./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-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 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 23:38:13,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:38:13,550 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 23:38:13,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:38:13,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:38:13,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:38:13,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:38:13,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:38:13,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:38:13,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:38:13,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 23:38:13,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 23:38:13,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:38:13,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:38:13,597 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:38:13,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:38:13,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 23:38:13,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 23:38:13,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:38:13,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 23:38:13,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:38:13,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 23:38:13,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 23:38:13,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 23:38:13,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:38:13,604 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 23:38:13,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:38:13,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 23:38:13,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:38:13,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:38:13,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:38:13,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:38:13,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 23:38:13,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 23:38:13,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:38:13,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:38:13,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 23:38:13,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 23:38:13,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:38:13,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 23:38:13,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 23:38:13,608 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 23:38:13,608 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 23:38:13,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 23:38:13,609 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2024-10-24 23:38:13,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:38:13,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:38:13,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:38:13,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:38:13,891 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:38:13,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-10-24 23:38:15,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:38:15,556 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:38:15,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-10-24 23:38:15,564 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07de70b2b/84cbf447b63d45bd8515dcd26440e37c/FLAG3b9a96de6 [2024-10-24 23:38:15,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07de70b2b/84cbf447b63d45bd8515dcd26440e37c [2024-10-24 23:38:15,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:38:15,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:38:15,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:38:15,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:38:15,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:38:15,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:15,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62a2748d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15, skipping insertion in model container [2024-10-24 23:38:15,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:15,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:38:15,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:38:15,889 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:38:15,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:38:15,947 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:38:15,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15 WrapperNode [2024-10-24 23:38:15,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:38:15,949 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:38:15,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:38:15,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:38:15,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:15,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:15,990 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 236 [2024-10-24 23:38:15,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:38:15,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:38:15,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:38:15,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:38:16,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,004 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,029 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]. [2024-10-24 23:38:16,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:38:16,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:38:16,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:38:16,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:38:16,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (1/1) ... [2024-10-24 23:38:16,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 23:38:16,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:38:16,094 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) [2024-10-24 23:38:16,097 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 [2024-10-24 23:38:16,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 23:38:16,151 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 23:38:16,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 23:38:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 23:38:16,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 23:38:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 23:38:16,152 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 23:38:16,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 23:38:16,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:38:16,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:38:16,156 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 23:38:16,287 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:38:16,289 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:38:16,787 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 23:38:16,788 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:38:17,062 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:38:17,062 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 23:38:17,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:38:17 BoogieIcfgContainer [2024-10-24 23:38:17,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:38:17,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 23:38:17,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 23:38:17,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 23:38:17,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:38:15" (1/3) ... [2024-10-24 23:38:17,072 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc7961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:38:17, skipping insertion in model container [2024-10-24 23:38:17,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:38:15" (2/3) ... [2024-10-24 23:38:17,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc7961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:38:17, skipping insertion in model container [2024-10-24 23:38:17,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:38:17" (3/3) ... [2024-10-24 23:38:17,075 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2024-10-24 23:38:17,093 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 23:38:17,093 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-24 23:38:17,093 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 23:38:17,207 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-24 23:38:17,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 107 transitions, 235 flow [2024-10-24 23:38:17,299 INFO L124 PetriNetUnfolderBase]: 18/104 cut-off events. [2024-10-24 23:38:17,299 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-24 23:38:17,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 104 events. 18/104 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 387 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2024-10-24 23:38:17,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 107 transitions, 235 flow [2024-10-24 23:38:17,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 102 transitions, 219 flow [2024-10-24 23:38:17,320 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 23:38:17,328 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;@7f489c68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 23:38:17,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-24 23:38:17,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 23:38:17,343 INFO L124 PetriNetUnfolderBase]: 7/43 cut-off events. [2024-10-24 23:38:17,343 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-24 23:38:17,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:17,344 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:17,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:17,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash -442347577, now seen corresponding path program 1 times [2024-10-24 23:38:17,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:17,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612284890] [2024-10-24 23:38:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:17,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:17,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:17,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:17,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:17,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612284890] [2024-10-24 23:38:17,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612284890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:17,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:17,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:17,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747856797] [2024-10-24 23:38:17,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:17,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:17,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:17,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:17,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:17,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-10-24 23:38:17,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 102 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:17,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:17,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-10-24 23:38:17,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:20,276 INFO L124 PetriNetUnfolderBase]: 14059/22486 cut-off events. [2024-10-24 23:38:20,276 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-10-24 23:38:20,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41488 conditions, 22486 events. 14059/22486 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 1406. Compared 186337 event pairs, 5420 based on Foata normal form. 532/18838 useless extension candidates. Maximal degree in co-relation 40483. Up to 10138 conditions per place. [2024-10-24 23:38:20,481 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 100 selfloop transitions, 5 changer transitions 0/159 dead transitions. [2024-10-24 23:38:20,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 159 transitions, 555 flow [2024-10-24 23:38:20,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:20,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2024-10-24 23:38:20,495 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7850467289719626 [2024-10-24 23:38:20,497 INFO L175 Difference]: Start difference. First operand has 94 places, 102 transitions, 219 flow. Second operand 4 states and 336 transitions. [2024-10-24 23:38:20,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 159 transitions, 555 flow [2024-10-24 23:38:20,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 159 transitions, 540 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 23:38:20,517 INFO L231 Difference]: Finished difference. Result has 94 places, 104 transitions, 244 flow [2024-10-24 23:38:20,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=104} [2024-10-24 23:38:20,523 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-10-24 23:38:20,525 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 104 transitions, 244 flow [2024-10-24 23:38:20,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:20,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:20,526 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:20,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 23:38:20,526 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:20,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:20,527 INFO L85 PathProgramCache]: Analyzing trace with hash -827872212, now seen corresponding path program 1 times [2024-10-24 23:38:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:20,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227948435] [2024-10-24 23:38:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:20,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:20,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:20,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227948435] [2024-10-24 23:38:20,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227948435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:20,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:20,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:20,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431932565] [2024-10-24 23:38:20,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:20,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:20,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:20,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-10-24 23:38:20,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 104 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:20,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:20,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-10-24 23:38:20,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:22,280 INFO L124 PetriNetUnfolderBase]: 10585/19081 cut-off events. [2024-10-24 23:38:22,281 INFO L125 PetriNetUnfolderBase]: For 3423/3445 co-relation queries the response was YES. [2024-10-24 23:38:22,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36848 conditions, 19081 events. 10585/19081 cut-off events. For 3423/3445 co-relation queries the response was YES. Maximal size of possible extension queue 1217. Compared 175600 event pairs, 3367 based on Foata normal form. 22/16420 useless extension candidates. Maximal degree in co-relation 21643. Up to 7399 conditions per place. [2024-10-24 23:38:22,472 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 68 selfloop transitions, 4 changer transitions 0/130 dead transitions. [2024-10-24 23:38:22,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 130 transitions, 443 flow [2024-10-24 23:38:22,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:22,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:22,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 311 transitions. [2024-10-24 23:38:22,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7266355140186916 [2024-10-24 23:38:22,475 INFO L175 Difference]: Start difference. First operand has 94 places, 104 transitions, 244 flow. Second operand 4 states and 311 transitions. [2024-10-24 23:38:22,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 130 transitions, 443 flow [2024-10-24 23:38:22,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:38:22,659 INFO L231 Difference]: Finished difference. Result has 96 places, 103 transitions, 250 flow [2024-10-24 23:38:22,659 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=103} [2024-10-24 23:38:22,660 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 2 predicate places. [2024-10-24 23:38:22,660 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 103 transitions, 250 flow [2024-10-24 23:38:22,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:22,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:22,661 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:22,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 23:38:22,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:22,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:22,662 INFO L85 PathProgramCache]: Analyzing trace with hash 829868616, now seen corresponding path program 1 times [2024-10-24 23:38:22,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:22,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291149832] [2024-10-24 23:38:22,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:22,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:22,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:22,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291149832] [2024-10-24 23:38:22,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291149832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:22,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:22,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100092962] [2024-10-24 23:38:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:22,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:22,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:22,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:22,906 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-10-24 23:38:22,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 103 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:22,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:22,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-10-24 23:38:22,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:24,245 INFO L124 PetriNetUnfolderBase]: 10457/18631 cut-off events. [2024-10-24 23:38:24,245 INFO L125 PetriNetUnfolderBase]: For 5307/5822 co-relation queries the response was YES. [2024-10-24 23:38:24,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35999 conditions, 18631 events. 10457/18631 cut-off events. For 5307/5822 co-relation queries the response was YES. Maximal size of possible extension queue 1205. Compared 169445 event pairs, 3897 based on Foata normal form. 904/15982 useless extension candidates. Maximal degree in co-relation 22400. Up to 6904 conditions per place. [2024-10-24 23:38:24,384 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 71 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2024-10-24 23:38:24,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 129 transitions, 477 flow [2024-10-24 23:38:24,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:24,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2024-10-24 23:38:24,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.719626168224299 [2024-10-24 23:38:24,387 INFO L175 Difference]: Start difference. First operand has 96 places, 103 transitions, 250 flow. Second operand 4 states and 308 transitions. [2024-10-24 23:38:24,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 129 transitions, 477 flow [2024-10-24 23:38:24,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 129 transitions, 463 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:24,432 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 244 flow [2024-10-24 23:38:24,432 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2024-10-24 23:38:24,434 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-10-24 23:38:24,434 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 244 flow [2024-10-24 23:38:24,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:24,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:24,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:24,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 23:38:24,436 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:24,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:24,437 INFO L85 PathProgramCache]: Analyzing trace with hash 105734219, now seen corresponding path program 1 times [2024-10-24 23:38:24,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:24,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913855181] [2024-10-24 23:38:24,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:24,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:24,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:24,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:24,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913855181] [2024-10-24 23:38:24,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913855181] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:24,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:24,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:24,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256451755] [2024-10-24 23:38:24,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:24,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:24,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:24,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:24,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-10-24 23:38:24,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:24,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:24,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-10-24 23:38:24,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:25,891 INFO L124 PetriNetUnfolderBase]: 10607/18849 cut-off events. [2024-10-24 23:38:25,892 INFO L125 PetriNetUnfolderBase]: For 4869/4891 co-relation queries the response was YES. [2024-10-24 23:38:25,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37310 conditions, 18849 events. 10607/18849 cut-off events. For 4869/4891 co-relation queries the response was YES. Maximal size of possible extension queue 1200. Compared 170676 event pairs, 3367 based on Foata normal form. 288/16759 useless extension candidates. Maximal degree in co-relation 22064. Up to 7665 conditions per place. [2024-10-24 23:38:26,194 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2024-10-24 23:38:26,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 127 transitions, 447 flow [2024-10-24 23:38:26,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2024-10-24 23:38:26,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7172897196261683 [2024-10-24 23:38:26,196 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 244 flow. Second operand 4 states and 307 transitions. [2024-10-24 23:38:26,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 127 transitions, 447 flow [2024-10-24 23:38:26,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 127 transitions, 437 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:26,262 INFO L231 Difference]: Finished difference. Result has 93 places, 100 transitions, 242 flow [2024-10-24 23:38:26,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=93, PETRI_TRANSITIONS=100} [2024-10-24 23:38:26,264 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2024-10-24 23:38:26,264 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 100 transitions, 242 flow [2024-10-24 23:38:26,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:26,264 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:26,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:26,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 23:38:26,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:26,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:26,267 INFO L85 PathProgramCache]: Analyzing trace with hash -43875862, now seen corresponding path program 1 times [2024-10-24 23:38:26,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:26,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976492780] [2024-10-24 23:38:26,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:26,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:26,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:26,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976492780] [2024-10-24 23:38:26,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976492780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:26,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:26,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:26,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235789779] [2024-10-24 23:38:26,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:26,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:26,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:26,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:26,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:26,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-10-24 23:38:26,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 100 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:26,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:26,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-10-24 23:38:26,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:27,537 INFO L124 PetriNetUnfolderBase]: 8675/16503 cut-off events. [2024-10-24 23:38:27,538 INFO L125 PetriNetUnfolderBase]: For 4325/4535 co-relation queries the response was YES. [2024-10-24 23:38:27,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30814 conditions, 16503 events. 8675/16503 cut-off events. For 4325/4535 co-relation queries the response was YES. Maximal size of possible extension queue 1063. Compared 156432 event pairs, 3853 based on Foata normal form. 210/13860 useless extension candidates. Maximal degree in co-relation 19157. Up to 6904 conditions per place. [2024-10-24 23:38:27,633 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 69 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-10-24 23:38:27,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 127 transitions, 467 flow [2024-10-24 23:38:27,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-10-24 23:38:27,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2024-10-24 23:38:27,636 INFO L175 Difference]: Start difference. First operand has 93 places, 100 transitions, 242 flow. Second operand 4 states and 309 transitions. [2024-10-24 23:38:27,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 127 transitions, 467 flow [2024-10-24 23:38:27,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 453 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:27,671 INFO L231 Difference]: Finished difference. Result has 92 places, 99 transitions, 238 flow [2024-10-24 23:38:27,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=92, PETRI_TRANSITIONS=99} [2024-10-24 23:38:27,674 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-10-24 23:38:27,674 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 99 transitions, 238 flow [2024-10-24 23:38:27,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:27,675 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:27,675 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:27,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 23:38:27,675 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:27,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:27,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1017206738, now seen corresponding path program 1 times [2024-10-24 23:38:27,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:27,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680981167] [2024-10-24 23:38:27,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:27,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:27,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:27,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:27,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680981167] [2024-10-24 23:38:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680981167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:27,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:27,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:27,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165672756] [2024-10-24 23:38:27,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:27,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:27,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:27,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:27,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:27,808 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-10-24 23:38:27,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 99 transitions, 238 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:27,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:27,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-10-24 23:38:27,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:29,294 INFO L124 PetriNetUnfolderBase]: 14252/22265 cut-off events. [2024-10-24 23:38:29,294 INFO L125 PetriNetUnfolderBase]: For 2755/2755 co-relation queries the response was YES. [2024-10-24 23:38:29,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45808 conditions, 22265 events. 14252/22265 cut-off events. For 2755/2755 co-relation queries the response was YES. Maximal size of possible extension queue 1392. Compared 180620 event pairs, 3279 based on Foata normal form. 0/20221 useless extension candidates. Maximal degree in co-relation 27416. Up to 9347 conditions per place. [2024-10-24 23:38:29,440 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 96 selfloop transitions, 6 changer transitions 0/152 dead transitions. [2024-10-24 23:38:29,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 562 flow [2024-10-24 23:38:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 392 transitions. [2024-10-24 23:38:29,442 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7327102803738318 [2024-10-24 23:38:29,442 INFO L175 Difference]: Start difference. First operand has 92 places, 99 transitions, 238 flow. Second operand 5 states and 392 transitions. [2024-10-24 23:38:29,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 562 flow [2024-10-24 23:38:29,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 152 transitions, 548 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:29,506 INFO L231 Difference]: Finished difference. Result has 92 places, 98 transitions, 242 flow [2024-10-24 23:38:29,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=242, PETRI_PLACES=92, PETRI_TRANSITIONS=98} [2024-10-24 23:38:29,507 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -2 predicate places. [2024-10-24 23:38:29,508 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 98 transitions, 242 flow [2024-10-24 23:38:29,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:29,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:29,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:29,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 23:38:29,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:29,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:29,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1017205713, now seen corresponding path program 1 times [2024-10-24 23:38:29,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:29,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203375490] [2024-10-24 23:38:29,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:29,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:29,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:29,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203375490] [2024-10-24 23:38:29,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203375490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:29,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:29,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:29,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613791674] [2024-10-24 23:38:29,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:29,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:29,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:29,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:29,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:29,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-10-24 23:38:29,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 98 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:29,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:29,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-10-24 23:38:29,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:30,627 INFO L124 PetriNetUnfolderBase]: 11720/19787 cut-off events. [2024-10-24 23:38:30,627 INFO L125 PetriNetUnfolderBase]: For 6303/6303 co-relation queries the response was YES. [2024-10-24 23:38:30,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40012 conditions, 19787 events. 11720/19787 cut-off events. For 6303/6303 co-relation queries the response was YES. Maximal size of possible extension queue 1239. Compared 172073 event pairs, 5591 based on Foata normal form. 266/17417 useless extension candidates. Maximal degree in co-relation 23802. Up to 10172 conditions per place. [2024-10-24 23:38:30,767 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 98 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-10-24 23:38:30,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 152 transitions, 556 flow [2024-10-24 23:38:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-10-24 23:38:30,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7733644859813084 [2024-10-24 23:38:30,769 INFO L175 Difference]: Start difference. First operand has 92 places, 98 transitions, 242 flow. Second operand 4 states and 331 transitions. [2024-10-24 23:38:30,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 152 transitions, 556 flow [2024-10-24 23:38:30,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 152 transitions, 544 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:38:30,822 INFO L231 Difference]: Finished difference. Result has 91 places, 97 transitions, 232 flow [2024-10-24 23:38:30,822 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=91, PETRI_TRANSITIONS=97} [2024-10-24 23:38:30,823 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2024-10-24 23:38:30,823 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 97 transitions, 232 flow [2024-10-24 23:38:30,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:30,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:30,824 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:30,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 23:38:30,824 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:30,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1846275519, now seen corresponding path program 1 times [2024-10-24 23:38:30,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:30,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161704626] [2024-10-24 23:38:30,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:30,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:30,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161704626] [2024-10-24 23:38:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161704626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:30,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:30,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:30,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870958880] [2024-10-24 23:38:30,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:30,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:30,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:30,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:30,909 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-10-24 23:38:30,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 97 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 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) [2024-10-24 23:38:30,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:30,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-10-24 23:38:30,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:32,315 INFO L124 PetriNetUnfolderBase]: 16574/26850 cut-off events. [2024-10-24 23:38:32,316 INFO L125 PetriNetUnfolderBase]: For 7087/7493 co-relation queries the response was YES. [2024-10-24 23:38:32,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53647 conditions, 26850 events. 16574/26850 cut-off events. For 7087/7493 co-relation queries the response was YES. Maximal size of possible extension queue 1576. Compared 231695 event pairs, 6768 based on Foata normal form. 1002/23709 useless extension candidates. Maximal degree in co-relation 33520. Up to 12388 conditions per place. [2024-10-24 23:38:32,473 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 102 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-10-24 23:38:32,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 154 transitions, 610 flow [2024-10-24 23:38:32,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:32,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:32,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 332 transitions. [2024-10-24 23:38:32,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757009345794392 [2024-10-24 23:38:32,475 INFO L175 Difference]: Start difference. First operand has 91 places, 97 transitions, 232 flow. Second operand 4 states and 332 transitions. [2024-10-24 23:38:32,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 154 transitions, 610 flow [2024-10-24 23:38:32,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 154 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:32,506 INFO L231 Difference]: Finished difference. Result has 94 places, 99 transitions, 260 flow [2024-10-24 23:38:32,506 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=94, PETRI_TRANSITIONS=99} [2024-10-24 23:38:32,507 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 0 predicate places. [2024-10-24 23:38:32,507 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 99 transitions, 260 flow [2024-10-24 23:38:32,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 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) [2024-10-24 23:38:32,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:32,508 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:32,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 23:38:32,508 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:32,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1468637010, now seen corresponding path program 1 times [2024-10-24 23:38:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326859717] [2024-10-24 23:38:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:32,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:32,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:32,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:32,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326859717] [2024-10-24 23:38:32,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326859717] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:32,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:32,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:32,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316452842] [2024-10-24 23:38:32,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:32,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:32,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:32,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:32,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:32,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-10-24 23:38:32,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 99 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:32,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:32,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-10-24 23:38:32,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:34,318 INFO L124 PetriNetUnfolderBase]: 16506/26289 cut-off events. [2024-10-24 23:38:34,318 INFO L125 PetriNetUnfolderBase]: For 8983/9543 co-relation queries the response was YES. [2024-10-24 23:38:34,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56390 conditions, 26289 events. 16506/26289 cut-off events. For 8983/9543 co-relation queries the response was YES. Maximal size of possible extension queue 1603. Compared 223290 event pairs, 4053 based on Foata normal form. 914/24794 useless extension candidates. Maximal degree in co-relation 36765. Up to 7565 conditions per place. [2024-10-24 23:38:34,552 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 128 selfloop transitions, 9 changer transitions 0/186 dead transitions. [2024-10-24 23:38:34,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 186 transitions, 771 flow [2024-10-24 23:38:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:38:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:38:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2024-10-24 23:38:34,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7133956386292835 [2024-10-24 23:38:34,554 INFO L175 Difference]: Start difference. First operand has 94 places, 99 transitions, 260 flow. Second operand 6 states and 458 transitions. [2024-10-24 23:38:34,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 186 transitions, 771 flow [2024-10-24 23:38:34,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 186 transitions, 771 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 23:38:34,662 INFO L231 Difference]: Finished difference. Result has 99 places, 99 transitions, 285 flow [2024-10-24 23:38:34,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=99, PETRI_TRANSITIONS=99} [2024-10-24 23:38:34,663 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2024-10-24 23:38:34,663 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 99 transitions, 285 flow [2024-10-24 23:38:34,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:34,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:34,663 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:34,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 23:38:34,664 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:34,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:34,664 INFO L85 PathProgramCache]: Analyzing trace with hash 784010829, now seen corresponding path program 1 times [2024-10-24 23:38:34,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:34,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611846394] [2024-10-24 23:38:34,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:34,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:34,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611846394] [2024-10-24 23:38:34,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611846394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:34,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:34,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:34,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394094151] [2024-10-24 23:38:34,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:34,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:34,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:34,750 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-10-24 23:38:34,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 99 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:34,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:34,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-10-24 23:38:34,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:36,982 INFO L124 PetriNetUnfolderBase]: 16748/30640 cut-off events. [2024-10-24 23:38:36,983 INFO L125 PetriNetUnfolderBase]: For 21678/23450 co-relation queries the response was YES. [2024-10-24 23:38:37,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65304 conditions, 30640 events. 16748/30640 cut-off events. For 21678/23450 co-relation queries the response was YES. Maximal size of possible extension queue 1732. Compared 301715 event pairs, 8142 based on Foata normal form. 1343/27479 useless extension candidates. Maximal degree in co-relation 42967. Up to 14288 conditions per place. [2024-10-24 23:38:37,170 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 111 selfloop transitions, 5 changer transitions 0/165 dead transitions. [2024-10-24 23:38:37,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 165 transitions, 761 flow [2024-10-24 23:38:37,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 330 transitions. [2024-10-24 23:38:37,172 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710280373831776 [2024-10-24 23:38:37,172 INFO L175 Difference]: Start difference. First operand has 99 places, 99 transitions, 285 flow. Second operand 4 states and 330 transitions. [2024-10-24 23:38:37,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 165 transitions, 761 flow [2024-10-24 23:38:37,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 165 transitions, 730 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:38:37,270 INFO L231 Difference]: Finished difference. Result has 100 places, 101 transitions, 299 flow [2024-10-24 23:38:37,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=299, PETRI_PLACES=100, PETRI_TRANSITIONS=101} [2024-10-24 23:38:37,271 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 6 predicate places. [2024-10-24 23:38:37,271 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 101 transitions, 299 flow [2024-10-24 23:38:37,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:37,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:37,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:37,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 23:38:37,272 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:37,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:37,273 INFO L85 PathProgramCache]: Analyzing trace with hash 784009804, now seen corresponding path program 1 times [2024-10-24 23:38:37,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674264657] [2024-10-24 23:38:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:37,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:37,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674264657] [2024-10-24 23:38:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674264657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:37,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271651494] [2024-10-24 23:38:37,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:37,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:37,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:37,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:37,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:37,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-10-24 23:38:37,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 101 transitions, 299 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:37,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:37,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-10-24 23:38:37,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:39,119 INFO L124 PetriNetUnfolderBase]: 19838/32347 cut-off events. [2024-10-24 23:38:39,119 INFO L125 PetriNetUnfolderBase]: For 20977/23393 co-relation queries the response was YES. [2024-10-24 23:38:39,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75091 conditions, 32347 events. 19838/32347 cut-off events. For 20977/23393 co-relation queries the response was YES. Maximal size of possible extension queue 1879. Compared 286742 event pairs, 4725 based on Foata normal form. 1724/31881 useless extension candidates. Maximal degree in co-relation 50276. Up to 13444 conditions per place. [2024-10-24 23:38:39,387 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 110 selfloop transitions, 6 changer transitions 0/163 dead transitions. [2024-10-24 23:38:39,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 163 transitions, 749 flow [2024-10-24 23:38:39,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:39,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:39,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 390 transitions. [2024-10-24 23:38:39,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7289719626168224 [2024-10-24 23:38:39,389 INFO L175 Difference]: Start difference. First operand has 100 places, 101 transitions, 299 flow. Second operand 5 states and 390 transitions. [2024-10-24 23:38:39,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 163 transitions, 749 flow [2024-10-24 23:38:39,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 163 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:38:39,589 INFO L231 Difference]: Finished difference. Result has 103 places, 101 transitions, 313 flow [2024-10-24 23:38:39,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=313, PETRI_PLACES=103, PETRI_TRANSITIONS=101} [2024-10-24 23:38:39,590 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-10-24 23:38:39,590 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 101 transitions, 313 flow [2024-10-24 23:38:39,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:39,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:39,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:39,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 23:38:39,591 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:39,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:39,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1399967090, now seen corresponding path program 1 times [2024-10-24 23:38:39,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:39,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373478951] [2024-10-24 23:38:39,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:39,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:39,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:39,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373478951] [2024-10-24 23:38:39,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373478951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:39,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:39,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:39,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371839881] [2024-10-24 23:38:39,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:39,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:39,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:39,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:39,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:39,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 107 [2024-10-24 23:38:39,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 101 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:39,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:39,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 107 [2024-10-24 23:38:39,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:41,092 INFO L124 PetriNetUnfolderBase]: 15298/28335 cut-off events. [2024-10-24 23:38:41,092 INFO L125 PetriNetUnfolderBase]: For 21353/23032 co-relation queries the response was YES. [2024-10-24 23:38:41,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64206 conditions, 28335 events. 15298/28335 cut-off events. For 21353/23032 co-relation queries the response was YES. Maximal size of possible extension queue 1542. Compared 279083 event pairs, 5190 based on Foata normal form. 1293/26842 useless extension candidates. Maximal degree in co-relation 44615. Up to 9851 conditions per place. [2024-10-24 23:38:41,418 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 78 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2024-10-24 23:38:41,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 131 transitions, 593 flow [2024-10-24 23:38:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:41,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:41,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 309 transitions. [2024-10-24 23:38:41,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7219626168224299 [2024-10-24 23:38:41,419 INFO L175 Difference]: Start difference. First operand has 103 places, 101 transitions, 313 flow. Second operand 4 states and 309 transitions. [2024-10-24 23:38:41,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 131 transitions, 593 flow [2024-10-24 23:38:41,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 131 transitions, 578 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 23:38:41,640 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 310 flow [2024-10-24 23:38:41,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2024-10-24 23:38:41,640 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 8 predicate places. [2024-10-24 23:38:41,640 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 310 flow [2024-10-24 23:38:41,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:41,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:41,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:41,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 23:38:41,641 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:41,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:41,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1630756460, now seen corresponding path program 1 times [2024-10-24 23:38:41,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:41,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060785463] [2024-10-24 23:38:41,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:41,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:41,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:41,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060785463] [2024-10-24 23:38:41,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060785463] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:41,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:41,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:41,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780558354] [2024-10-24 23:38:41,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:41,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:41,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:41,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:41,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:41,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-10-24 23:38:41,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 100 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:41,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:41,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-10-24 23:38:41,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:43,829 INFO L124 PetriNetUnfolderBase]: 19843/32597 cut-off events. [2024-10-24 23:38:43,830 INFO L125 PetriNetUnfolderBase]: For 26193/27633 co-relation queries the response was YES. [2024-10-24 23:38:43,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77377 conditions, 32597 events. 19843/32597 cut-off events. For 26193/27633 co-relation queries the response was YES. Maximal size of possible extension queue 1760. Compared 290948 event pairs, 8135 based on Foata normal form. 1493/31258 useless extension candidates. Maximal degree in co-relation 53723. Up to 14944 conditions per place. [2024-10-24 23:38:44,120 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 112 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2024-10-24 23:38:44,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 164 transitions, 769 flow [2024-10-24 23:38:44,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:44,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2024-10-24 23:38:44,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686915887850467 [2024-10-24 23:38:44,122 INFO L175 Difference]: Start difference. First operand has 102 places, 100 transitions, 310 flow. Second operand 4 states and 329 transitions. [2024-10-24 23:38:44,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 164 transitions, 769 flow [2024-10-24 23:38:44,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 164 transitions, 746 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:38:44,207 INFO L231 Difference]: Finished difference. Result has 101 places, 100 transitions, 312 flow [2024-10-24 23:38:44,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=101, PETRI_TRANSITIONS=100} [2024-10-24 23:38:44,208 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 7 predicate places. [2024-10-24 23:38:44,208 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 100 transitions, 312 flow [2024-10-24 23:38:44,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:44,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:44,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:44,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 23:38:44,209 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:44,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1465499025, now seen corresponding path program 1 times [2024-10-24 23:38:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:44,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095239225] [2024-10-24 23:38:44,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:44,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:44,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095239225] [2024-10-24 23:38:44,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095239225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:44,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:44,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:44,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306750783] [2024-10-24 23:38:44,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:44,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:44,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:44,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:44,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:44,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-10-24 23:38:44,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:44,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:44,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-10-24 23:38:44,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:46,848 INFO L124 PetriNetUnfolderBase]: 21238/34068 cut-off events. [2024-10-24 23:38:46,848 INFO L125 PetriNetUnfolderBase]: For 31506/33641 co-relation queries the response was YES. [2024-10-24 23:38:47,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83982 conditions, 34068 events. 21238/34068 cut-off events. For 31506/33641 co-relation queries the response was YES. Maximal size of possible extension queue 1910. Compared 297329 event pairs, 5085 based on Foata normal form. 2581/34291 useless extension candidates. Maximal degree in co-relation 68089. Up to 9331 conditions per place. [2024-10-24 23:38:47,160 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 142 selfloop transitions, 9 changer transitions 0/196 dead transitions. [2024-10-24 23:38:47,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 196 transitions, 980 flow [2024-10-24 23:38:47,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:38:47,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:38:47,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2024-10-24 23:38:47,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7087227414330218 [2024-10-24 23:38:47,162 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 312 flow. Second operand 6 states and 455 transitions. [2024-10-24 23:38:47,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 196 transitions, 980 flow [2024-10-24 23:38:47,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 196 transitions, 964 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 23:38:47,356 INFO L231 Difference]: Finished difference. Result has 105 places, 100 transitions, 333 flow [2024-10-24 23:38:47,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=105, PETRI_TRANSITIONS=100} [2024-10-24 23:38:47,357 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2024-10-24 23:38:47,357 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 100 transitions, 333 flow [2024-10-24 23:38:47,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:47,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:47,358 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:47,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 23:38:47,358 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:47,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:47,358 INFO L85 PathProgramCache]: Analyzing trace with hash 449275907, now seen corresponding path program 1 times [2024-10-24 23:38:47,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:47,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066504896] [2024-10-24 23:38:47,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:47,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:47,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:47,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066504896] [2024-10-24 23:38:47,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066504896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:47,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:47,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 23:38:47,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581384546] [2024-10-24 23:38:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:47,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:47,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:47,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:47,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 107 [2024-10-24 23:38:47,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 100 transitions, 333 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:47,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:47,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 107 [2024-10-24 23:38:47,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:48,897 INFO L124 PetriNetUnfolderBase]: 16382/29668 cut-off events. [2024-10-24 23:38:48,897 INFO L125 PetriNetUnfolderBase]: For 31629/33957 co-relation queries the response was YES. [2024-10-24 23:38:49,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72299 conditions, 29668 events. 16382/29668 cut-off events. For 31629/33957 co-relation queries the response was YES. Maximal size of possible extension queue 1585. Compared 286934 event pairs, 5615 based on Foata normal form. 2300/29141 useless extension candidates. Maximal degree in co-relation 59352. Up to 10934 conditions per place. [2024-10-24 23:38:49,213 INFO L140 encePairwiseOnDemand]: 103/107 looper letters, 83 selfloop transitions, 4 changer transitions 0/132 dead transitions. [2024-10-24 23:38:49,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 132 transitions, 643 flow [2024-10-24 23:38:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:49,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-10-24 23:38:49,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7126168224299065 [2024-10-24 23:38:49,215 INFO L175 Difference]: Start difference. First operand has 105 places, 100 transitions, 333 flow. Second operand 4 states and 305 transitions. [2024-10-24 23:38:49,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 132 transitions, 643 flow [2024-10-24 23:38:49,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 132 transitions, 621 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:38:49,395 INFO L231 Difference]: Finished difference. Result has 103 places, 99 transitions, 324 flow [2024-10-24 23:38:49,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=103, PETRI_TRANSITIONS=99} [2024-10-24 23:38:49,396 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 9 predicate places. [2024-10-24 23:38:49,396 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 99 transitions, 324 flow [2024-10-24 23:38:49,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:49,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:49,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:49,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 23:38:49,398 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:49,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1533478894, now seen corresponding path program 1 times [2024-10-24 23:38:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:49,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425118824] [2024-10-24 23:38:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:49,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:49,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:49,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:49,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425118824] [2024-10-24 23:38:49,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425118824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:49,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:49,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:38:49,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366721678] [2024-10-24 23:38:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:49,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:49,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:49,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:49,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:49,500 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-10-24 23:38:49,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 99 transitions, 324 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:49,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:49,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-10-24 23:38:49,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:51,485 INFO L124 PetriNetUnfolderBase]: 20831/33365 cut-off events. [2024-10-24 23:38:51,485 INFO L125 PetriNetUnfolderBase]: For 30395/32085 co-relation queries the response was YES. [2024-10-24 23:38:51,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84644 conditions, 33365 events. 20831/33365 cut-off events. For 30395/32085 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 288562 event pairs, 8769 based on Foata normal form. 2095/33052 useless extension candidates. Maximal degree in co-relation 68875. Up to 15735 conditions per place. [2024-10-24 23:38:51,824 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 177 selfloop transitions, 8 changer transitions 0/227 dead transitions. [2024-10-24 23:38:51,824 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 227 transitions, 1186 flow [2024-10-24 23:38:51,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:38:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:38:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 486 transitions. [2024-10-24 23:38:51,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7570093457943925 [2024-10-24 23:38:51,826 INFO L175 Difference]: Start difference. First operand has 103 places, 99 transitions, 324 flow. Second operand 6 states and 486 transitions. [2024-10-24 23:38:51,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 227 transitions, 1186 flow [2024-10-24 23:38:52,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 227 transitions, 1149 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-24 23:38:52,095 INFO L231 Difference]: Finished difference. Result has 105 places, 99 transitions, 334 flow [2024-10-24 23:38:52,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=105, PETRI_TRANSITIONS=99} [2024-10-24 23:38:52,096 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2024-10-24 23:38:52,096 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 99 transitions, 334 flow [2024-10-24 23:38:52,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:52,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:52,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:52,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 23:38:52,097 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:52,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1042651060, now seen corresponding path program 1 times [2024-10-24 23:38:52,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:52,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039392512] [2024-10-24 23:38:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:52,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:52,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039392512] [2024-10-24 23:38:52,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039392512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:52,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:52,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:52,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366693172] [2024-10-24 23:38:52,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:52,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:52,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:52,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:52,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:52,190 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 107 [2024-10-24 23:38:52,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 99 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:52,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:52,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 107 [2024-10-24 23:38:52,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:53,990 INFO L124 PetriNetUnfolderBase]: 21212/33178 cut-off events. [2024-10-24 23:38:53,990 INFO L125 PetriNetUnfolderBase]: For 42460/45193 co-relation queries the response was YES. [2024-10-24 23:38:54,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86176 conditions, 33178 events. 21212/33178 cut-off events. For 42460/45193 co-relation queries the response was YES. Maximal size of possible extension queue 1821. Compared 278513 event pairs, 5615 based on Foata normal form. 2733/33840 useless extension candidates. Maximal degree in co-relation 70314. Up to 13203 conditions per place. [2024-10-24 23:38:54,328 INFO L140 encePairwiseOnDemand]: 101/107 looper letters, 116 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2024-10-24 23:38:54,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 164 transitions, 860 flow [2024-10-24 23:38:54,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 23:38:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 23:38:54,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 388 transitions. [2024-10-24 23:38:54,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7252336448598131 [2024-10-24 23:38:54,329 INFO L175 Difference]: Start difference. First operand has 105 places, 99 transitions, 334 flow. Second operand 5 states and 388 transitions. [2024-10-24 23:38:54,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 164 transitions, 860 flow [2024-10-24 23:38:54,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 164 transitions, 835 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:54,537 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 335 flow [2024-10-24 23:38:54,538 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=335, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2024-10-24 23:38:54,538 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2024-10-24 23:38:54,538 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 335 flow [2024-10-24 23:38:54,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.2) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:54,539 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:54,539 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:54,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 23:38:54,539 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:54,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1042652085, now seen corresponding path program 1 times [2024-10-24 23:38:54,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:54,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618038397] [2024-10-24 23:38:54,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:54,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:54,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:54,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:54,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618038397] [2024-10-24 23:38:54,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618038397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:54,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:54,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 23:38:54,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504220761] [2024-10-24 23:38:54,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:54,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 23:38:54,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:54,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 23:38:54,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 23:38:54,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 107 [2024-10-24 23:38:54,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 335 flow. Second operand has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:54,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:54,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 107 [2024-10-24 23:38:54,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:56,469 INFO L124 PetriNetUnfolderBase]: 17693/29827 cut-off events. [2024-10-24 23:38:56,469 INFO L125 PetriNetUnfolderBase]: For 37989/40176 co-relation queries the response was YES. [2024-10-24 23:38:56,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74952 conditions, 29827 events. 17693/29827 cut-off events. For 37989/40176 co-relation queries the response was YES. Maximal size of possible extension queue 1660. Compared 270414 event pairs, 9143 based on Foata normal form. 2565/30317 useless extension candidates. Maximal degree in co-relation 61134. Up to 15891 conditions per place. [2024-10-24 23:38:56,673 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 118 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2024-10-24 23:38:56,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 164 transitions, 843 flow [2024-10-24 23:38:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 23:38:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 23:38:56,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 327 transitions. [2024-10-24 23:38:56,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.764018691588785 [2024-10-24 23:38:56,675 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 335 flow. Second operand 4 states and 327 transitions. [2024-10-24 23:38:56,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 164 transitions, 843 flow [2024-10-24 23:38:56,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 164 transitions, 831 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 23:38:56,780 INFO L231 Difference]: Finished difference. Result has 105 places, 97 transitions, 325 flow [2024-10-24 23:38:56,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=325, PETRI_PLACES=105, PETRI_TRANSITIONS=97} [2024-10-24 23:38:56,781 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 11 predicate places. [2024-10-24 23:38:56,781 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 97 transitions, 325 flow [2024-10-24 23:38:56,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.5) internal successors, (238), 4 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:56,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:56,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:56,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 23:38:56,782 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:56,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:56,782 INFO L85 PathProgramCache]: Analyzing trace with hash -2037554650, now seen corresponding path program 1 times [2024-10-24 23:38:56,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:56,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534863054] [2024-10-24 23:38:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:56,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:56,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:56,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:56,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534863054] [2024-10-24 23:38:56,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534863054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:56,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:56,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 23:38:56,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772565458] [2024-10-24 23:38:56,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:56,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 23:38:56,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:56,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 23:38:56,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 23:38:56,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-10-24 23:38:56,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 97 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:56,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:56,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-10-24 23:38:56,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:38:58,744 INFO L124 PetriNetUnfolderBase]: 20834/32422 cut-off events. [2024-10-24 23:38:58,745 INFO L125 PetriNetUnfolderBase]: For 40978/43711 co-relation queries the response was YES. [2024-10-24 23:38:58,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83597 conditions, 32422 events. 20834/32422 cut-off events. For 40978/43711 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 270669 event pairs, 5615 based on Foata normal form. 3489/33840 useless extension candidates. Maximal degree in co-relation 68092. Up to 10190 conditions per place. [2024-10-24 23:38:58,982 INFO L140 encePairwiseOnDemand]: 99/107 looper letters, 146 selfloop transitions, 9 changer transitions 0/196 dead transitions. [2024-10-24 23:38:58,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 196 transitions, 1037 flow [2024-10-24 23:38:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:38:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:38:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 452 transitions. [2024-10-24 23:38:58,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040498442367601 [2024-10-24 23:38:58,984 INFO L175 Difference]: Start difference. First operand has 105 places, 97 transitions, 325 flow. Second operand 6 states and 452 transitions. [2024-10-24 23:38:58,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 196 transitions, 1037 flow [2024-10-24 23:38:59,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 196 transitions, 1031 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 23:38:59,120 INFO L231 Difference]: Finished difference. Result has 108 places, 97 transitions, 344 flow [2024-10-24 23:38:59,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=108, PETRI_TRANSITIONS=97} [2024-10-24 23:38:59,120 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 14 predicate places. [2024-10-24 23:38:59,121 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 97 transitions, 344 flow [2024-10-24 23:38:59,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:59,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 23:38:59,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:38:59,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 23:38:59,121 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-24 23:38:59,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:38:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2087334054, now seen corresponding path program 1 times [2024-10-24 23:38:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:38:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241671610] [2024-10-24 23:38:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:38:59,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:38:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 23:38:59,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 23:38:59,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 23:38:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241671610] [2024-10-24 23:38:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241671610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 23:38:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 23:38:59,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 23:38:59,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482829665] [2024-10-24 23:38:59,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 23:38:59,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 23:38:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 23:38:59,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 23:38:59,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 23:38:59,216 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 107 [2024-10-24 23:38:59,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 97 transitions, 344 flow. Second operand has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:38:59,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 23:38:59,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 107 [2024-10-24 23:38:59,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 23:39:01,054 INFO L124 PetriNetUnfolderBase]: 20834/31454 cut-off events. [2024-10-24 23:39:01,054 INFO L125 PetriNetUnfolderBase]: For 45669/48351 co-relation queries the response was YES. [2024-10-24 23:39:01,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86131 conditions, 31454 events. 20834/31454 cut-off events. For 45669/48351 co-relation queries the response was YES. Maximal size of possible extension queue 1764. Compared 252581 event pairs, 9143 based on Foata normal form. 3060/33193 useless extension candidates. Maximal degree in co-relation 70213. Up to 16269 conditions per place. [2024-10-24 23:39:01,266 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 0 selfloop transitions, 0 changer transitions 230/230 dead transitions. [2024-10-24 23:39:01,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 230 transitions, 1264 flow [2024-10-24 23:39:01,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 23:39:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 23:39:01,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 482 transitions. [2024-10-24 23:39:01,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7507788161993769 [2024-10-24 23:39:01,268 INFO L175 Difference]: Start difference. First operand has 108 places, 97 transitions, 344 flow. Second operand 6 states and 482 transitions. [2024-10-24 23:39:01,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 230 transitions, 1264 flow [2024-10-24 23:39:01,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 230 transitions, 1246 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-24 23:39:01,609 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2024-10-24 23:39:01,610 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2024-10-24 23:39:01,610 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, 13 predicate places. [2024-10-24 23:39:01,610 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2024-10-24 23:39:01,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.4) internal successors, (287), 5 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 23:39:01,613 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-10-24 23:39:01,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-10-24 23:39:01,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-10-24 23:39:01,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-10-24 23:39:01,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-10-24 23:39:01,614 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-10-24 23:39:01,615 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-10-24 23:39:01,616 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-10-24 23:39:01,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-10-24 23:39:01,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-10-24 23:39:01,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-10-24 23:39:01,617 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-10-24 23:39:01,618 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-10-24 23:39:01,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-10-24 23:39:01,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-10-24 23:39:01,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-10-24 23:39:01,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-10-24 23:39:01,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-10-24 23:39:01,619 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-10-24 23:39:01,620 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-10-24 23:39:01,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 23:39:01,620 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 23:39:01,626 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 23:39:01,626 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 23:39:01,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:39:01 BasicIcfg [2024-10-24 23:39:01,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 23:39:01,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:39:01,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:39:01,633 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:39:01,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:38:17" (3/4) ... [2024-10-24 23:39:01,635 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 23:39:01,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-24 23:39:01,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-24 23:39:01,638 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-24 23:39:01,645 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2024-10-24 23:39:01,645 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-24 23:39:01,646 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-24 23:39:01,646 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 23:39:01,748 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:39:01,749 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 23:39:01,749 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:39:01,749 INFO L158 Benchmark]: Toolchain (without parser) took 46169.10ms. Allocated memory was 163.6MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 93.4MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-10-24 23:39:01,750 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 109.1MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:39:01,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.50ms. Allocated memory is still 163.6MB. Free memory was 93.3MB in the beginning and 128.2MB in the end (delta: -34.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-10-24 23:39:01,750 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.94ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 125.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:39:01,750 INFO L158 Benchmark]: Boogie Preprocessor took 63.43ms. Allocated memory is still 163.6MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:39:01,750 INFO L158 Benchmark]: RCFGBuilder took 1007.14ms. Allocated memory is still 163.6MB. Free memory was 123.1MB in the beginning and 59.0MB in the end (delta: 64.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-10-24 23:39:01,751 INFO L158 Benchmark]: TraceAbstraction took 44565.97ms. Allocated memory was 163.6MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 58.4MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-10-24 23:39:01,751 INFO L158 Benchmark]: Witness Printer took 115.97ms. Allocated memory is still 7.0GB. Free memory was 5.3GB in the beginning and 5.3GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 23:39:01,753 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 109.1MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.50ms. Allocated memory is still 163.6MB. Free memory was 93.3MB in the beginning and 128.2MB in the end (delta: -34.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.94ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 125.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.43ms. Allocated memory is still 163.6MB. Free memory was 125.5MB in the beginning and 123.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1007.14ms. Allocated memory is still 163.6MB. Free memory was 123.1MB in the beginning and 59.0MB in the end (delta: 64.1MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 44565.97ms. Allocated memory was 163.6MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 58.4MB in the beginning and 5.3GB in the end (delta: -5.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * Witness Printer took 115.97ms. Allocated memory is still 7.0GB. Free memory was 5.3GB in the beginning and 5.3GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 171 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 44.4s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2249 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1939 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 103 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4497 IncrementalHoareTripleChecker+Invalid, 4600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 103 mSolverCounterUnsat, 142 mSDtfsCounter, 4497 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=344occurred 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, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 272 NumberOfCodeBlocks, 272 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 819 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 23:39:01,782 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