./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-4.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/parallel-ticket-4.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 ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:40:31,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:40:31,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:40:31,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:40:31,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:40:31,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:40:31,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:40:31,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:40:31,466 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:40:31,467 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:40:31,467 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:40:31,467 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:40:31,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:40:31,468 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:40:31,468 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:40:31,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:40:31,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:40:31,469 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:40:31,470 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:40:31,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:40:31,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:40:31,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:40:31,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:40:31,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:40:31,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:40:31,470 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:40:31,471 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:40:31,471 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 -> ad6b8e6072d4c534442fdbffe3152158d5d2614d02df79d5ef08cd921f0d4751 [2025-03-09 06:40:31,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:40:31,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:40:31,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:40:31,720 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:40:31,720 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:40:31,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2025-03-09 06:40:32,909 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0e80b3d/987c91dda46642bfac46a4f9b372d116/FLAGd9e7e46b0 [2025-03-09 06:40:33,190 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:40:33,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2025-03-09 06:40:33,196 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0e80b3d/987c91dda46642bfac46a4f9b372d116/FLAGd9e7e46b0 [2025-03-09 06:40:33,483 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0e80b3d/987c91dda46642bfac46a4f9b372d116 [2025-03-09 06:40:33,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:40:33,486 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:40:33,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:40:33,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:40:33,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:40:33,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c621b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33, skipping insertion in model container [2025-03-09 06:40:33,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:40:33,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:40:33,651 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:40:33,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:40:33,692 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:40:33,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33 WrapperNode [2025-03-09 06:40:33,693 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:40:33,694 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:40:33,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:40:33,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:40:33,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,732 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 190 [2025-03-09 06:40:33,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:40:33,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:40:33,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:40:33,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:40:33,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,744 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,758 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 06:40:33,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,763 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,769 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:40:33,779 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:40:33,779 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:40:33,779 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:40:33,780 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (1/1) ... [2025-03-09 06:40:33,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:40:33,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:40:33,814 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 06:40:33,820 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 06:40:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:40:33,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:40:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:40:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:40:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:40:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-09 06:40:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-09 06:40:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-03-09 06:40:33,843 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-03-09 06:40:33,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:40:33,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:40:33,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:40:33,845 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 06:40:33,920 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:40:33,921 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:40:34,116 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:40:34,116 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:40:34,263 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:40:34,263 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:40:34,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:40:34 BoogieIcfgContainer [2025-03-09 06:40:34,263 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:40:34,265 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:40:34,265 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:40:34,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:40:34,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:40:33" (1/3) ... [2025-03-09 06:40:34,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb4a295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:40:34, skipping insertion in model container [2025-03-09 06:40:34,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:40:33" (2/3) ... [2025-03-09 06:40:34,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb4a295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:40:34, skipping insertion in model container [2025-03-09 06:40:34,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:40:34" (3/3) ... [2025-03-09 06:40:34,272 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2025-03-09 06:40:34,284 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:40:34,285 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-4.wvr.c that has 5 procedures, 71 locations, 1 initial locations, 0 loop locations, and 16 error locations. [2025-03-09 06:40:34,286 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:40:34,346 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-09 06:40:34,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 73 transitions, 174 flow [2025-03-09 06:40:34,415 INFO L124 PetriNetUnfolderBase]: 3/69 cut-off events. [2025-03-09 06:40:34,417 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-09 06:40:34,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 69 events. 3/69 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 181 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2025-03-09 06:40:34,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 73 transitions, 174 flow [2025-03-09 06:40:34,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 155 flow [2025-03-09 06:40:34,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:40:34,474 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;@774d617d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:40:34,476 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2025-03-09 06:40:34,482 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:40:34,483 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-03-09 06:40:34,483 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:40:34,483 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:34,484 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:34,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:34,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:34,489 INFO L85 PathProgramCache]: Analyzing trace with hash 682006572, now seen corresponding path program 1 times [2025-03-09 06:40:34,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:34,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882955259] [2025-03-09 06:40:34,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:34,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:34,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:40:34,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:40:34,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:34,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:34,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:34,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882955259] [2025-03-09 06:40:34,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882955259] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:34,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:34,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:40:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723413814] [2025-03-09 06:40:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:34,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:40:34,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:34,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:40:34,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:40:34,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:34,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 67 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:34,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:34,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:34,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:39,130 INFO L124 PetriNetUnfolderBase]: 57657/76775 cut-off events. [2025-03-09 06:40:39,131 INFO L125 PetriNetUnfolderBase]: For 2457/2457 co-relation queries the response was YES. [2025-03-09 06:40:39,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152333 conditions, 76775 events. 57657/76775 cut-off events. For 2457/2457 co-relation queries the response was YES. Maximal size of possible extension queue 3090. Compared 491357 event pairs, 45449 based on Foata normal form. 0/47187 useless extension candidates. Maximal degree in co-relation 144300. Up to 73132 conditions per place. [2025-03-09 06:40:39,577 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 50 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2025-03-09 06:40:39,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 63 transitions, 253 flow [2025-03-09 06:40:39,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:40:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:40:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2025-03-09 06:40:39,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4520547945205479 [2025-03-09 06:40:39,590 INFO L175 Difference]: Start difference. First operand has 77 places, 67 transitions, 155 flow. Second operand 3 states and 99 transitions. [2025-03-09 06:40:39,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 63 transitions, 253 flow [2025-03-09 06:40:39,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 63 transitions, 240 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-09 06:40:39,865 INFO L231 Difference]: Finished difference. Result has 68 places, 63 transitions, 140 flow [2025-03-09 06:40:39,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2025-03-09 06:40:39,873 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2025-03-09 06:40:39,873 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 140 flow [2025-03-09 06:40:39,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:39,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:39,874 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:39,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:40:39,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:39,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:39,875 INFO L85 PathProgramCache]: Analyzing trace with hash 682006573, now seen corresponding path program 1 times [2025-03-09 06:40:39,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:39,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010639839] [2025-03-09 06:40:39,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:39,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:39,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:40:39,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:40:39,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:39,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:39,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:39,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:39,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010639839] [2025-03-09 06:40:39,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010639839] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:39,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:39,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:40:39,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412855371] [2025-03-09 06:40:39,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:39,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:40:39,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:39,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:40:39,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:40:39,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:39,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:39,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:39,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:39,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:42,971 INFO L124 PetriNetUnfolderBase]: 57214/76146 cut-off events. [2025-03-09 06:40:42,971 INFO L125 PetriNetUnfolderBase]: For 609/609 co-relation queries the response was YES. [2025-03-09 06:40:43,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150337 conditions, 76146 events. 57214/76146 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 3213. Compared 482893 event pairs, 35458 based on Foata normal form. 0/47638 useless extension candidates. Maximal degree in co-relation 150313. Up to 72627 conditions per place. [2025-03-09 06:40:43,281 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 57 selfloop transitions, 7 changer transitions 0/74 dead transitions. [2025-03-09 06:40:43,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 74 transitions, 294 flow [2025-03-09 06:40:43,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:40:43,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:40:43,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-03-09 06:40:43,283 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.502283105022831 [2025-03-09 06:40:43,283 INFO L175 Difference]: Start difference. First operand has 68 places, 63 transitions, 140 flow. Second operand 3 states and 110 transitions. [2025-03-09 06:40:43,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 74 transitions, 294 flow [2025-03-09 06:40:43,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 74 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:43,285 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 179 flow [2025-03-09 06:40:43,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2025-03-09 06:40:43,286 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -8 predicate places. [2025-03-09 06:40:43,286 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 179 flow [2025-03-09 06:40:43,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:43,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:43,286 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:43,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:40:43,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:43,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:43,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1892069748, now seen corresponding path program 1 times [2025-03-09 06:40:43,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:43,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239803243] [2025-03-09 06:40:43,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:43,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:43,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:40:43,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:40:43,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:43,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:43,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:43,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:43,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239803243] [2025-03-09 06:40:43,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239803243] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:43,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:43,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:43,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163281213] [2025-03-09 06:40:43,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:43,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:43,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:43,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:43,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:43,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:43,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:43,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:43,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:43,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:46,259 INFO L124 PetriNetUnfolderBase]: 54876/73305 cut-off events. [2025-03-09 06:40:46,259 INFO L125 PetriNetUnfolderBase]: For 5215/5215 co-relation queries the response was YES. [2025-03-09 06:40:46,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155476 conditions, 73305 events. 54876/73305 cut-off events. For 5215/5215 co-relation queries the response was YES. Maximal size of possible extension queue 3175. Compared 469564 event pairs, 20100 based on Foata normal form. 0/46638 useless extension candidates. Maximal degree in co-relation 141283. Up to 69383 conditions per place. [2025-03-09 06:40:46,624 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 88 selfloop transitions, 11 changer transitions 0/109 dead transitions. [2025-03-09 06:40:46,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 109 transitions, 477 flow [2025-03-09 06:40:46,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:46,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:46,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 159 transitions. [2025-03-09 06:40:46,626 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5445205479452054 [2025-03-09 06:40:46,626 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 179 flow. Second operand 4 states and 159 transitions. [2025-03-09 06:40:46,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 109 transitions, 477 flow [2025-03-09 06:40:46,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 109 transitions, 470 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:40:46,628 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 234 flow [2025-03-09 06:40:46,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2025-03-09 06:40:46,633 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -5 predicate places. [2025-03-09 06:40:46,633 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 234 flow [2025-03-09 06:40:46,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:46,633 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:46,633 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:46,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:40:46,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:46,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:46,634 INFO L85 PathProgramCache]: Analyzing trace with hash -955619215, now seen corresponding path program 1 times [2025-03-09 06:40:46,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:46,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933070896] [2025-03-09 06:40:46,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:46,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:46,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:40:46,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:40:46,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:46,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:46,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:46,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:46,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933070896] [2025-03-09 06:40:46,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933070896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:46,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:46,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:40:46,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080383986] [2025-03-09 06:40:46,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:46,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:40:46,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:46,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:40:46,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:40:46,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:46,680 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:46,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:46,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:46,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:49,727 INFO L124 PetriNetUnfolderBase]: 55465/73572 cut-off events. [2025-03-09 06:40:49,727 INFO L125 PetriNetUnfolderBase]: For 17683/17683 co-relation queries the response was YES. [2025-03-09 06:40:49,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170025 conditions, 73572 events. 55465/73572 cut-off events. For 17683/17683 co-relation queries the response was YES. Maximal size of possible extension queue 3206. Compared 455701 event pairs, 16940 based on Foata normal form. 0/49574 useless extension candidates. Maximal degree in co-relation 108337. Up to 45907 conditions per place. [2025-03-09 06:40:50,325 INFO L140 encePairwiseOnDemand]: 58/73 looper letters, 93 selfloop transitions, 11 changer transitions 0/114 dead transitions. [2025-03-09 06:40:50,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 114 transitions, 587 flow [2025-03-09 06:40:50,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:40:50,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:40:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 138 transitions. [2025-03-09 06:40:50,327 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6301369863013698 [2025-03-09 06:40:50,327 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 234 flow. Second operand 3 states and 138 transitions. [2025-03-09 06:40:50,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 114 transitions, 587 flow [2025-03-09 06:40:50,331 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 114 transitions, 553 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:50,334 INFO L231 Difference]: Finished difference. Result has 74 places, 79 transitions, 296 flow [2025-03-09 06:40:50,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=74, PETRI_TRANSITIONS=79} [2025-03-09 06:40:50,336 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2025-03-09 06:40:50,336 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 79 transitions, 296 flow [2025-03-09 06:40:50,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:50,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:50,337 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:50,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:40:50,337 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:50,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:50,339 INFO L85 PathProgramCache]: Analyzing trace with hash -955619216, now seen corresponding path program 1 times [2025-03-09 06:40:50,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:50,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585900346] [2025-03-09 06:40:50,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:50,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:50,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:40:50,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:40:50,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:50,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:50,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:50,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:50,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585900346] [2025-03-09 06:40:50,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585900346] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:50,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:50,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:40:50,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232696962] [2025-03-09 06:40:50,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:50,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:40:50,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:50,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:40:50,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:40:50,407 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:50,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 79 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:50,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:50,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:50,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:51,962 INFO L124 PetriNetUnfolderBase]: 27301/37000 cut-off events. [2025-03-09 06:40:51,962 INFO L125 PetriNetUnfolderBase]: For 27393/27393 co-relation queries the response was YES. [2025-03-09 06:40:52,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98704 conditions, 37000 events. 27301/37000 cut-off events. For 27393/27393 co-relation queries the response was YES. Maximal size of possible extension queue 1605. Compared 227389 event pairs, 19374 based on Foata normal form. 5938/33805 useless extension candidates. Maximal degree in co-relation 17965. Up to 35452 conditions per place. [2025-03-09 06:40:52,141 INFO L140 encePairwiseOnDemand]: 66/73 looper letters, 58 selfloop transitions, 3 changer transitions 0/71 dead transitions. [2025-03-09 06:40:52,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 71 transitions, 378 flow [2025-03-09 06:40:52,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:40:52,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:40:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-03-09 06:40:52,143 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4337899543378995 [2025-03-09 06:40:52,143 INFO L175 Difference]: Start difference. First operand has 74 places, 79 transitions, 296 flow. Second operand 3 states and 95 transitions. [2025-03-09 06:40:52,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 71 transitions, 378 flow [2025-03-09 06:40:52,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 71 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:52,147 INFO L231 Difference]: Finished difference. Result has 70 places, 71 transitions, 248 flow [2025-03-09 06:40:52,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=70, PETRI_TRANSITIONS=71} [2025-03-09 06:40:52,148 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-03-09 06:40:52,148 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 71 transitions, 248 flow [2025-03-09 06:40:52,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:52,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:52,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:52,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:40:52,149 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:52,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:52,149 INFO L85 PathProgramCache]: Analyzing trace with hash 618869412, now seen corresponding path program 1 times [2025-03-09 06:40:52,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:52,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977517777] [2025-03-09 06:40:52,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:52,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:52,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:40:52,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:40:52,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:52,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:52,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:52,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977517777] [2025-03-09 06:40:52,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977517777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:52,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:52,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:40:52,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919179366] [2025-03-09 06:40:52,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:52,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:40:52,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:52,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:40:52,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:40:52,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:52,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 71 transitions, 248 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:52,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:52,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:52,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:53,816 INFO L124 PetriNetUnfolderBase]: 22166/30561 cut-off events. [2025-03-09 06:40:53,816 INFO L125 PetriNetUnfolderBase]: For 10080/10080 co-relation queries the response was YES. [2025-03-09 06:40:54,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76945 conditions, 30561 events. 22166/30561 cut-off events. For 10080/10080 co-relation queries the response was YES. Maximal size of possible extension queue 1414. Compared 186173 event pairs, 4361 based on Foata normal form. 0/24196 useless extension candidates. Maximal degree in co-relation 76912. Up to 27029 conditions per place. [2025-03-09 06:40:54,172 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 110 selfloop transitions, 15 changer transitions 0/135 dead transitions. [2025-03-09 06:40:54,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 135 transitions, 686 flow [2025-03-09 06:40:54,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:40:54,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:40:54,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 191 transitions. [2025-03-09 06:40:54,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5232876712328767 [2025-03-09 06:40:54,174 INFO L175 Difference]: Start difference. First operand has 70 places, 71 transitions, 248 flow. Second operand 5 states and 191 transitions. [2025-03-09 06:40:54,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 135 transitions, 686 flow [2025-03-09 06:40:54,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 135 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:54,179 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 320 flow [2025-03-09 06:40:54,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2025-03-09 06:40:54,180 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-03-09 06:40:54,180 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 320 flow [2025-03-09 06:40:54,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:54,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:54,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:54,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:40:54,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:54,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:54,181 INFO L85 PathProgramCache]: Analyzing trace with hash -853116118, now seen corresponding path program 1 times [2025-03-09 06:40:54,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:54,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642074325] [2025-03-09 06:40:54,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:54,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:54,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 06:40:54,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 06:40:54,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:54,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:54,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:54,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642074325] [2025-03-09 06:40:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642074325] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:54,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177062810] [2025-03-09 06:40:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:54,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:40:54,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:54,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:40:54,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:40:54,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:54,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:54,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:54,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:54,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:55,336 INFO L124 PetriNetUnfolderBase]: 18088/24234 cut-off events. [2025-03-09 06:40:55,336 INFO L125 PetriNetUnfolderBase]: For 16743/16848 co-relation queries the response was YES. [2025-03-09 06:40:55,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66242 conditions, 24234 events. 18088/24234 cut-off events. For 16743/16848 co-relation queries the response was YES. Maximal size of possible extension queue 988. Compared 132487 event pairs, 2607 based on Foata normal form. 94/21227 useless extension candidates. Maximal degree in co-relation 28529. Up to 12537 conditions per place. [2025-03-09 06:40:55,463 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 121 selfloop transitions, 11 changer transitions 0/142 dead transitions. [2025-03-09 06:40:55,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 142 transitions, 906 flow [2025-03-09 06:40:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:40:55,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:40:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2025-03-09 06:40:55,468 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5753424657534246 [2025-03-09 06:40:55,468 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 320 flow. Second operand 4 states and 168 transitions. [2025-03-09 06:40:55,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 142 transitions, 906 flow [2025-03-09 06:40:55,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 142 transitions, 824 flow, removed 24 selfloop flow, removed 3 redundant places. [2025-03-09 06:40:55,473 INFO L231 Difference]: Finished difference. Result has 74 places, 79 transitions, 344 flow [2025-03-09 06:40:55,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=344, PETRI_PLACES=74, PETRI_TRANSITIONS=79} [2025-03-09 06:40:55,474 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -3 predicate places. [2025-03-09 06:40:55,474 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 79 transitions, 344 flow [2025-03-09 06:40:55,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:55,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:55,474 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:55,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:40:55,474 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:55,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:55,475 INFO L85 PathProgramCache]: Analyzing trace with hash -974283829, now seen corresponding path program 1 times [2025-03-09 06:40:55,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:55,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944876618] [2025-03-09 06:40:55,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:55,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:55,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 06:40:55,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 06:40:55,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:55,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:55,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:55,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944876618] [2025-03-09 06:40:55,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944876618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:55,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:55,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:40:55,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940442693] [2025-03-09 06:40:55,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:55,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:40:55,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:55,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:40:55,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:40:55,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:55,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 79 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:55,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:55,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:55,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:56,370 INFO L124 PetriNetUnfolderBase]: 12122/17359 cut-off events. [2025-03-09 06:40:56,370 INFO L125 PetriNetUnfolderBase]: For 17142/17142 co-relation queries the response was YES. [2025-03-09 06:40:56,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47976 conditions, 17359 events. 12122/17359 cut-off events. For 17142/17142 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 101668 event pairs, 563 based on Foata normal form. 0/15650 useless extension candidates. Maximal degree in co-relation 42262. Up to 8953 conditions per place. [2025-03-09 06:40:56,452 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 135 selfloop transitions, 19 changer transitions 0/164 dead transitions. [2025-03-09 06:40:56,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 164 transitions, 945 flow [2025-03-09 06:40:56,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:40:56,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:40:56,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 222 transitions. [2025-03-09 06:40:56,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5068493150684932 [2025-03-09 06:40:56,454 INFO L175 Difference]: Start difference. First operand has 74 places, 79 transitions, 344 flow. Second operand 6 states and 222 transitions. [2025-03-09 06:40:56,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 164 transitions, 945 flow [2025-03-09 06:40:56,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 164 transitions, 887 flow, removed 12 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:56,461 INFO L231 Difference]: Finished difference. Result has 73 places, 75 transitions, 328 flow [2025-03-09 06:40:56,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=73, PETRI_TRANSITIONS=75} [2025-03-09 06:40:56,461 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-03-09 06:40:56,462 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 75 transitions, 328 flow [2025-03-09 06:40:56,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:56,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:56,462 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:56,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:40:56,462 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:56,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:56,463 INFO L85 PathProgramCache]: Analyzing trace with hash -691683168, now seen corresponding path program 1 times [2025-03-09 06:40:56,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:56,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329458777] [2025-03-09 06:40:56,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:56,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:56,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-09 06:40:56,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-09 06:40:56,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:56,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:56,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:56,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:56,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329458777] [2025-03-09 06:40:56,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329458777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:56,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:56,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:40:56,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645347899] [2025-03-09 06:40:56,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:56,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:40:56,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:56,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:40:56,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:40:56,494 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 73 [2025-03-09 06:40:56,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 75 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:56,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:56,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 73 [2025-03-09 06:40:56,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:57,623 INFO L124 PetriNetUnfolderBase]: 18250/24821 cut-off events. [2025-03-09 06:40:57,623 INFO L125 PetriNetUnfolderBase]: For 27429/27429 co-relation queries the response was YES. [2025-03-09 06:40:57,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67217 conditions, 24821 events. 18250/24821 cut-off events. For 27429/27429 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 136631 event pairs, 10904 based on Foata normal form. 0/23630 useless extension candidates. Maximal degree in co-relation 20334. Up to 21770 conditions per place. [2025-03-09 06:40:57,730 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 104 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2025-03-09 06:40:57,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 116 transitions, 734 flow [2025-03-09 06:40:57,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:40:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:40:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2025-03-09 06:40:57,731 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4885844748858447 [2025-03-09 06:40:57,731 INFO L175 Difference]: Start difference. First operand has 73 places, 75 transitions, 328 flow. Second operand 3 states and 107 transitions. [2025-03-09 06:40:57,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 116 transitions, 734 flow [2025-03-09 06:40:57,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 116 transitions, 618 flow, removed 21 selfloop flow, removed 7 redundant places. [2025-03-09 06:40:57,753 INFO L231 Difference]: Finished difference. Result has 70 places, 79 transitions, 305 flow [2025-03-09 06:40:57,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=70, PETRI_TRANSITIONS=79} [2025-03-09 06:40:57,754 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -7 predicate places. [2025-03-09 06:40:57,754 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 79 transitions, 305 flow [2025-03-09 06:40:57,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:57,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:57,754 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:57,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:40:57,754 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:57,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:57,755 INFO L85 PathProgramCache]: Analyzing trace with hash -352776982, now seen corresponding path program 1 times [2025-03-09 06:40:57,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:57,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4102381] [2025-03-09 06:40:57,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:57,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:57,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 06:40:57,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 06:40:57,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:57,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:57,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:57,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4102381] [2025-03-09 06:40:57,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4102381] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:57,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:57,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:40:57,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870615342] [2025-03-09 06:40:57,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:57,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:40:57,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:57,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:40:57,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:40:57,832 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:57,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 79 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:57,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:57,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:57,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:40:58,719 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), 9#L100-1true, 42#L76true, Black: 100#(<= ~s~0 0), 70#L56-5true, 131#(<= ~s~0 1), 13#L66-5true, 64#L46-5true, 82#true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,719 INFO L294 olderBase$Statistics]: this new event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,719 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:40:58,719 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:40:58,719 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2025-03-09 06:40:58,792 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), 42#L76true, Black: 100#(<= ~s~0 0), 70#L56-5true, 131#(<= ~s~0 1), 64#L46-5true, 13#L66-5true, 62#L101true, 82#true, Black: 123#true, 125#(not (= ~x~0 1))]) [2025-03-09 06:40:58,793 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,793 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,793 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:40:58,793 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,795 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), 9#L100-1true, 44#thread4EXITtrue, Black: 100#(<= ~s~0 0), 70#L56-5true, 131#(<= ~s~0 1), 64#L46-5true, 13#L66-5true, 82#true, Black: 123#true, 125#(not (= ~x~0 1))]) [2025-03-09 06:40:58,795 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,795 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:40:58,795 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,795 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,828 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 9#L100-1true, 132#(<= ~s~0 2), Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 70#L56-5true, 3#L76-5true, 82#true, 68#L46true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,828 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2025-03-09 06:40:58,828 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:40:58,828 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,828 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,838 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 44#thread4EXITtrue, 70#L56-5true, 131#(<= ~s~0 1), 62#L101true, 13#L66-5true, 64#L46-5true, 82#true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,838 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2025-03-09 06:40:58,838 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,838 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,838 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,859 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 132#(<= ~s~0 2), Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 3#L76-5true, 70#L56-5true, 62#L101true, 82#true, 68#L46true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,860 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2025-03-09 06:40:58,860 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,860 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,860 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:40:58,860 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 9#L100-1true, 132#(<= ~s~0 2), 18#thread1EXITtrue, Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 70#L56-5true, 3#L76-5true, 82#true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,860 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2025-03-09 06:40:58,862 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,862 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:40:58,862 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:40:58,879 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 132#(<= ~s~0 2), 18#thread1EXITtrue, Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 3#L76-5true, 70#L56-5true, 62#L101true, 82#true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,879 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2025-03-09 06:40:58,879 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:40:58,879 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:40:58,879 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2025-03-09 06:40:58,890 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 132#(<= ~s~0 2), Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 70#L56-5true, 3#L76-5true, 82#true, 52#L102true, 125#(not (= ~x~0 1)), Black: 123#true]) [2025-03-09 06:40:58,891 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2025-03-09 06:40:58,891 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:40:58,891 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2025-03-09 06:40:58,891 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2025-03-09 06:40:58,897 INFO L124 PetriNetUnfolderBase]: 13893/19335 cut-off events. [2025-03-09 06:40:58,897 INFO L125 PetriNetUnfolderBase]: For 12900/13422 co-relation queries the response was YES. [2025-03-09 06:40:58,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49618 conditions, 19335 events. 13893/19335 cut-off events. For 12900/13422 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 111452 event pairs, 1682 based on Foata normal form. 352/18889 useless extension candidates. Maximal degree in co-relation 9680. Up to 7613 conditions per place. [2025-03-09 06:40:58,999 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 131 selfloop transitions, 15 changer transitions 4/163 dead transitions. [2025-03-09 06:40:58,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 163 transitions, 867 flow [2025-03-09 06:40:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:40:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:40:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 196 transitions. [2025-03-09 06:40:59,000 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.536986301369863 [2025-03-09 06:40:59,000 INFO L175 Difference]: Start difference. First operand has 70 places, 79 transitions, 305 flow. Second operand 5 states and 196 transitions. [2025-03-09 06:40:59,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 163 transitions, 867 flow [2025-03-09 06:40:59,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 163 transitions, 839 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:40:59,007 INFO L231 Difference]: Finished difference. Result has 73 places, 79 transitions, 335 flow [2025-03-09 06:40:59,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=73, PETRI_TRANSITIONS=79} [2025-03-09 06:40:59,008 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -4 predicate places. [2025-03-09 06:40:59,008 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 79 transitions, 335 flow [2025-03-09 06:40:59,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:59,009 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:40:59,009 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:40:59,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:40:59,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2025-03-09 06:40:59,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:40:59,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1635038059, now seen corresponding path program 1 times [2025-03-09 06:40:59,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:40:59,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760322394] [2025-03-09 06:40:59,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:40:59,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:40:59,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 06:40:59,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 06:40:59,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:40:59,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:40:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:40:59,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:40:59,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760322394] [2025-03-09 06:40:59,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760322394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:40:59,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:40:59,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:40:59,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130048240] [2025-03-09 06:40:59,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:40:59,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:40:59,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:40:59,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:40:59,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:40:59,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 73 [2025-03-09 06:40:59,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 79 transitions, 335 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:40:59,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:40:59,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 73 [2025-03-09 06:40:59,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:41:00,222 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), 9#L100-1true, 42#L76true, Black: 100#(<= ~s~0 0), Black: 132#(<= ~s~0 2), 70#L56-5true, 137#(<= ~s~0 1), 131#(<= ~s~0 1), 64#L46-5true, 13#L66-5true, 82#true, Black: 123#true]) [2025-03-09 06:41:00,223 INFO L294 olderBase$Statistics]: this new event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,223 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:41:00,223 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:41:00,223 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2025-03-09 06:41:00,280 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), 42#L76true, Black: 132#(<= ~s~0 2), Black: 100#(<= ~s~0 0), 137#(<= ~s~0 1), 70#L56-5true, 131#(<= ~s~0 1), 64#L46-5true, 62#L101true, 13#L66-5true, 82#true, Black: 123#true]) [2025-03-09 06:41:00,280 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,280 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,280 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:41:00,280 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,281 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), 9#L100-1true, Black: 100#(<= ~s~0 0), Black: 132#(<= ~s~0 2), 44#thread4EXITtrue, 137#(<= ~s~0 1), 70#L56-5true, 131#(<= ~s~0 1), 64#L46-5true, 13#L66-5true, 82#true, Black: 123#true]) [2025-03-09 06:41:00,281 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,281 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:41:00,281 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,281 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,302 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 9#L100-1true, 132#(<= ~s~0 2), Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 70#L56-5true, 138#(<= ~s~0 2), 3#L76-5true, 82#true, 68#L46true, Black: 123#true]) [2025-03-09 06:41:00,303 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2025-03-09 06:41:00,303 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2025-03-09 06:41:00,303 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,303 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,311 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L45-1-->L46-5: Formula: (= v_~x~0_14 0) InVars {} OutVars{~x~0=v_~x~0_14} AuxVars[] AssignedVars[~x~0][68], [115#(<= ~s~0 1), Black: 132#(<= ~s~0 2), Black: 100#(<= ~s~0 0), 44#thread4EXITtrue, 137#(<= ~s~0 1), 70#L56-5true, 131#(<= ~s~0 1), 64#L46-5true, 62#L101true, 13#L66-5true, 82#true, Black: 123#true]) [2025-03-09 06:41:00,311 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2025-03-09 06:41:00,311 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,311 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,311 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,329 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 132#(<= ~s~0 2), Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 70#L56-5true, 3#L76-5true, 138#(<= ~s~0 2), 62#L101true, 82#true, 68#L46true, Black: 123#true]) [2025-03-09 06:41:00,329 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2025-03-09 06:41:00,329 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,329 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,329 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:41:00,330 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 9#L100-1true, 132#(<= ~s~0 2), 18#thread1EXITtrue, Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 138#(<= ~s~0 2), 70#L56-5true, 3#L76-5true, 82#true, Black: 123#true]) [2025-03-09 06:41:00,330 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2025-03-09 06:41:00,330 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,330 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2025-03-09 06:41:00,330 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:41:00,339 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 132#(<= ~s~0 2), 18#thread1EXITtrue, Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 70#L56-5true, 138#(<= ~s~0 2), 3#L76-5true, 62#L101true, 82#true, Black: 123#true]) [2025-03-09 06:41:00,339 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2025-03-09 06:41:00,339 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2025-03-09 06:41:00,339 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2025-03-09 06:41:00,339 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:41:00,343 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([522] L66-5-->L66: Formula: (and (<= |v_thread3Thread1of1ForFork3_#t~post6#1_5| 2147483646) (= v_~s~0_127 |v_thread3Thread1of1ForFork3_#t~post6#1_5|) (= v_~s~0_126 (+ |v_thread3Thread1of1ForFork3_#t~post6#1_5| 1)) (<= 0 (+ 2147483649 |v_thread3Thread1of1ForFork3_#t~post6#1_5|))) InVars {~s~0=v_~s~0_127} OutVars{thread3Thread1of1ForFork3_#t~post6#1=|v_thread3Thread1of1ForFork3_#t~post6#1_5|, ~s~0=v_~s~0_126} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post6#1, ~s~0][88], [17#L66true, 132#(<= ~s~0 2), Black: 115#(<= ~s~0 1), Black: 100#(<= ~s~0 0), 138#(<= ~s~0 2), 70#L56-5true, 3#L76-5true, 82#true, 52#L102true, Black: 123#true]) [2025-03-09 06:41:00,343 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2025-03-09 06:41:00,343 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2025-03-09 06:41:00,343 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2025-03-09 06:41:00,343 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2025-03-09 06:41:00,344 INFO L124 PetriNetUnfolderBase]: 13544/18859 cut-off events. [2025-03-09 06:41:00,344 INFO L125 PetriNetUnfolderBase]: For 21632/22190 co-relation queries the response was YES. [2025-03-09 06:41:00,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51232 conditions, 18859 events. 13544/18859 cut-off events. For 21632/22190 co-relation queries the response was YES. Maximal size of possible extension queue 782. Compared 109092 event pairs, 1617 based on Foata normal form. 455/18511 useless extension candidates. Maximal degree in co-relation 27111. Up to 7613 conditions per place. [2025-03-09 06:41:00,391 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 0 selfloop transitions, 0 changer transitions 155/155 dead transitions. [2025-03-09 06:41:00,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 155 transitions, 813 flow [2025-03-09 06:41:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:41:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:41:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2025-03-09 06:41:00,393 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4611872146118721 [2025-03-09 06:41:00,393 INFO L175 Difference]: Start difference. First operand has 73 places, 79 transitions, 335 flow. Second operand 6 states and 202 transitions. [2025-03-09 06:41:00,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 155 transitions, 813 flow [2025-03-09 06:41:00,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 155 transitions, 752 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-09 06:41:00,712 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2025-03-09 06:41:00,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2025-03-09 06:41:00,712 INFO L279 CegarLoopForPetriNet]: 77 programPoint places, -9 predicate places. [2025-03-09 06:41:00,712 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2025-03-09 06:41:00,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 36 remaining) [2025-03-09 06:41:00,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 36 remaining) [2025-03-09 06:41:00,716 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 36 remaining) [2025-03-09 06:41:00,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 36 remaining) [2025-03-09 06:41:00,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 36 remaining) [2025-03-09 06:41:00,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 36 remaining) [2025-03-09 06:41:00,717 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 36 remaining) [2025-03-09 06:41:00,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:41:00,717 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:41:00,721 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:41:00,721 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:41:00,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:41:00 BasicIcfg [2025-03-09 06:41:00,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:41:00,725 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:41:00,725 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:41:00,725 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:41:00,726 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:40:34" (3/4) ... [2025-03-09 06:41:00,727 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:41:00,729 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:41:00,729 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:41:00,729 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-09 06:41:00,729 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread4 [2025-03-09 06:41:00,735 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-03-09 06:41:00,735 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-09 06:41:00,735 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-09 06:41:00,735 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 06:41:00,789 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:41:00,789 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:41:00,789 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:41:00,790 INFO L158 Benchmark]: Toolchain (without parser) took 27303.68ms. Allocated memory was 142.6MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 106.1MB in the beginning and 10.0GB in the end (delta: -9.9GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2025-03-09 06:41:00,790 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:41:00,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.45ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 95.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:41:00,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.22ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 93.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:41:00,791 INFO L158 Benchmark]: Boogie Preprocessor took 44.57ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:41:00,791 INFO L158 Benchmark]: IcfgBuilder took 484.41ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 51.4MB in the end (delta: 39.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:41:00,791 INFO L158 Benchmark]: TraceAbstraction took 26459.56ms. Allocated memory was 142.6MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 51.4MB in the beginning and 10.0GB in the end (delta: -10.0GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2025-03-09 06:41:00,791 INFO L158 Benchmark]: Witness Printer took 64.20ms. Allocated memory is still 12.4GB. Free memory was 10.0GB in the beginning and 10.0GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:41:00,792 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.45ms. Allocated memory is still 142.6MB. Free memory was 106.1MB in the beginning and 95.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.22ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 93.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.57ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 484.41ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 51.4MB in the end (delta: 39.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26459.56ms. Allocated memory was 142.6MB in the beginning and 12.4GB in the end (delta: 12.3GB). Free memory was 51.4MB in the beginning and 10.0GB in the end (delta: -10.0GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 64.20ms. Allocated memory is still 12.4GB. Free memory was 10.0GB in the beginning and 10.0GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: 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 9 procedures, 123 locations, 128 edges, 36 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: 26.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 664 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 654 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 108 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1294 IncrementalHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 108 mSolverCounterUnsat, 6 mSDtfsCounter, 1294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=7, InterpolantAutomatonStates: 45, 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, 0.8s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 464 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:41:00,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE