-03-09 06:38:10,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:10,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:10,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:38:10,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:38:10,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:10,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:10,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:10,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137065295] [2025-03-09 06:38:10,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137065295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:10,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:10,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:38:10,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255624480] [2025-03-09 06:38:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:10,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:10,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:10,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:10,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:10,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2025-03-09 06:38:10,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:10,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2025-03-09 06:38:10,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:10,465 INFO L124 PetriNetUnfolderBase]: 717/1621 cut-off events. [2025-03-09 06:38:10,465 INFO L125 PetriNetUnfolderBase]: For 1629/1709 co-relation queries the response was YES. [2025-03-09 06:38:10,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3649 conditions, 1621 events. 717/1621 cut-off events. For 1629/1709 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11895 event pairs, 226 based on Foata normal form. 93/1516 useless extension candidates. Maximal degree in co-relation 2234. Up to 551 conditions per place. [2025-03-09 06:38:10,473 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 47 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2025-03-09 06:38:10,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 82 transitions, 385 flow [2025-03-09 06:38:10,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:10,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2025-03-09 06:38:10,475 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2025-03-09 06:38:10,475 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 219 flow. Second operand 4 states and 195 transitions. [2025-03-09 06:38:10,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 82 transitions, 385 flow [2025-03-09 06:38:10,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 363 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:38:10,478 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 210 flow [2025-03-09 06:38:10,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2025-03-09 06:38:10,479 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-09 06:38:10,479 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 210 flow [2025-03-09 06:38:10,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:10,479 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:10,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:38:10,480 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:10,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:10,480 INFO L85 PathProgramCache]: Analyzing trace with hash 548954095, now seen corresponding path program 1 times [2025-03-09 06:38:10,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:10,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160947335] [2025-03-09 06:38:10,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:10,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:10,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:38:10,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:38:10,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:10,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:10,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:10,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160947335] [2025-03-09 06:38:10,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160947335] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:10,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:10,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:10,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114118333] [2025-03-09 06:38:10,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:10,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:10,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:10,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:10,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:10,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-09 06:38:10,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:10,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-09 06:38:10,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:10,696 INFO L124 PetriNetUnfolderBase]: 899/1775 cut-off events. [2025-03-09 06:38:10,697 INFO L125 PetriNetUnfolderBase]: For 1504/1549 co-relation queries the response was YES. [2025-03-09 06:38:10,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4136 conditions, 1775 events. 899/1775 cut-off events. For 1504/1549 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 12431 event pairs, 360 based on Foata normal form. 73/1648 useless extension candidates. Maximal degree in co-relation 2559. Up to 793 conditions per place. [2025-03-09 06:38:10,704 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 63 selfloop transitions, 5 changer transitions 0/98 dead transitions. [2025-03-09 06:38:10,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 98 transitions, 461 flow [2025-03-09 06:38:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:10,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:10,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2025-03-09 06:38:10,707 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2025-03-09 06:38:10,707 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 210 flow. Second operand 4 states and 205 transitions. [2025-03-09 06:38:10,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 98 transitions, 461 flow [2025-03-09 06:38:10,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 98 transitions, 438 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:38:10,710 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 212 flow [2025-03-09 06:38:10,710 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2025-03-09 06:38:10,710 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 6 predicate places. [2025-03-09 06:38:10,710 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 212 flow [2025-03-09 06:38:10,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:10,710 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:10,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:38:10,713 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:10,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:10,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1020871188, now seen corresponding path program 1 times [2025-03-09 06:38:10,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:10,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128309177] [2025-03-09 06:38:10,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:10,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:10,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:38:10,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:38:10,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:10,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:10,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:10,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128309177] [2025-03-09 06:38:10,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128309177] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:10,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:10,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:10,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364206418] [2025-03-09 06:38:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:10,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:38:10,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:10,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:38:10,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:38:10,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2025-03-09 06:38:10,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:10,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:10,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2025-03-09 06:38:10,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:11,001 INFO L124 PetriNetUnfolderBase]: 999/1903 cut-off events. [2025-03-09 06:38:11,001 INFO L125 PetriNetUnfolderBase]: For 1767/1863 co-relation queries the response was YES. [2025-03-09 06:38:11,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 1903 events. 999/1903 cut-off events. For 1767/1863 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12919 event pairs, 244 based on Foata normal form. 96/1843 useless extension candidates. Maximal degree in co-relation 3647. Up to 713 conditions per place. [2025-03-09 06:38:11,012 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 66 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2025-03-09 06:38:11,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 99 transitions, 498 flow [2025-03-09 06:38:11,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:38:11,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:38:11,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2025-03-09 06:38:11,014 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-03-09 06:38:11,014 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 212 flow. Second operand 5 states and 245 transitions. [2025-03-09 06:38:11,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 99 transitions, 498 flow [2025-03-09 06:38:11,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:38:11,018 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 218 flow [2025-03-09 06:38:11,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2025-03-09 06:38:11,019 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2025-03-09 06:38:11,019 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 218 flow [2025-03-09 06:38:11,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:11,019 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:11,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:38:11,019 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:11,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1020872181, now seen corresponding path program 1 times [2025-03-09 06:38:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:11,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736808014] [2025-03-09 06:38:11,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:11,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:38:11,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:38:11,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:11,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:11,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:11,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:11,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736808014] [2025-03-09 06:38:11,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736808014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:11,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:11,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:38:11,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127961939] [2025-03-09 06:38:11,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:11,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:38:11,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:11,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:38:11,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:38:11,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2025-03-09 06:38:11,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:11,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2025-03-09 06:38:11,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:11,220 INFO L124 PetriNetUnfolderBase]: 829/1743 cut-off events. [2025-03-09 06:38:11,220 INFO L125 PetriNetUnfolderBase]: For 1697/1773 co-relation queries the response was YES. [2025-03-09 06:38:11,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4117 conditions, 1743 events. 829/1743 cut-off events. For 1697/1773 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12461 event pairs, 408 based on Foata normal form. 105/1692 useless extension candidates. Maximal degree in co-relation 3265. Up to 852 conditions per place. [2025-03-09 06:38:11,226 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 68 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2025-03-09 06:38:11,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 99 transitions, 494 flow [2025-03-09 06:38:11,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:38:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:38:11,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2025-03-09 06:38:11,228 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2025-03-09 06:38:11,228 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 218 flow. Second operand 4 states and 205 transitions. [2025-03-09 06:38:11,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 99 transitions, 494 flow [2025-03-09 06:38:11,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 99 transitions, 482 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:38:11,231 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 208 flow [2025-03-09 06:38:11,231 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2025-03-09 06:38:11,231 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2025-03-09 06:38:11,231 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 208 flow [2025-03-09 06:38:11,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,232 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:11,232 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:11,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:38:11,232 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:11,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:11,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1582236256, now seen corresponding path program 1 times [2025-03-09 06:38:11,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:11,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650407605] [2025-03-09 06:38:11,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:11,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:11,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:38:11,240 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:38:11,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:11,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:11,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:11,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650407605] [2025-03-09 06:38:11,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650407605] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:11,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:11,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:38:11,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349084110] [2025-03-09 06:38:11,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:11,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:38:11,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:11,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:38:11,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:38:11,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2025-03-09 06:38:11,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:11,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2025-03-09 06:38:11,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:11,533 INFO L124 PetriNetUnfolderBase]: 970/1845 cut-off events. [2025-03-09 06:38:11,534 INFO L125 PetriNetUnfolderBase]: For 1691/1787 co-relation queries the response was YES. [2025-03-09 06:38:11,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 1845 events. 970/1845 cut-off events. For 1691/1787 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 12469 event pairs, 244 based on Foata normal form. 154/1843 useless extension candidates. Maximal degree in co-relation 3546. Up to 547 conditions per place. [2025-03-09 06:38:11,543 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 80 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2025-03-09 06:38:11,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 590 flow [2025-03-09 06:38:11,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:38:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:38:11,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2025-03-09 06:38:11,544 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2025-03-09 06:38:11,545 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 208 flow. Second operand 6 states and 276 transitions. [2025-03-09 06:38:11,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 590 flow [2025-03-09 06:38:11,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 115 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:38:11,549 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 227 flow [2025-03-09 06:38:11,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2025-03-09 06:38:11,549 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 10 predicate places. [2025-03-09 06:38:11,549 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 227 flow [2025-03-09 06:38:11,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:38:11,550 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:11,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:38:11,550 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2025-03-09 06:38:11,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:38:11,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1571594181, now seen corresponding path program 1 times [2025-03-09 06:38:11,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:38:11,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548081977] [2025-03-09 06:38:11,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:38:11,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:38:11,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:38:11,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:38:11,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:38:11,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:38:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:38:11,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:38:11,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548081977] [2025-03-09 06:38:11,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548081977] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:38:11,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:38:11,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:38:11,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538284961] [2025-03-09 06:38:11,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:38:11,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:38:11,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:38:11,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:38:11,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:38:11,642 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2025-03-09 06:38:11,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:38:11,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2025-03-09 06:38:11,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:38:11,842 INFO L124 PetriNetUnfolderBase]: 970/1770 cut-off events. [2025-03-09 06:38:11,842 INFO L125 PetriNetUnfolderBase]: For 2055/2149 co-relation queries the response was YES. [2025-03-09 06:38:11,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4677 conditions, 1770 events. 970/1770 cut-off events. For 2055/2149 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 11597 event pairs, 408 based on Foata normal form. 123/1791 useless extension candidates. Maximal degree in co-relation 3703. Up to 881 conditions per place. [2025-03-09 06:38:11,847 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2025-03-09 06:38:11,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 133 transitions, 719 flow [2025-03-09 06:38:11,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:38:11,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:38:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 294 transitions. [2025-03-09 06:38:11,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2025-03-09 06:38:11,848 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 227 flow. Second operand 6 states and 294 transitions. [2025-03-09 06:38:11,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 133 transitions, 719 flow [2025-03-09 06:38:11,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 701 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-09 06:38:11,853 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2025-03-09 06:38:11,853 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2025-03-09 06:38:11,854 INFO L279 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2025-03-09 06:38:11,854 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2025-03-09 06:38:11,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2025-03-09 06:38:11,856 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2025-03-09 06:38:11,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2025-03-09 06:38:11,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 06:38:11,857 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:38:11,861 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:38:11,861 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:38:11,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:38:11 BasicIcfg [2025-03-09 06:38:11,864 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:38:11,865 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:38:11,865 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:38:11,865 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:38:11,865 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:38:07" (3/4) ... [2025-03-09 06:38:11,866 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:38:11,868 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:38:11,868 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:38:11,870 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2025-03-09 06:38:11,872 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-03-09 06:38:11,872 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-09 06:38:11,872 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 06:38:11,872 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:38:11,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:38:11,928 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:38:11,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:38:11,929 INFO L158 Benchmark]: Toolchain (without parser) took 5551.43ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 122.7MB in the beginning and 63.7MB in the end (delta: 59.0MB). Peak memory consumption was 109.7MB. Max. memory is 16.1GB. [2025-03-09 06:38:11,929 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:38:11,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.86ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:38:11,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.28ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 109.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:38:11,930 INFO L158 Benchmark]: Boogie Preprocessor took 40.23ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 107.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:38:11,930 INFO L158 Benchmark]: IcfgBuilder took 596.31ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 64.3MB in the end (delta: 43.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-09 06:38:11,930 INFO L158 Benchmark]: TraceAbstraction took 4625.41ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 63.9MB in the beginning and 69.7MB in the end (delta: -5.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2025-03-09 06:38:11,930 INFO L158 Benchmark]: Witness Printer took 63.96ms. Allocated memory is still 218.1MB. Free memory was 69.7MB in the beginning and 63.7MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:38:11,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.86ms. Allocated memory is still 167.8MB. Free memory was 122.7MB in the beginning and 111.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.28ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 109.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.23ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 107.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 596.31ms. Allocated memory is still 167.8MB. Free memory was 107.6MB in the beginning and 64.3MB in the end (delta: 43.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4625.41ms. Allocated memory was 167.8MB in the beginning and 218.1MB in the end (delta: 50.3MB). Free memory was 63.9MB in the beginning and 69.7MB in the end (delta: -5.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Witness Printer took 63.96ms. Allocated memory is still 218.1MB. Free memory was 69.7MB in the beginning and 63.7MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: 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 5 procedures, 115 locations, 138 edges, 26 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: 4.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1070 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 869 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2051 IncrementalHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 58 mSDtfsCounter, 2051 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=13, InterpolantAutomatonStates: 64, 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, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:38:11,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE