./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-simpl-str-trans.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 f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:39:10,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:39:10,299 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:39:10,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:39:10,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:39:10,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:39:10,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:39:10,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:39:10,328 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:39:10,328 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:39:10,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:39:10,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:39:10,329 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:39:10,329 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:39:10,329 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:39:10,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:39:10,330 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:39:10,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:39:10,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:10,331 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:39:10,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:39:10,331 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:39:10,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:39:10,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:39:10,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:39:10,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:39:10,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:39:10,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:39:10,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:39:10,332 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 -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2025-03-09 06:39:10,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:39:10,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:39:10,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:39:10,601 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:39:10,601 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:39:10,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2025-03-09 06:39:11,788 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cf192a2/3783d1369eda4099b4812574839a59c2/FLAG3897402ea [2025-03-09 06:39:12,016 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:39:12,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2025-03-09 06:39:12,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cf192a2/3783d1369eda4099b4812574839a59c2/FLAG3897402ea [2025-03-09 06:39:12,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7cf192a2/3783d1369eda4099b4812574839a59c2 [2025-03-09 06:39:12,065 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:39:12,068 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:39:12,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:12,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:39:12,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:39:12,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d93afa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12, skipping insertion in model container [2025-03-09 06:39:12,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:39:12,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:12,233 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:39:12,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:39:12,258 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:39:12,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12 WrapperNode [2025-03-09 06:39:12,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:39:12,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:12,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:39:12,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:39:12,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,297 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 197 [2025-03-09 06:39:12,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:39:12,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:39:12,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:39:12,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:39:12,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,314 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,332 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 06:39:12,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,339 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,341 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:39:12,346 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:39:12,346 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:39:12,346 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:39:12,347 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (1/1) ... [2025-03-09 06:39:12,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:39:12,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:39:12,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:39:12,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:39:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:39:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:39:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:39:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:39:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:39:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-09 06:39:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-09 06:39:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:39:12,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:39:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:39:12,401 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:39:12,484 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:39:12,486 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:39:12,800 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:39:12,800 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:39:12,999 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:39:12,999 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:39:12,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:12 BoogieIcfgContainer [2025-03-09 06:39:12,999 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:39:13,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:39:13,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:39:13,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:39:13,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:39:12" (1/3) ... [2025-03-09 06:39:13,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384ba060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:13, skipping insertion in model container [2025-03-09 06:39:13,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:39:12" (2/3) ... [2025-03-09 06:39:13,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384ba060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:39:13, skipping insertion in model container [2025-03-09 06:39:13,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:12" (3/3) ... [2025-03-09 06:39:13,010 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2025-03-09 06:39:13,023 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:39:13,024 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-trans.wvr.c that has 4 procedures, 78 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2025-03-09 06:39:13,025 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:39:13,112 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-09 06:39:13,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 199 flow [2025-03-09 06:39:13,220 INFO L124 PetriNetUnfolderBase]: 12/86 cut-off events. [2025-03-09 06:39:13,223 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:39:13,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 12/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 335 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2025-03-09 06:39:13,229 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 89 transitions, 199 flow [2025-03-09 06:39:13,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 84 transitions, 183 flow [2025-03-09 06:39:13,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:39:13,252 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;@1b5de7c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:39:13,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-03-09 06:39:13,263 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:39:13,264 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2025-03-09 06:39:13,264 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:39:13,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:13,265 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:13,266 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:13,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:13,271 INFO L85 PathProgramCache]: Analyzing trace with hash 620187846, now seen corresponding path program 1 times [2025-03-09 06:39:13,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:13,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856954409] [2025-03-09 06:39:13,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:13,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:13,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:39:13,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:39:13,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:13,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856954409] [2025-03-09 06:39:13,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856954409] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:13,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:13,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562920009] [2025-03-09 06:39:13,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:13,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:13,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:13,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:13,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:13,544 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-03-09 06:39:13,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:13,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:13,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-03-09 06:39:13,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:14,763 INFO L124 PetriNetUnfolderBase]: 8633/13840 cut-off events. [2025-03-09 06:39:14,764 INFO L125 PetriNetUnfolderBase]: For 260/260 co-relation queries the response was YES. [2025-03-09 06:39:14,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25678 conditions, 13840 events. 8633/13840 cut-off events. For 260/260 co-relation queries the response was YES. Maximal size of possible extension queue 841. Compared 105676 event pairs, 2832 based on Foata normal form. 364/11550 useless extension candidates. Maximal degree in co-relation 24979. Up to 5668 conditions per place. [2025-03-09 06:39:14,878 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 86 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2025-03-09 06:39:14,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 475 flow [2025-03-09 06:39:14,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:14,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:14,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2025-03-09 06:39:14,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2025-03-09 06:39:14,894 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 183 flow. Second operand 4 states and 274 transitions. [2025-03-09 06:39:14,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 475 flow [2025-03-09 06:39:14,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 133 transitions, 460 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-09 06:39:14,912 INFO L231 Difference]: Finished difference. Result has 82 places, 86 transitions, 208 flow [2025-03-09 06:39:14,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2025-03-09 06:39:14,917 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2025-03-09 06:39:14,918 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 208 flow [2025-03-09 06:39:14,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:14,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:14,919 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:14,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:39:14,919 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:14,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:14,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2045954569, now seen corresponding path program 1 times [2025-03-09 06:39:14,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:14,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287192174] [2025-03-09 06:39:14,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:14,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:14,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:39:14,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:39:14,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:14,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:15,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:15,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:15,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287192174] [2025-03-09 06:39:15,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287192174] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:15,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:15,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:15,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016554549] [2025-03-09 06:39:15,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:15,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:15,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:15,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:15,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2025-03-09 06:39:15,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:15,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:15,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2025-03-09 06:39:15,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:15,770 INFO L124 PetriNetUnfolderBase]: 6311/11503 cut-off events. [2025-03-09 06:39:15,771 INFO L125 PetriNetUnfolderBase]: For 2345/2363 co-relation queries the response was YES. [2025-03-09 06:39:15,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 11503 events. 6311/11503 cut-off events. For 2345/2363 co-relation queries the response was YES. Maximal size of possible extension queue 728. Compared 97708 event pairs, 1511 based on Foata normal form. 18/9933 useless extension candidates. Maximal degree in co-relation 11989. Up to 5147 conditions per place. [2025-03-09 06:39:15,841 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 58 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2025-03-09 06:39:15,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 108 transitions, 379 flow [2025-03-09 06:39:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:15,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:15,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2025-03-09 06:39:15,844 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2025-03-09 06:39:15,845 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 208 flow. Second operand 4 states and 253 transitions. [2025-03-09 06:39:15,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 108 transitions, 379 flow [2025-03-09 06:39:15,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 108 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:39:15,875 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 214 flow [2025-03-09 06:39:15,875 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2025-03-09 06:39:15,876 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2025-03-09 06:39:15,876 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 214 flow [2025-03-09 06:39:15,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:15,877 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:15,877 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:15,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:39:15,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:15,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:15,878 INFO L85 PathProgramCache]: Analyzing trace with hash -999948022, now seen corresponding path program 1 times [2025-03-09 06:39:15,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:15,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014519133] [2025-03-09 06:39:15,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:15,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:15,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:39:15,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:39:15,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:15,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:15,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:15,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014519133] [2025-03-09 06:39:15,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014519133] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:15,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:15,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:15,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270544107] [2025-03-09 06:39:15,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:15,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:15,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:15,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:15,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:15,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2025-03-09 06:39:15,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:15,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:15,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2025-03-09 06:39:15,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:16,831 INFO L124 PetriNetUnfolderBase]: 6329/11357 cut-off events. [2025-03-09 06:39:16,831 INFO L125 PetriNetUnfolderBase]: For 4311/4329 co-relation queries the response was YES. [2025-03-09 06:39:16,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22912 conditions, 11357 events. 6329/11357 cut-off events. For 4311/4329 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 94875 event pairs, 1511 based on Foata normal form. 200/9969 useless extension candidates. Maximal degree in co-relation 12154. Up to 5329 conditions per place. [2025-03-09 06:39:16,891 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 59 selfloop transitions, 4 changer transitions 0/107 dead transitions. [2025-03-09 06:39:16,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 107 transitions, 385 flow [2025-03-09 06:39:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2025-03-09 06:39:16,893 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.699438202247191 [2025-03-09 06:39:16,893 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 214 flow. Second operand 4 states and 249 transitions. [2025-03-09 06:39:16,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 107 transitions, 385 flow [2025-03-09 06:39:16,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 107 transitions, 377 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:16,913 INFO L231 Difference]: Finished difference. Result has 83 places, 84 transitions, 210 flow [2025-03-09 06:39:16,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=83, PETRI_TRANSITIONS=84} [2025-03-09 06:39:16,914 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2025-03-09 06:39:16,914 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 84 transitions, 210 flow [2025-03-09 06:39:16,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:16,914 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:16,914 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:16,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:39:16,914 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:16,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:16,915 INFO L85 PathProgramCache]: Analyzing trace with hash -2029137799, now seen corresponding path program 1 times [2025-03-09 06:39:16,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:16,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301630122] [2025-03-09 06:39:16,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:16,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:16,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:39:16,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:39:16,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:16,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:16,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:16,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:16,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301630122] [2025-03-09 06:39:16,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301630122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:16,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:16,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:16,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582088277] [2025-03-09 06:39:16,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:16,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:16,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:16,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:16,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:17,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2025-03-09 06:39:17,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 84 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:17,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:17,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2025-03-09 06:39:17,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:17,576 INFO L124 PetriNetUnfolderBase]: 6243/11124 cut-off events. [2025-03-09 06:39:17,576 INFO L125 PetriNetUnfolderBase]: For 3675/3853 co-relation queries the response was YES. [2025-03-09 06:39:17,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21859 conditions, 11124 events. 6243/11124 cut-off events. For 3675/3853 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 91965 event pairs, 1765 based on Foata normal form. 636/9623 useless extension candidates. Maximal degree in co-relation 12542. Up to 4952 conditions per place. [2025-03-09 06:39:17,627 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 61 selfloop transitions, 3 changer transitions 0/106 dead transitions. [2025-03-09 06:39:17,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 106 transitions, 409 flow [2025-03-09 06:39:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:17,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 250 transitions. [2025-03-09 06:39:17,629 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.702247191011236 [2025-03-09 06:39:17,629 INFO L175 Difference]: Start difference. First operand has 83 places, 84 transitions, 210 flow. Second operand 4 states and 250 transitions. [2025-03-09 06:39:17,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 106 transitions, 409 flow [2025-03-09 06:39:17,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 106 transitions, 395 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:17,637 INFO L231 Difference]: Finished difference. Result has 81 places, 82 transitions, 204 flow [2025-03-09 06:39:17,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=81, PETRI_TRANSITIONS=82} [2025-03-09 06:39:17,638 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2025-03-09 06:39:17,638 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 82 transitions, 204 flow [2025-03-09 06:39:17,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:17,638 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:17,639 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:17,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:39:17,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:17,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:17,639 INFO L85 PathProgramCache]: Analyzing trace with hash -933618069, now seen corresponding path program 1 times [2025-03-09 06:39:17,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:17,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434131521] [2025-03-09 06:39:17,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:17,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:17,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:39:17,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:39:17,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:17,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:17,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:17,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:17,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434131521] [2025-03-09 06:39:17,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434131521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:17,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:17,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:17,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541459711] [2025-03-09 06:39:17,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:17,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:17,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:17,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:17,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:17,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2025-03-09 06:39:17,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 82 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:17,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:17,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2025-03-09 06:39:17,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:18,387 INFO L124 PetriNetUnfolderBase]: 8866/13776 cut-off events. [2025-03-09 06:39:18,387 INFO L125 PetriNetUnfolderBase]: For 1949/1949 co-relation queries the response was YES. [2025-03-09 06:39:18,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28823 conditions, 13776 events. 8866/13776 cut-off events. For 1949/1949 co-relation queries the response was YES. Maximal size of possible extension queue 818. Compared 101204 event pairs, 1439 based on Foata normal form. 0/12611 useless extension candidates. Maximal degree in co-relation 16047. Up to 6491 conditions per place. [2025-03-09 06:39:18,474 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 82 selfloop transitions, 6 changer transitions 0/127 dead transitions. [2025-03-09 06:39:18,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 127 transitions, 484 flow [2025-03-09 06:39:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:18,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:18,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2025-03-09 06:39:18,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7146067415730337 [2025-03-09 06:39:18,479 INFO L175 Difference]: Start difference. First operand has 81 places, 82 transitions, 204 flow. Second operand 5 states and 318 transitions. [2025-03-09 06:39:18,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 127 transitions, 484 flow [2025-03-09 06:39:18,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 127 transitions, 470 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:18,504 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 208 flow [2025-03-09 06:39:18,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=208, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2025-03-09 06:39:18,506 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -1 predicate places. [2025-03-09 06:39:18,506 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 208 flow [2025-03-09 06:39:18,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:18,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:18,507 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:18,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:39:18,507 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:18,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:18,507 INFO L85 PathProgramCache]: Analyzing trace with hash -933617076, now seen corresponding path program 1 times [2025-03-09 06:39:18,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:18,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694604845] [2025-03-09 06:39:18,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:18,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:18,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:39:18,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:39:18,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:18,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:18,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:18,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:18,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694604845] [2025-03-09 06:39:18,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694604845] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:18,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:18,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:18,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603778035] [2025-03-09 06:39:18,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:18,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:18,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:18,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:18,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:18,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-03-09 06:39:18,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:18,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:18,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-03-09 06:39:18,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:19,293 INFO L124 PetriNetUnfolderBase]: 7078/11925 cut-off events. [2025-03-09 06:39:19,293 INFO L125 PetriNetUnfolderBase]: For 4309/4309 co-relation queries the response was YES. [2025-03-09 06:39:19,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24586 conditions, 11925 events. 7078/11925 cut-off events. For 4309/4309 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 94578 event pairs, 2971 based on Foata normal form. 182/10545 useless extension candidates. Maximal degree in co-relation 13513. Up to 5734 conditions per place. [2025-03-09 06:39:19,358 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 84 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2025-03-09 06:39:19,358 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 127 transitions, 478 flow [2025-03-09 06:39:19,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:19,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2025-03-09 06:39:19,359 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7556179775280899 [2025-03-09 06:39:19,359 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 208 flow. Second operand 4 states and 269 transitions. [2025-03-09 06:39:19,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 127 transitions, 478 flow [2025-03-09 06:39:19,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 127 transitions, 466 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:19,385 INFO L231 Difference]: Finished difference. Result has 80 places, 80 transitions, 198 flow [2025-03-09 06:39:19,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=198, PETRI_PLACES=80, PETRI_TRANSITIONS=80} [2025-03-09 06:39:19,385 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2025-03-09 06:39:19,385 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 80 transitions, 198 flow [2025-03-09 06:39:19,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:19,386 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:19,386 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:19,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:39:19,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:19,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:19,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1521238223, now seen corresponding path program 1 times [2025-03-09 06:39:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:19,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482101887] [2025-03-09 06:39:19,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:19,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:19,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:39:19,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:39:19,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:19,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:19,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:19,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:19,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482101887] [2025-03-09 06:39:19,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482101887] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:19,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:19,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:19,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46183389] [2025-03-09 06:39:19,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:19,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:19,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:19,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:19,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:19,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2025-03-09 06:39:19,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 80 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:19,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:19,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2025-03-09 06:39:19,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:19,959 INFO L124 PetriNetUnfolderBase]: 4956/9521 cut-off events. [2025-03-09 06:39:19,959 INFO L125 PetriNetUnfolderBase]: For 2429/2567 co-relation queries the response was YES. [2025-03-09 06:39:19,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17841 conditions, 9521 events. 4956/9521 cut-off events. For 2429/2567 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 82243 event pairs, 1729 based on Foata normal form. 138/8095 useless extension candidates. Maximal degree in co-relation 10356. Up to 3328 conditions per place. [2025-03-09 06:39:20,017 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 59 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2025-03-09 06:39:20,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 394 flow [2025-03-09 06:39:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:20,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:20,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-03-09 06:39:20,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2025-03-09 06:39:20,019 INFO L175 Difference]: Start difference. First operand has 80 places, 80 transitions, 198 flow. Second operand 4 states and 251 transitions. [2025-03-09 06:39:20,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 394 flow [2025-03-09 06:39:20,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 103 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:20,026 INFO L231 Difference]: Finished difference. Result has 80 places, 79 transitions, 196 flow [2025-03-09 06:39:20,026 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2025-03-09 06:39:20,026 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, -2 predicate places. [2025-03-09 06:39:20,026 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 196 flow [2025-03-09 06:39:20,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:20,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:20,027 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:20,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:39:20,027 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:20,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:20,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1122611469, now seen corresponding path program 1 times [2025-03-09 06:39:20,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:20,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158181246] [2025-03-09 06:39:20,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:20,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:20,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:39:20,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:39:20,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:20,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:20,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:20,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:20,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158181246] [2025-03-09 06:39:20,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158181246] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:20,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:20,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:20,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122866569] [2025-03-09 06:39:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:20,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:20,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:20,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:20,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:20,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-03-09 06:39:20,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 196 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:20,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:20,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-03-09 06:39:20,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:20,734 INFO L124 PetriNetUnfolderBase]: 8684/13355 cut-off events. [2025-03-09 06:39:20,734 INFO L125 PetriNetUnfolderBase]: For 3059/3077 co-relation queries the response was YES. [2025-03-09 06:39:20,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27965 conditions, 13355 events. 8684/13355 cut-off events. For 3059/3077 co-relation queries the response was YES. Maximal size of possible extension queue 802. Compared 96725 event pairs, 1421 based on Foata normal form. 382/12572 useless extension candidates. Maximal degree in co-relation 14711. Up to 3687 conditions per place. [2025-03-09 06:39:20,825 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 102 selfloop transitions, 9 changer transitions 0/148 dead transitions. [2025-03-09 06:39:20,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 148 transitions, 577 flow [2025-03-09 06:39:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2025-03-09 06:39:20,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6891385767790262 [2025-03-09 06:39:20,827 INFO L175 Difference]: Start difference. First operand has 80 places, 79 transitions, 196 flow. Second operand 6 states and 368 transitions. [2025-03-09 06:39:20,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 148 transitions, 577 flow [2025-03-09 06:39:20,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 148 transitions, 559 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:20,849 INFO L231 Difference]: Finished difference. Result has 82 places, 79 transitions, 215 flow [2025-03-09 06:39:20,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=215, PETRI_PLACES=82, PETRI_TRANSITIONS=79} [2025-03-09 06:39:20,849 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2025-03-09 06:39:20,849 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 79 transitions, 215 flow [2025-03-09 06:39:20,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:20,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:20,850 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:20,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:39:20,850 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:20,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:20,850 INFO L85 PathProgramCache]: Analyzing trace with hash 741851623, now seen corresponding path program 1 times [2025-03-09 06:39:20,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:20,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287549058] [2025-03-09 06:39:20,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:20,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:20,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 06:39:20,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 06:39:20,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:20,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:20,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:20,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287549058] [2025-03-09 06:39:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287549058] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:20,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:20,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307799892] [2025-03-09 06:39:20,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:20,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:20,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:20,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:20,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:20,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-03-09 06:39:20,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 79 transitions, 215 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:20,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:20,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-03-09 06:39:20,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:21,579 INFO L124 PetriNetUnfolderBase]: 10447/16725 cut-off events. [2025-03-09 06:39:21,579 INFO L125 PetriNetUnfolderBase]: For 12085/12985 co-relation queries the response was YES. [2025-03-09 06:39:21,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36550 conditions, 16725 events. 10447/16725 cut-off events. For 12085/12985 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 130662 event pairs, 3703 based on Foata normal form. 1180/15415 useless extension candidates. Maximal degree in co-relation 20292. Up to 7188 conditions per place. [2025-03-09 06:39:21,655 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 91 selfloop transitions, 5 changer transitions 0/130 dead transitions. [2025-03-09 06:39:21,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 130 transitions, 583 flow [2025-03-09 06:39:21,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:21,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2025-03-09 06:39:21,657 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7584269662921348 [2025-03-09 06:39:21,657 INFO L175 Difference]: Start difference. First operand has 82 places, 79 transitions, 215 flow. Second operand 4 states and 270 transitions. [2025-03-09 06:39:21,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 130 transitions, 583 flow [2025-03-09 06:39:21,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 130 transitions, 552 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:21,669 INFO L231 Difference]: Finished difference. Result has 83 places, 81 transitions, 236 flow [2025-03-09 06:39:21,669 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=83, PETRI_TRANSITIONS=81} [2025-03-09 06:39:21,669 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 1 predicate places. [2025-03-09 06:39:21,669 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 81 transitions, 236 flow [2025-03-09 06:39:21,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:21,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:21,670 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:21,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 06:39:21,670 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:21,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:21,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1359906642, now seen corresponding path program 1 times [2025-03-09 06:39:21,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:21,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603989711] [2025-03-09 06:39:21,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:21,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:21,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:39:21,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:39:21,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:21,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:21,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:21,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603989711] [2025-03-09 06:39:21,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603989711] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:21,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:21,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068313608] [2025-03-09 06:39:21,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:21,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:21,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:21,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:21,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-03-09 06:39:21,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:21,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:21,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-03-09 06:39:21,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:22,471 INFO L124 PetriNetUnfolderBase]: 10482/16418 cut-off events. [2025-03-09 06:39:22,472 INFO L125 PetriNetUnfolderBase]: For 6984/7339 co-relation queries the response was YES. [2025-03-09 06:39:22,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37598 conditions, 16418 events. 10482/16418 cut-off events. For 6984/7339 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 124655 event pairs, 3761 based on Foata normal form. 415/15414 useless extension candidates. Maximal degree in co-relation 22478. Up to 7289 conditions per place. [2025-03-09 06:39:22,589 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 139 selfloop transitions, 8 changer transitions 0/182 dead transitions. [2025-03-09 06:39:22,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 182 transitions, 816 flow [2025-03-09 06:39:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:22,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2025-03-09 06:39:22,590 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2025-03-09 06:39:22,590 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 236 flow. Second operand 6 states and 396 transitions. [2025-03-09 06:39:22,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 182 transitions, 816 flow [2025-03-09 06:39:22,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 182 transitions, 811 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:22,758 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 260 flow [2025-03-09 06:39:22,758 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=82} [2025-03-09 06:39:22,758 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2025-03-09 06:39:22,758 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 260 flow [2025-03-09 06:39:22,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:22,759 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:22,759 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:22,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:39:22,759 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:22,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:22,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1522564410, now seen corresponding path program 1 times [2025-03-09 06:39:22,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:22,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74917099] [2025-03-09 06:39:22,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:22,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:22,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:39:22,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:39:22,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:22,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:22,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:22,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74917099] [2025-03-09 06:39:22,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74917099] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:22,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:22,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:22,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706564691] [2025-03-09 06:39:22,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:22,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:22,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:22,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:22,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:22,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2025-03-09 06:39:22,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:22,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:22,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2025-03-09 06:39:22,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:23,384 INFO L124 PetriNetUnfolderBase]: 7726/13941 cut-off events. [2025-03-09 06:39:23,385 INFO L125 PetriNetUnfolderBase]: For 12972/13528 co-relation queries the response was YES. [2025-03-09 06:39:23,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31477 conditions, 13941 events. 7726/13941 cut-off events. For 12972/13528 co-relation queries the response was YES. Maximal size of possible extension queue 824. Compared 120717 event pairs, 2027 based on Foata normal form. 556/12923 useless extension candidates. Maximal degree in co-relation 21537. Up to 5836 conditions per place. [2025-03-09 06:39:23,476 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 64 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2025-03-09 06:39:23,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 106 transitions, 487 flow [2025-03-09 06:39:23,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:23,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:23,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-03-09 06:39:23,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2025-03-09 06:39:23,477 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 260 flow. Second operand 4 states and 251 transitions. [2025-03-09 06:39:23,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 106 transitions, 487 flow [2025-03-09 06:39:23,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 106 transitions, 459 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:23,528 INFO L231 Difference]: Finished difference. Result has 86 places, 81 transitions, 250 flow [2025-03-09 06:39:23,528 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=86, PETRI_TRANSITIONS=81} [2025-03-09 06:39:23,528 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2025-03-09 06:39:23,529 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 81 transitions, 250 flow [2025-03-09 06:39:23,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:23,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:23,529 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:23,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:39:23,529 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:23,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:23,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1620116146, now seen corresponding path program 1 times [2025-03-09 06:39:23,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:23,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349084110] [2025-03-09 06:39:23,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:23,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:23,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:39:23,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:39:23,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:23,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:23,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:23,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349084110] [2025-03-09 06:39:23,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349084110] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:23,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:23,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:23,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388147570] [2025-03-09 06:39:23,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:23,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:23,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:23,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:23,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-03-09 06:39:23,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 81 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:23,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:23,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-03-09 06:39:23,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:24,344 INFO L124 PetriNetUnfolderBase]: 10766/19499 cut-off events. [2025-03-09 06:39:24,344 INFO L125 PetriNetUnfolderBase]: For 14922/16147 co-relation queries the response was YES. [2025-03-09 06:39:24,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42257 conditions, 19499 events. 10766/19499 cut-off events. For 14922/16147 co-relation queries the response was YES. Maximal size of possible extension queue 1081. Compared 175801 event pairs, 4640 based on Foata normal form. 1047/17680 useless extension candidates. Maximal degree in co-relation 28927. Up to 8518 conditions per place. [2025-03-09 06:39:24,448 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 100 selfloop transitions, 5 changer transitions 0/141 dead transitions. [2025-03-09 06:39:24,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 141 transitions, 692 flow [2025-03-09 06:39:24,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:24,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2025-03-09 06:39:24,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7528089887640449 [2025-03-09 06:39:24,449 INFO L175 Difference]: Start difference. First operand has 86 places, 81 transitions, 250 flow. Second operand 4 states and 268 transitions. [2025-03-09 06:39:24,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 141 transitions, 692 flow [2025-03-09 06:39:24,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 141 transitions, 672 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:24,473 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 269 flow [2025-03-09 06:39:24,473 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=269, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2025-03-09 06:39:24,473 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2025-03-09 06:39:24,473 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 269 flow [2025-03-09 06:39:24,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:24,474 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:24,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:39:24,474 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:24,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1620115153, now seen corresponding path program 1 times [2025-03-09 06:39:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:24,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144439277] [2025-03-09 06:39:24,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:24,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:39:24,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:39:24,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:24,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:24,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:24,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144439277] [2025-03-09 06:39:24,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144439277] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:24,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:24,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:24,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160988219] [2025-03-09 06:39:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:24,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:24,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:24,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:24,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:24,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2025-03-09 06:39:24,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 269 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:24,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:24,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2025-03-09 06:39:24,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:25,723 INFO L124 PetriNetUnfolderBase]: 13072/20814 cut-off events. [2025-03-09 06:39:25,723 INFO L125 PetriNetUnfolderBase]: For 18032/19691 co-relation queries the response was YES. [2025-03-09 06:39:25,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50298 conditions, 20814 events. 13072/20814 cut-off events. For 18032/19691 co-relation queries the response was YES. Maximal size of possible extension queue 1131. Compared 164731 event pairs, 2189 based on Foata normal form. 1372/20962 useless extension candidates. Maximal degree in co-relation 34413. Up to 9910 conditions per place. [2025-03-09 06:39:25,869 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 99 selfloop transitions, 6 changer transitions 0/139 dead transitions. [2025-03-09 06:39:25,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 139 transitions, 691 flow [2025-03-09 06:39:25,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 316 transitions. [2025-03-09 06:39:25,870 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7101123595505618 [2025-03-09 06:39:25,871 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 269 flow. Second operand 5 states and 316 transitions. [2025-03-09 06:39:25,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 139 transitions, 691 flow [2025-03-09 06:39:25,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 139 transitions, 688 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:25,945 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 283 flow [2025-03-09 06:39:25,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=283, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2025-03-09 06:39:25,945 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-03-09 06:39:25,945 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 283 flow [2025-03-09 06:39:25,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:25,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:25,946 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:25,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 06:39:25,946 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:25,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:25,946 INFO L85 PathProgramCache]: Analyzing trace with hash -45173717, now seen corresponding path program 1 times [2025-03-09 06:39:25,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:25,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113343090] [2025-03-09 06:39:25,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:25,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:25,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:39:25,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:39:25,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:25,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:25,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:25,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113343090] [2025-03-09 06:39:25,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113343090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:25,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:25,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:39:25,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749753417] [2025-03-09 06:39:25,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:25,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:25,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:25,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:25,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2025-03-09 06:39:25,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:25,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:25,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2025-03-09 06:39:25,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:26,872 INFO L124 PetriNetUnfolderBase]: 9596/17520 cut-off events. [2025-03-09 06:39:26,873 INFO L125 PetriNetUnfolderBase]: For 17689/18786 co-relation queries the response was YES. [2025-03-09 06:39:26,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41498 conditions, 17520 events. 9596/17520 cut-off events. For 17689/18786 co-relation queries the response was YES. Maximal size of possible extension queue 999. Compared 157273 event pairs, 2522 based on Foata normal form. 1213/17096 useless extension candidates. Maximal degree in co-relation 28709. Up to 7473 conditions per place. [2025-03-09 06:39:26,946 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 71 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2025-03-09 06:39:26,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 110 transitions, 544 flow [2025-03-09 06:39:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:26,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2025-03-09 06:39:26,947 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6938202247191011 [2025-03-09 06:39:26,947 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 283 flow. Second operand 4 states and 247 transitions. [2025-03-09 06:39:26,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 110 transitions, 544 flow [2025-03-09 06:39:26,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 110 transitions, 529 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:26,992 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 278 flow [2025-03-09 06:39:26,992 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2025-03-09 06:39:26,992 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-03-09 06:39:26,992 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 278 flow [2025-03-09 06:39:26,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:26,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:26,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:26,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 06:39:26,993 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:26,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:26,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1316037248, now seen corresponding path program 1 times [2025-03-09 06:39:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:26,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978648798] [2025-03-09 06:39:26,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:26,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:26,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:39:26,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:39:26,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:26,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:27,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:27,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978648798] [2025-03-09 06:39:27,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978648798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:27,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:27,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:27,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265668705] [2025-03-09 06:39:27,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:27,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:27,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:27,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:27,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:27,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-03-09 06:39:27,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 278 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:27,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:27,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-03-09 06:39:27,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:28,000 INFO L124 PetriNetUnfolderBase]: 13072/20485 cut-off events. [2025-03-09 06:39:28,000 INFO L125 PetriNetUnfolderBase]: For 22057/23438 co-relation queries the response was YES. [2025-03-09 06:39:28,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51859 conditions, 20485 events. 13072/20485 cut-off events. For 22057/23438 co-relation queries the response was YES. Maximal size of possible extension queue 1142. Compared 158731 event pairs, 2180 based on Foata normal form. 1931/21192 useless extension candidates. Maximal degree in co-relation 35551. Up to 5475 conditions per place. [2025-03-09 06:39:28,164 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 124 selfloop transitions, 9 changer transitions 0/166 dead transitions. [2025-03-09 06:39:28,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 166 transitions, 880 flow [2025-03-09 06:39:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2025-03-09 06:39:28,166 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6835205992509363 [2025-03-09 06:39:28,166 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 278 flow. Second operand 6 states and 365 transitions. [2025-03-09 06:39:28,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 166 transitions, 880 flow [2025-03-09 06:39:28,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 166 transitions, 854 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:39:28,237 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 295 flow [2025-03-09 06:39:28,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=295, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2025-03-09 06:39:28,238 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2025-03-09 06:39:28,238 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 295 flow [2025-03-09 06:39:28,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:28,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:28,238 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:28,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 06:39:28,238 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:28,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:28,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1400385636, now seen corresponding path program 1 times [2025-03-09 06:39:28,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:28,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680131379] [2025-03-09 06:39:28,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:28,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:28,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:39:28,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:39:28,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:28,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:28,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:28,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680131379] [2025-03-09 06:39:28,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680131379] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:28,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:28,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:28,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587390498] [2025-03-09 06:39:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:28,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:28,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:28,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:28,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:28,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2025-03-09 06:39:28,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:28,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:28,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2025-03-09 06:39:28,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:29,237 INFO L124 PetriNetUnfolderBase]: 13320/20624 cut-off events. [2025-03-09 06:39:29,237 INFO L125 PetriNetUnfolderBase]: For 28063/30622 co-relation queries the response was YES. [2025-03-09 06:39:29,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55206 conditions, 20624 events. 13320/20624 cut-off events. For 28063/30622 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 156780 event pairs, 2539 based on Foata normal form. 2053/21670 useless extension candidates. Maximal degree in co-relation 38105. Up to 9209 conditions per place. [2025-03-09 06:39:29,381 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 102 selfloop transitions, 6 changer transitions 0/139 dead transitions. [2025-03-09 06:39:29,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 139 transitions, 765 flow [2025-03-09 06:39:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:39:29,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:39:29,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 314 transitions. [2025-03-09 06:39:29,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7056179775280899 [2025-03-09 06:39:29,383 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 295 flow. Second operand 5 states and 314 transitions. [2025-03-09 06:39:29,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 139 transitions, 765 flow [2025-03-09 06:39:29,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 139 transitions, 734 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:29,463 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 292 flow [2025-03-09 06:39:29,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2025-03-09 06:39:29,464 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-03-09 06:39:29,464 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 292 flow [2025-03-09 06:39:29,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:29,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:29,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:29,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-09 06:39:29,464 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:29,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1400384643, now seen corresponding path program 1 times [2025-03-09 06:39:29,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:29,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555616537] [2025-03-09 06:39:29,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:29,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:29,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:39:29,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:39:29,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:29,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:29,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:29,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:29,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555616537] [2025-03-09 06:39:29,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555616537] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:29,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:29,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:29,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019277455] [2025-03-09 06:39:29,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:29,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:29,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:29,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:29,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:29,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-03-09 06:39:29,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:29,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:29,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-03-09 06:39:29,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:30,403 INFO L124 PetriNetUnfolderBase]: 10843/18293 cut-off events. [2025-03-09 06:39:30,404 INFO L125 PetriNetUnfolderBase]: For 22101/23984 co-relation queries the response was YES. [2025-03-09 06:39:30,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46999 conditions, 18293 events. 10843/18293 cut-off events. For 22101/23984 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 152976 event pairs, 4871 based on Foata normal form. 1861/19124 useless extension candidates. Maximal degree in co-relation 32425. Up to 9101 conditions per place. [2025-03-09 06:39:30,490 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 104 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2025-03-09 06:39:30,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 139 transitions, 742 flow [2025-03-09 06:39:30,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2025-03-09 06:39:30,492 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2025-03-09 06:39:30,492 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 292 flow. Second operand 4 states and 265 transitions. [2025-03-09 06:39:30,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 139 transitions, 742 flow [2025-03-09 06:39:30,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 139 transitions, 730 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:39:30,535 INFO L231 Difference]: Finished difference. Result has 90 places, 80 transitions, 282 flow [2025-03-09 06:39:30,535 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=90, PETRI_TRANSITIONS=80} [2025-03-09 06:39:30,536 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2025-03-09 06:39:30,536 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 80 transitions, 282 flow [2025-03-09 06:39:30,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:30,536 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:30,536 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:30,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-09 06:39:30,536 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:30,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:30,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1223759528, now seen corresponding path program 1 times [2025-03-09 06:39:30,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:30,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984910926] [2025-03-09 06:39:30,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:30,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:30,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:39:30,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:39:30,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:30,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:30,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:30,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984910926] [2025-03-09 06:39:30,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984910926] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:30,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:30,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:39:30,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793518425] [2025-03-09 06:39:30,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:30,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:39:30,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:30,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:39:30,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:39:30,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2025-03-09 06:39:30,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 80 transitions, 282 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:30,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:30,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2025-03-09 06:39:30,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:31,451 INFO L124 PetriNetUnfolderBase]: 12976/20345 cut-off events. [2025-03-09 06:39:31,451 INFO L125 PetriNetUnfolderBase]: For 24267/25768 co-relation queries the response was YES. [2025-03-09 06:39:31,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53068 conditions, 20345 events. 12976/20345 cut-off events. For 24267/25768 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 157767 event pairs, 4595 based on Foata normal form. 1776/21088 useless extension candidates. Maximal degree in co-relation 36316. Up to 8717 conditions per place. [2025-03-09 06:39:31,597 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 100 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2025-03-09 06:39:31,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 136 transitions, 714 flow [2025-03-09 06:39:31,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:39:31,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:39:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2025-03-09 06:39:31,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2025-03-09 06:39:31,599 INFO L175 Difference]: Start difference. First operand has 90 places, 80 transitions, 282 flow. Second operand 4 states and 265 transitions. [2025-03-09 06:39:31,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 136 transitions, 714 flow [2025-03-09 06:39:31,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 136 transitions, 698 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:39:31,636 INFO L231 Difference]: Finished difference. Result has 91 places, 80 transitions, 290 flow [2025-03-09 06:39:31,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=91, PETRI_TRANSITIONS=80} [2025-03-09 06:39:31,637 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2025-03-09 06:39:31,637 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 80 transitions, 290 flow [2025-03-09 06:39:31,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:31,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:31,637 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:31,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-09 06:39:31,637 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:31,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:31,638 INFO L85 PathProgramCache]: Analyzing trace with hash -462281170, now seen corresponding path program 1 times [2025-03-09 06:39:31,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:31,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228530384] [2025-03-09 06:39:31,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:31,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:31,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 06:39:31,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 06:39:31,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:31,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:31,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:31,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:31,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228530384] [2025-03-09 06:39:31,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228530384] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:31,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:31,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:39:31,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443881517] [2025-03-09 06:39:31,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:31,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:39:31,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:31,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:39:31,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:39:31,708 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-03-09 06:39:31,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 80 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:31,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:31,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-03-09 06:39:31,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:32,725 INFO L124 PetriNetUnfolderBase]: 14136/21737 cut-off events. [2025-03-09 06:39:32,726 INFO L125 PetriNetUnfolderBase]: For 32592/34747 co-relation queries the response was YES. [2025-03-09 06:39:32,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59618 conditions, 21737 events. 14136/21737 cut-off events. For 32592/34747 co-relation queries the response was YES. Maximal size of possible extension queue 1175. Compared 165180 event pairs, 2778 based on Foata normal form. 2709/23357 useless extension candidates. Maximal degree in co-relation 44794. Up to 5672 conditions per place. [2025-03-09 06:39:32,872 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 132 selfloop transitions, 9 changer transitions 0/170 dead transitions. [2025-03-09 06:39:32,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 170 transitions, 980 flow [2025-03-09 06:39:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2025-03-09 06:39:32,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6779026217228464 [2025-03-09 06:39:32,874 INFO L175 Difference]: Start difference. First operand has 91 places, 80 transitions, 290 flow. Second operand 6 states and 362 transitions. [2025-03-09 06:39:32,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 170 transitions, 980 flow [2025-03-09 06:39:32,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 170 transitions, 964 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:39:32,955 INFO L231 Difference]: Finished difference. Result has 95 places, 80 transitions, 311 flow [2025-03-09 06:39:32,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=95, PETRI_TRANSITIONS=80} [2025-03-09 06:39:32,955 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2025-03-09 06:39:32,955 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 80 transitions, 311 flow [2025-03-09 06:39:32,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:32,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:39:32,956 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:32,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-09 06:39:32,956 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:39:32,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:39:32,956 INFO L85 PathProgramCache]: Analyzing trace with hash -527124861, now seen corresponding path program 1 times [2025-03-09 06:39:32,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:39:32,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851383066] [2025-03-09 06:39:32,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:39:32,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:39:32,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:39:32,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:39:32,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:39:32,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:39:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:39:32,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:39:32,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851383066] [2025-03-09 06:39:32,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851383066] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:39:32,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:39:32,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:39:32,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035929090] [2025-03-09 06:39:32,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:39:32,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:39:32,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:39:32,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:39:32,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:39:33,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2025-03-09 06:39:33,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 80 transitions, 311 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:33,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:39:33,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2025-03-09 06:39:33,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:39:34,014 INFO L124 PetriNetUnfolderBase]: 14136/21078 cut-off events. [2025-03-09 06:39:34,015 INFO L125 PetriNetUnfolderBase]: For 33451/35565 co-relation queries the response was YES. [2025-03-09 06:39:34,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61197 conditions, 21078 events. 14136/21078 cut-off events. For 33451/35565 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 153309 event pairs, 5330 based on Foata normal form. 2391/22865 useless extension candidates. Maximal degree in co-relation 46225. Up to 10143 conditions per place. [2025-03-09 06:39:34,091 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 0 selfloop transitions, 0 changer transitions 201/201 dead transitions. [2025-03-09 06:39:34,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 201 transitions, 1189 flow [2025-03-09 06:39:34,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:39:34,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:39:34,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2025-03-09 06:39:34,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7265917602996255 [2025-03-09 06:39:34,092 INFO L175 Difference]: Start difference. First operand has 95 places, 80 transitions, 311 flow. Second operand 6 states and 388 transitions. [2025-03-09 06:39:34,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 201 transitions, 1189 flow [2025-03-09 06:39:34,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 201 transitions, 1171 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-03-09 06:39:34,240 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2025-03-09 06:39:34,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2025-03-09 06:39:34,241 INFO L279 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2025-03-09 06:39:34,241 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2025-03-09 06:39:34,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2025-03-09 06:39:34,243 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2025-03-09 06:39:34,244 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2025-03-09 06:39:34,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-09 06:39:34,244 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:39:34,248 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:39:34,248 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:39:34,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:39:34 BasicIcfg [2025-03-09 06:39:34,251 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:39:34,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:39:34,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:39:34,252 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:39:34,252 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:39:12" (3/4) ... [2025-03-09 06:39:34,253 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:39:34,255 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:39:34,255 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:39:34,255 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-09 06:39:34,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-03-09 06:39:34,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2025-03-09 06:39:34,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-09 06:39:34,258 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 06:39:34,311 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:39:34,311 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:39:34,311 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:39:34,312 INFO L158 Benchmark]: Toolchain (without parser) took 22244.30ms. Allocated memory was 142.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 105.5MB in the beginning and 1.1GB in the end (delta: -998.4MB). Peak memory consumption was 750.4MB. Max. memory is 16.1GB. [2025-03-09 06:39:34,312 INFO L158 Benchmark]: CDTParser took 0.26ms. 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 06:39:34,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.93ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 94.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:39:34,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.78ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 91.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:39:34,314 INFO L158 Benchmark]: Boogie Preprocessor took 43.96ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 90.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:39:34,314 INFO L158 Benchmark]: IcfgBuilder took 653.70ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 47.4MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-09 06:39:34,315 INFO L158 Benchmark]: TraceAbstraction took 21248.97ms. Allocated memory was 142.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 46.3MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2025-03-09 06:39:34,315 INFO L158 Benchmark]: Witness Printer took 59.35ms. Allocated memory is still 1.9GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:39:34,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.93ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 94.3MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.78ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 91.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.96ms. Allocated memory is still 142.6MB. Free memory was 91.6MB in the beginning and 90.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 653.70ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 47.4MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 21248.97ms. Allocated memory was 142.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 46.3MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 59.35ms. Allocated memory is still 1.9GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 170 edges, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.1s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1962 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1676 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 111 mSDsCounter, 99 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3947 IncrementalHoareTripleChecker+Invalid, 4046 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 99 mSolverCounterUnsat, 106 mSDtfsCounter, 3947 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=19, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 707 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:39:34,331 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