./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:09:24,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:09:24,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:09:24,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:09:24,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:09:24,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:09:24,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:09:24,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:09:24,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:09:24,336 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:09:24,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:09:24,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:09:24,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:09:24,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:09:24,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:09:24,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:09:24,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:09:24,339 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:09:24,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:09:24,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:09:24,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:09:24,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:09:24,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:09:24,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:09:24,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:09:24,344 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:09:24,344 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:09:24,345 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:09:24,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:09:24,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:09:24,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:09:24,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:09:24,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:09:24,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:09:24,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:09:24,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:09:24,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:09:24,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:09:24,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:09:24,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:09:24,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:09:24,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:09:24,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:09:24,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:09:24,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2024-11-09 15:09:24,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:09:24,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:09:24,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:09:24,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:09:24,597 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:09:24,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-11-09 15:09:25,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:09:26,084 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:09:26,085 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-11-09 15:09:26,095 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee6ffbc9/732c272db7da46529555f4c62e02eb9a/FLAGe4522af79 [2024-11-09 15:09:26,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ee6ffbc9/732c272db7da46529555f4c62e02eb9a [2024-11-09 15:09:26,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:09:26,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:09:26,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:09:26,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:09:26,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:09:26,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e16bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26, skipping insertion in model container [2024-11-09 15:09:26,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,540 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:09:26,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:09:26,709 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:09:26,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:09:26,742 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:09:26,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26 WrapperNode [2024-11-09 15:09:26,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:09:26,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:09:26,745 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:09:26,745 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:09:26,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,777 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 197 [2024-11-09 15:09:26,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:09:26,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:09:26,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:09:26,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:09:26,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,789 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,802 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]. [2024-11-09 15:09:26,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,802 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,808 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,809 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:09:26,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:09:26,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:09:26,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:09:26,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (1/1) ... [2024-11-09 15:09:26,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:09:26,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:09:26,843 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) [2024-11-09 15:09:26,847 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 [2024-11-09 15:09:26,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 15:09:26,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 15:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 15:09:26,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 15:09:26,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 15:09:26,890 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 15:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:09:26,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:09:26,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:09:26,893 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:09:26,975 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:09:26,976 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:09:27,276 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:09:27,277 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:09:27,452 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:09:27,453 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 15:09:27,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:09:27 BoogieIcfgContainer [2024-11-09 15:09:27,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:09:27,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:09:27,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:09:27,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:09:27,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:09:26" (1/3) ... [2024-11-09 15:09:27,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e02f31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:09:27, skipping insertion in model container [2024-11-09 15:09:27,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:09:26" (2/3) ... [2024-11-09 15:09:27,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e02f31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:09:27, skipping insertion in model container [2024-11-09 15:09:27,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:09:27" (3/3) ... [2024-11-09 15:09:27,463 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2024-11-09 15:09:27,478 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:09:27,479 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-09 15:09:27,479 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:09:27,549 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 15:09:27,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 199 flow [2024-11-09 15:09:27,624 INFO L124 PetriNetUnfolderBase]: 12/86 cut-off events. [2024-11-09 15:09:27,624 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 15:09:27,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 12/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 313 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-11-09 15:09:27,629 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 89 transitions, 199 flow [2024-11-09 15:09:27,633 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 84 transitions, 183 flow [2024-11-09 15:09:27,639 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:09:27,645 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;@6c55b23f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:09:27,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-09 15:09:27,651 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:09:27,652 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-09 15:09:27,652 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:09:27,652 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:27,652 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:27,652 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:27,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:27,658 INFO L85 PathProgramCache]: Analyzing trace with hash -629453063, now seen corresponding path program 1 times [2024-11-09 15:09:27,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:27,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632148749] [2024-11-09 15:09:27,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:27,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:27,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:27,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:27,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632148749] [2024-11-09 15:09:27,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632148749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:27,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:27,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:27,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495563560] [2024-11-09 15:09:27,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:27,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:27,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:27,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:28,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:28,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:28,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:28,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:28,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:29,225 INFO L124 PetriNetUnfolderBase]: 8633/13840 cut-off events. [2024-11-09 15:09:29,225 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2024-11-09 15:09:29,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25678 conditions, 13840 events. 8633/13840 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 105712 event pairs, 2832 based on Foata normal form. 364/11549 useless extension candidates. Maximal degree in co-relation 24979. Up to 5668 conditions per place. [2024-11-09 15:09:29,347 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 86 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2024-11-09 15:09:29,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 475 flow [2024-11-09 15:09:29,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:29,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-11-09 15:09:29,358 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2024-11-09 15:09:29,359 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 183 flow. Second operand 4 states and 274 transitions. [2024-11-09 15:09:29,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 475 flow [2024-11-09 15:09:29,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 133 transitions, 460 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 15:09:29,375 INFO L231 Difference]: Finished difference. Result has 82 places, 86 transitions, 208 flow [2024-11-09 15:09:29,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2024-11-09 15:09:29,379 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-11-09 15:09:29,379 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 208 flow [2024-11-09 15:09:29,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:29,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:29,380 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:29,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:09:29,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:29,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:29,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1961792194, now seen corresponding path program 1 times [2024-11-09 15:09:29,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:29,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379553227] [2024-11-09 15:09:29,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:29,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:29,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379553227] [2024-11-09 15:09:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379553227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943775205] [2024-11-09 15:09:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:29,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:29,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-09 15:09:29,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:29,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:29,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-09 15:09:29,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:30,260 INFO L124 PetriNetUnfolderBase]: 6311/11503 cut-off events. [2024-11-09 15:09:30,261 INFO L125 PetriNetUnfolderBase]: For 2345/2363 co-relation queries the response was YES. [2024-11-09 15:09:30,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 11503 events. 6311/11503 cut-off events. For 2345/2363 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 97537 event pairs, 1511 based on Foata normal form. 18/9931 useless extension candidates. Maximal degree in co-relation 11989. Up to 5147 conditions per place. [2024-11-09 15:09:30,329 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 58 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-11-09 15:09:30,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 108 transitions, 379 flow [2024-11-09 15:09:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:30,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:30,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2024-11-09 15:09:30,331 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2024-11-09 15:09:30,331 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 208 flow. Second operand 4 states and 253 transitions. [2024-11-09 15:09:30,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 108 transitions, 379 flow [2024-11-09 15:09:30,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 108 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:09:30,429 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 214 flow [2024-11-09 15:09:30,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2024-11-09 15:09:30,429 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2024-11-09 15:09:30,430 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 214 flow [2024-11-09 15:09:30,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:30,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:30,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:30,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:09:30,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:30,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1652510514, now seen corresponding path program 1 times [2024-11-09 15:09:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:30,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21634859] [2024-11-09 15:09:30,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:30,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:30,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:30,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21634859] [2024-11-09 15:09:30,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21634859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:30,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:30,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:30,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763188616] [2024-11-09 15:09:30,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:30,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:30,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:30,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:30,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:30,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:30,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2024-11-09 15:09:30,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:30,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:30,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:31,855 INFO L124 PetriNetUnfolderBase]: 10606/17820 cut-off events. [2024-11-09 15:09:31,855 INFO L125 PetriNetUnfolderBase]: For 6332/6941 co-relation queries the response was YES. [2024-11-09 15:09:31,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36166 conditions, 17820 events. 10606/17820 cut-off events. For 6332/6941 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 147793 event pairs, 3534 based on Foata normal form. 763/15551 useless extension candidates. Maximal degree in co-relation 20800. Up to 6926 conditions per place. [2024-11-09 15:09:31,948 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 90 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-11-09 15:09:31,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 560 flow [2024-11-09 15:09:31,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:31,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-11-09 15:09:31,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7640449438202247 [2024-11-09 15:09:31,953 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 214 flow. Second operand 4 states and 272 transitions. [2024-11-09 15:09:31,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 560 flow [2024-11-09 15:09:31,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 540 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:31,998 INFO L231 Difference]: Finished difference. Result has 86 places, 87 transitions, 240 flow [2024-11-09 15:09:31,998 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=86, PETRI_TRANSITIONS=87} [2024-11-09 15:09:31,999 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2024-11-09 15:09:32,000 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 87 transitions, 240 flow [2024-11-09 15:09:32,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2024-11-09 15:09:32,000 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:32,000 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:32,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:09:32,000 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:32,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash 685984765, now seen corresponding path program 1 times [2024-11-09 15:09:32,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:32,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648195956] [2024-11-09 15:09:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:32,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:32,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648195956] [2024-11-09 15:09:32,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648195956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:32,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:32,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:32,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730975525] [2024-11-09 15:09:32,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:32,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:32,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:32,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:32,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:32,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-09 15:09:32,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 87 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:32,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:32,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-09 15:09:32,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:32,939 INFO L124 PetriNetUnfolderBase]: 7663/14327 cut-off events. [2024-11-09 15:09:32,940 INFO L125 PetriNetUnfolderBase]: For 6263/6708 co-relation queries the response was YES. [2024-11-09 15:09:32,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29869 conditions, 14327 events. 7663/14327 cut-off events. For 6263/6708 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 128416 event pairs, 1873 based on Foata normal form. 455/13012 useless extension candidates. Maximal degree in co-relation 17251. Up to 6429 conditions per place. [2024-11-09 15:09:32,995 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 63 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2024-11-09 15:09:32,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 111 transitions, 441 flow [2024-11-09 15:09:32,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-11-09 15:09:32,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.699438202247191 [2024-11-09 15:09:32,996 INFO L175 Difference]: Start difference. First operand has 86 places, 87 transitions, 240 flow. Second operand 4 states and 249 transitions. [2024-11-09 15:09:32,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 111 transitions, 441 flow [2024-11-09 15:09:33,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 111 transitions, 441 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:09:33,022 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 244 flow [2024-11-09 15:09:33,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-11-09 15:09:33,023 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2024-11-09 15:09:33,023 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 244 flow [2024-11-09 15:09:33,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:33,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:33,024 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:33,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:09:33,024 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:33,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:33,024 INFO L85 PathProgramCache]: Analyzing trace with hash -311780926, now seen corresponding path program 1 times [2024-11-09 15:09:33,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:33,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215104277] [2024-11-09 15:09:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:33,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:33,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:33,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215104277] [2024-11-09 15:09:33,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215104277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:33,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:33,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:33,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137886144] [2024-11-09 15:09:33,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:33,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:33,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:33,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:33,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:33,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-09 15:09:33,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:33,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:33,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-09 15:09:33,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:33,917 INFO L124 PetriNetUnfolderBase]: 7682/14536 cut-off events. [2024-11-09 15:09:33,918 INFO L125 PetriNetUnfolderBase]: For 7388/7622 co-relation queries the response was YES. [2024-11-09 15:09:33,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30765 conditions, 14536 events. 7682/14536 cut-off events. For 7388/7622 co-relation queries the response was YES. Maximal size of possible extension queue 922. Compared 131896 event pairs, 1801 based on Foata normal form. 234/13015 useless extension candidates. Maximal degree in co-relation 17937. Up to 6391 conditions per place. [2024-11-09 15:09:34,014 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 61 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-09 15:09:34,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 447 flow [2024-11-09 15:09:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:34,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:34,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-11-09 15:09:34,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7078651685393258 [2024-11-09 15:09:34,016 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 244 flow. Second operand 4 states and 252 transitions. [2024-11-09 15:09:34,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 447 flow [2024-11-09 15:09:34,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 433 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:34,078 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 242 flow [2024-11-09 15:09:34,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2024-11-09 15:09:34,079 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-09 15:09:34,080 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 242 flow [2024-11-09 15:09:34,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:34,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:34,080 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:34,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 15:09:34,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:34,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:34,081 INFO L85 PathProgramCache]: Analyzing trace with hash -209308091, now seen corresponding path program 1 times [2024-11-09 15:09:34,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:34,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377326027] [2024-11-09 15:09:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:34,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:34,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:34,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377326027] [2024-11-09 15:09:34,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377326027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:34,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:34,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:34,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519957019] [2024-11-09 15:09:34,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:34,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:34,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:34,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:34,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:34,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:34,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:34,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:34,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:35,005 INFO L124 PetriNetUnfolderBase]: 8589/15779 cut-off events. [2024-11-09 15:09:35,005 INFO L125 PetriNetUnfolderBase]: For 8381/8874 co-relation queries the response was YES. [2024-11-09 15:09:35,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33466 conditions, 15779 events. 8589/15779 cut-off events. For 8381/8874 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 141525 event pairs, 3715 based on Foata normal form. 472/14104 useless extension candidates. Maximal degree in co-relation 18847. Up to 7012 conditions per place. [2024-11-09 15:09:35,089 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 90 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-11-09 15:09:35,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 135 transitions, 580 flow [2024-11-09 15:09:35,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:35,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:35,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2024-11-09 15:09:35,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7556179775280899 [2024-11-09 15:09:35,090 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 242 flow. Second operand 4 states and 269 transitions. [2024-11-09 15:09:35,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 135 transitions, 580 flow [2024-11-09 15:09:35,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 135 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:35,124 INFO L231 Difference]: Finished difference. Result has 86 places, 84 transitions, 233 flow [2024-11-09 15:09:35,124 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=86, PETRI_TRANSITIONS=84} [2024-11-09 15:09:35,125 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2024-11-09 15:09:35,125 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 84 transitions, 233 flow [2024-11-09 15:09:35,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:35,125 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:35,125 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:35,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:09:35,125 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:35,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:35,126 INFO L85 PathProgramCache]: Analyzing trace with hash -209309116, now seen corresponding path program 1 times [2024-11-09 15:09:35,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:35,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423615196] [2024-11-09 15:09:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:35,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423615196] [2024-11-09 15:09:35,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423615196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:35,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:35,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:35,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708920020] [2024-11-09 15:09:35,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:35,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:09:35,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:09:35,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:09:35,214 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-09 15:09:35,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 84 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:35,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:35,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-09 15:09:35,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:36,401 INFO L124 PetriNetUnfolderBase]: 10510/16965 cut-off events. [2024-11-09 15:09:36,402 INFO L125 PetriNetUnfolderBase]: For 5720/6344 co-relation queries the response was YES. [2024-11-09 15:09:36,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37465 conditions, 16965 events. 10510/16965 cut-off events. For 5720/6344 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 134175 event pairs, 1805 based on Foata normal form. 314/15775 useless extension candidates. Maximal degree in co-relation 21635. Up to 7845 conditions per place. [2024-11-09 15:09:36,474 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 88 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-11-09 15:09:36,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 133 transitions, 561 flow [2024-11-09 15:09:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:09:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:09:36,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2024-11-09 15:09:36,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7146067415730337 [2024-11-09 15:09:36,477 INFO L175 Difference]: Start difference. First operand has 86 places, 84 transitions, 233 flow. Second operand 5 states and 318 transitions. [2024-11-09 15:09:36,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 133 transitions, 561 flow [2024-11-09 15:09:36,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 133 transitions, 555 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:36,501 INFO L231 Difference]: Finished difference. Result has 87 places, 83 transitions, 237 flow [2024-11-09 15:09:36,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=87, PETRI_TRANSITIONS=83} [2024-11-09 15:09:36,502 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-11-09 15:09:36,502 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 83 transitions, 237 flow [2024-11-09 15:09:36,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:36,503 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:36,503 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:36,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:09:36,503 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:36,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash 297975129, now seen corresponding path program 1 times [2024-11-09 15:09:36,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:36,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059096032] [2024-11-09 15:09:36,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:36,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:36,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059096032] [2024-11-09 15:09:36,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059096032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:36,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:36,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:36,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481773570] [2024-11-09 15:09:36,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:36,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:36,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:36,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:36,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:36,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:36,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:36,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:36,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:37,481 INFO L124 PetriNetUnfolderBase]: 12659/21669 cut-off events. [2024-11-09 15:09:37,481 INFO L125 PetriNetUnfolderBase]: For 12861/13943 co-relation queries the response was YES. [2024-11-09 15:09:37,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46647 conditions, 21669 events. 12659/21669 cut-off events. For 12861/13943 co-relation queries the response was YES. Maximal size of possible extension queue 1239. Compared 189168 event pairs, 4628 based on Foata normal form. 1237/19913 useless extension candidates. Maximal degree in co-relation 26777. Up to 8789 conditions per place. [2024-11-09 15:09:37,598 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 94 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-11-09 15:09:37,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 629 flow [2024-11-09 15:09:37,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:37,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:37,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-11-09 15:09:37,599 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7584269662921348 [2024-11-09 15:09:37,600 INFO L175 Difference]: Start difference. First operand has 87 places, 83 transitions, 237 flow. Second operand 4 states and 270 transitions. [2024-11-09 15:09:37,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 136 transitions, 629 flow [2024-11-09 15:09:37,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 608 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:37,654 INFO L231 Difference]: Finished difference. Result has 89 places, 85 transitions, 262 flow [2024-11-09 15:09:37,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=89, PETRI_TRANSITIONS=85} [2024-11-09 15:09:37,655 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 7 predicate places. [2024-11-09 15:09:37,655 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 85 transitions, 262 flow [2024-11-09 15:09:37,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:37,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:37,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:37,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 15:09:37,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:37,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:37,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1075305194, now seen corresponding path program 1 times [2024-11-09 15:09:37,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:37,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546601350] [2024-11-09 15:09:37,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:37,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:37,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:37,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546601350] [2024-11-09 15:09:37,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546601350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:37,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:37,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544668616] [2024-11-09 15:09:37,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:37,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:37,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:37,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:37,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:37,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-09 15:09:37,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-09 15:09:37,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:37,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-09 15:09:37,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:38,461 INFO L124 PetriNetUnfolderBase]: 9275/17800 cut-off events. [2024-11-09 15:09:38,461 INFO L125 PetriNetUnfolderBase]: For 11232/11863 co-relation queries the response was YES. [2024-11-09 15:09:38,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38839 conditions, 17800 events. 9275/17800 cut-off events. For 11232/11863 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 168142 event pairs, 2224 based on Foata normal form. 734/16730 useless extension candidates. Maximal degree in co-relation 23961. Up to 7859 conditions per place. [2024-11-09 15:09:38,568 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 66 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-09 15:09:38,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 110 transitions, 489 flow [2024-11-09 15:09:38,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:38,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:38,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-11-09 15:09:38,569 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966292134831461 [2024-11-09 15:09:38,569 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 262 flow. Second operand 4 states and 248 transitions. [2024-11-09 15:09:38,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 110 transitions, 489 flow [2024-11-09 15:09:38,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 110 transitions, 489 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:09:38,644 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 266 flow [2024-11-09 15:09:38,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2024-11-09 15:09:38,644 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-09 15:09:38,645 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 266 flow [2024-11-09 15:09:38,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-11-09 15:09:38,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:38,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:38,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 15:09:38,645 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:38,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:38,645 INFO L85 PathProgramCache]: Analyzing trace with hash 2101352672, now seen corresponding path program 1 times [2024-11-09 15:09:38,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:38,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679696965] [2024-11-09 15:09:38,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:38,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:38,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:38,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679696965] [2024-11-09 15:09:38,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679696965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:38,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:38,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:09:38,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4093602] [2024-11-09 15:09:38,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:38,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:09:38,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:38,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:09:38,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:09:38,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-09 15:09:38,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:38,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:38,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-09 15:09:38,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:40,107 INFO L124 PetriNetUnfolderBase]: 12676/20604 cut-off events. [2024-11-09 15:09:40,108 INFO L125 PetriNetUnfolderBase]: For 15746/16711 co-relation queries the response was YES. [2024-11-09 15:09:40,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49418 conditions, 20604 events. 12676/20604 cut-off events. For 15746/16711 co-relation queries the response was YES. Maximal size of possible extension queue 1168. Compared 168898 event pairs, 2296 based on Foata normal form. 1221/20431 useless extension candidates. Maximal degree in co-relation 30295. Up to 5311 conditions per place. [2024-11-09 15:09:40,257 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 118 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-09 15:09:40,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 165 transitions, 817 flow [2024-11-09 15:09:40,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:40,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2024-11-09 15:09:40,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6891385767790262 [2024-11-09 15:09:40,259 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 266 flow. Second operand 6 states and 368 transitions. [2024-11-09 15:09:40,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 165 transitions, 817 flow [2024-11-09 15:09:40,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 791 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:40,323 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 283 flow [2024-11-09 15:09:40,324 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2024-11-09 15:09:40,324 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-11-09 15:09:40,324 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 283 flow [2024-11-09 15:09:40,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:40,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:40,325 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:40,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 15:09:40,325 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:40,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash 647295124, now seen corresponding path program 1 times [2024-11-09 15:09:40,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:40,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519412761] [2024-11-09 15:09:40,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:40,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:40,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:40,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519412761] [2024-11-09 15:09:40,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519412761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:40,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:40,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:40,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996825326] [2024-11-09 15:09:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:40,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:40,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:40,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:40,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:40,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-11-09 15:09:40,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:40,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:40,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-11-09 15:09:40,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:41,636 INFO L124 PetriNetUnfolderBase]: 9329/17938 cut-off events. [2024-11-09 15:09:41,636 INFO L125 PetriNetUnfolderBase]: For 17304/18410 co-relation queries the response was YES. [2024-11-09 15:09:41,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41641 conditions, 17938 events. 9329/17938 cut-off events. For 17304/18410 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 170328 event pairs, 2522 based on Foata normal form. 959/17172 useless extension candidates. Maximal degree in co-relation 24671. Up to 7058 conditions per place. [2024-11-09 15:09:41,800 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 66 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-09 15:09:41,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 109 transitions, 528 flow [2024-11-09 15:09:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-09 15:09:41,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-11-09 15:09:41,802 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 283 flow. Second operand 4 states and 251 transitions. [2024-11-09 15:09:41,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 109 transitions, 528 flow [2024-11-09 15:09:41,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 109 transitions, 506 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:41,901 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 276 flow [2024-11-09 15:09:41,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-11-09 15:09:41,901 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-09 15:09:41,902 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 276 flow [2024-11-09 15:09:41,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:41,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:41,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:41,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 15:09:41,902 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:41,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:41,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1025278053, now seen corresponding path program 1 times [2024-11-09 15:09:41,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:41,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621846911] [2024-11-09 15:09:41,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:41,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:41,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:41,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:41,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621846911] [2024-11-09 15:09:41,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621846911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:41,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:41,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:41,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880997347] [2024-11-09 15:09:41,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:41,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:41,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:41,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:41,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:41,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:41,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:41,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:41,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:41,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:43,282 INFO L124 PetriNetUnfolderBase]: 10491/19538 cut-off events. [2024-11-09 15:09:43,283 INFO L125 PetriNetUnfolderBase]: For 17090/18481 co-relation queries the response was YES. [2024-11-09 15:09:43,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45405 conditions, 19538 events. 10491/19538 cut-off events. For 17090/18481 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 181634 event pairs, 4640 based on Foata normal form. 1322/18808 useless extension candidates. Maximal degree in co-relation 27526. Up to 8518 conditions per place. [2024-11-09 15:09:43,436 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 97 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-09 15:09:43,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 137 transitions, 688 flow [2024-11-09 15:09:43,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:43,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-11-09 15:09:43,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-09 15:09:43,438 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 276 flow. Second operand 4 states and 267 transitions. [2024-11-09 15:09:43,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 137 transitions, 688 flow [2024-11-09 15:09:43,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 665 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:43,514 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 267 flow [2024-11-09 15:09:43,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-11-09 15:09:43,514 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2024-11-09 15:09:43,514 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 267 flow [2024-11-09 15:09:43,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:43,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:43,515 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:43,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 15:09:43,515 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:43,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1025277028, now seen corresponding path program 1 times [2024-11-09 15:09:43,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:43,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814960918] [2024-11-09 15:09:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:43,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:43,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:43,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:43,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814960918] [2024-11-09 15:09:43,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814960918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:43,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:43,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:43,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958988052] [2024-11-09 15:09:43,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:43,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:09:43,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:43,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:09:43,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:09:43,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-09 15:09:43,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:43,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:43,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-09 15:09:43,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:44,667 INFO L124 PetriNetUnfolderBase]: 12797/20792 cut-off events. [2024-11-09 15:09:44,667 INFO L125 PetriNetUnfolderBase]: For 15609/17548 co-relation queries the response was YES. [2024-11-09 15:09:44,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50905 conditions, 20792 events. 12797/20792 cut-off events. For 15609/17548 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 169158 event pairs, 2189 based on Foata normal form. 1372/20954 useless extension candidates. Maximal degree in co-relation 31234. Up to 9635 conditions per place. [2024-11-09 15:09:44,797 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 95 selfloop transitions, 6 changer transitions 0/135 dead transitions. [2024-11-09 15:09:44,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 135 transitions, 669 flow [2024-11-09 15:09:44,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:09:44,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:09:44,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 316 transitions. [2024-11-09 15:09:44,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7101123595505618 [2024-11-09 15:09:44,799 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 267 flow. Second operand 5 states and 316 transitions. [2024-11-09 15:09:44,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 135 transitions, 669 flow [2024-11-09 15:09:44,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 135 transitions, 663 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:09:44,879 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 271 flow [2024-11-09 15:09:44,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-11-09 15:09:44,880 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-09 15:09:44,880 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 271 flow [2024-11-09 15:09:44,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:44,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:44,880 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:44,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 15:09:44,881 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:44,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1664741162, now seen corresponding path program 1 times [2024-11-09 15:09:44,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:44,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655367473] [2024-11-09 15:09:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:44,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:44,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:44,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655367473] [2024-11-09 15:09:44,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655367473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:44,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:44,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:09:44,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852624131] [2024-11-09 15:09:44,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:44,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:09:44,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:44,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:09:44,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:09:44,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-09 15:09:44,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:44,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:44,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-09 15:09:44,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:45,999 INFO L124 PetriNetUnfolderBase]: 12652/20642 cut-off events. [2024-11-09 15:09:45,999 INFO L125 PetriNetUnfolderBase]: For 17164/18020 co-relation queries the response was YES. [2024-11-09 15:09:46,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 20642 events. 12652/20642 cut-off events. For 17164/18020 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 168882 event pairs, 4671 based on Foata normal form. 910/20216 useless extension candidates. Maximal degree in co-relation 30927. Up to 8859 conditions per place. [2024-11-09 15:09:46,157 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 149 selfloop transitions, 8 changer transitions 0/190 dead transitions. [2024-11-09 15:09:46,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 190 transitions, 983 flow [2024-11-09 15:09:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2024-11-09 15:09:46,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2024-11-09 15:09:46,159 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 271 flow. Second operand 6 states and 396 transitions. [2024-11-09 15:09:46,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 190 transitions, 983 flow [2024-11-09 15:09:46,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 190 transitions, 945 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:46,295 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 286 flow [2024-11-09 15:09:46,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-11-09 15:09:46,297 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-11-09 15:09:46,297 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 286 flow [2024-11-09 15:09:46,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:46,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:46,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:46,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 15:09:46,297 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:46,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:46,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1408718691, now seen corresponding path program 1 times [2024-11-09 15:09:46,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:46,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881055295] [2024-11-09 15:09:46,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:46,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:46,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:46,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881055295] [2024-11-09 15:09:46,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881055295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:46,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:46,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:09:46,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836970438] [2024-11-09 15:09:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:46,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:46,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:46,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:46,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:46,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-11-09 15:09:46,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:46,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:46,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-11-09 15:09:46,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:47,206 INFO L124 PetriNetUnfolderBase]: 9321/17281 cut-off events. [2024-11-09 15:09:47,206 INFO L125 PetriNetUnfolderBase]: For 20529/21488 co-relation queries the response was YES. [2024-11-09 15:09:47,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40962 conditions, 17281 events. 9321/17281 cut-off events. For 20529/21488 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 157631 event pairs, 2522 based on Foata normal form. 1213/16891 useless extension candidates. Maximal degree in co-relation 28146. Up to 7312 conditions per place. [2024-11-09 15:09:47,278 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 69 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-11-09 15:09:47,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 108 transitions, 543 flow [2024-11-09 15:09:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:47,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:47,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2024-11-09 15:09:47,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6938202247191011 [2024-11-09 15:09:47,280 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 286 flow. Second operand 4 states and 247 transitions. [2024-11-09 15:09:47,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 108 transitions, 543 flow [2024-11-09 15:09:47,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 108 transitions, 515 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:47,329 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 274 flow [2024-11-09 15:09:47,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-11-09 15:09:47,330 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-09 15:09:47,330 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 274 flow [2024-11-09 15:09:47,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:47,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:47,330 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:47,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 15:09:47,330 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:47,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:47,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1718817497, now seen corresponding path program 1 times [2024-11-09 15:09:47,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:47,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766560769] [2024-11-09 15:09:47,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:47,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:47,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:47,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766560769] [2024-11-09 15:09:47,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766560769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:47,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:47,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:09:47,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885550845] [2024-11-09 15:09:47,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:47,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:09:47,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:47,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:09:47,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:09:47,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-09 15:09:47,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:47,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:47,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-09 15:09:47,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:48,376 INFO L124 PetriNetUnfolderBase]: 12797/20226 cut-off events. [2024-11-09 15:09:48,376 INFO L125 PetriNetUnfolderBase]: For 22075/23456 co-relation queries the response was YES. [2024-11-09 15:09:48,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50772 conditions, 20226 events. 12797/20226 cut-off events. For 22075/23456 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 158846 event pairs, 2180 based on Foata normal form. 1931/20947 useless extension candidates. Maximal degree in co-relation 34723. Up to 5475 conditions per place. [2024-11-09 15:09:48,501 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 123 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-11-09 15:09:48,501 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 165 transitions, 874 flow [2024-11-09 15:09:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:48,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:48,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2024-11-09 15:09:48,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6835205992509363 [2024-11-09 15:09:48,503 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 274 flow. Second operand 6 states and 365 transitions. [2024-11-09 15:09:48,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 165 transitions, 874 flow [2024-11-09 15:09:48,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 848 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:48,565 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 291 flow [2024-11-09 15:09:48,565 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-11-09 15:09:48,566 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-11-09 15:09:48,566 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 291 flow [2024-11-09 15:09:48,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:48,566 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:48,566 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:48,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 15:09:48,567 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:48,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash -720606762, now seen corresponding path program 1 times [2024-11-09 15:09:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:48,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663242003] [2024-11-09 15:09:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:48,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:48,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663242003] [2024-11-09 15:09:48,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663242003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:48,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:48,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:48,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916710437] [2024-11-09 15:09:48,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:48,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:09:48,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:48,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:09:48,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:09:48,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-11-09 15:09:48,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:48,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:48,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-11-09 15:09:48,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:49,606 INFO L124 PetriNetUnfolderBase]: 12930/20270 cut-off events. [2024-11-09 15:09:49,607 INFO L125 PetriNetUnfolderBase]: For 29666/31972 co-relation queries the response was YES. [2024-11-09 15:09:49,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53335 conditions, 20270 events. 12930/20270 cut-off events. For 29666/31972 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 156721 event pairs, 2539 based on Foata normal form. 2053/21350 useless extension candidates. Maximal degree in co-relation 36672. Up to 9002 conditions per place. [2024-11-09 15:09:49,752 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 99 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-11-09 15:09:49,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 136 transitions, 743 flow [2024-11-09 15:09:49,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 15:09:49,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 15:09:49,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 314 transitions. [2024-11-09 15:09:49,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7056179775280899 [2024-11-09 15:09:49,754 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 291 flow. Second operand 5 states and 314 transitions. [2024-11-09 15:09:49,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 136 transitions, 743 flow [2024-11-09 15:09:49,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 136 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:49,839 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 288 flow [2024-11-09 15:09:49,840 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=288, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2024-11-09 15:09:49,840 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2024-11-09 15:09:49,840 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 288 flow [2024-11-09 15:09:49,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:49,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:49,840 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:49,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 15:09:49,841 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:49,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:49,841 INFO L85 PathProgramCache]: Analyzing trace with hash -720605737, now seen corresponding path program 1 times [2024-11-09 15:09:49,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:49,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044344573] [2024-11-09 15:09:49,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:49,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:49,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:49,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:49,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044344573] [2024-11-09 15:09:49,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044344573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:49,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:49,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:49,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643948125] [2024-11-09 15:09:49,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:49,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:49,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:49,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:49,898 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:49,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:49,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:49,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:49,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:50,806 INFO L124 PetriNetUnfolderBase]: 10522/18008 cut-off events. [2024-11-09 15:09:50,806 INFO L125 PetriNetUnfolderBase]: For 22769/24514 co-relation queries the response was YES. [2024-11-09 15:09:50,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45473 conditions, 18008 events. 10522/18008 cut-off events. For 22769/24514 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 153033 event pairs, 4871 based on Foata normal form. 1861/18896 useless extension candidates. Maximal degree in co-relation 31247. Up to 8895 conditions per place. [2024-11-09 15:09:50,923 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 101 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-09 15:09:50,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 136 transitions, 720 flow [2024-11-09 15:09:50,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:50,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-09 15:09:50,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-09 15:09:50,924 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 288 flow. Second operand 4 states and 265 transitions. [2024-11-09 15:09:50,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 136 transitions, 720 flow [2024-11-09 15:09:50,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 136 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 15:09:50,984 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 278 flow [2024-11-09 15:09:50,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-11-09 15:09:50,985 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-09 15:09:50,985 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 278 flow [2024-11-09 15:09:50,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:50,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:50,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:50,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 15:09:50,985 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:50,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:50,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1603914646, now seen corresponding path program 1 times [2024-11-09 15:09:50,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:50,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784984705] [2024-11-09 15:09:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:50,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:51,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:51,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784984705] [2024-11-09 15:09:51,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784984705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:51,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:09:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972380198] [2024-11-09 15:09:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:51,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:09:51,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:09:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:09:51,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-11-09 15:09:51,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:51,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:51,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-11-09 15:09:51,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:52,077 INFO L124 PetriNetUnfolderBase]: 12701/20098 cut-off events. [2024-11-09 15:09:52,077 INFO L125 PetriNetUnfolderBase]: For 24570/26071 co-relation queries the response was YES. [2024-11-09 15:09:52,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51490 conditions, 20098 events. 12701/20098 cut-off events. For 24570/26071 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 158119 event pairs, 4595 based on Foata normal form. 1776/20867 useless extension candidates. Maximal degree in co-relation 35113. Up to 8717 conditions per place. [2024-11-09 15:09:52,223 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 99 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2024-11-09 15:09:52,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 135 transitions, 707 flow [2024-11-09 15:09:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:09:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:09:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-09 15:09:52,224 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-11-09 15:09:52,224 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 278 flow. Second operand 4 states and 265 transitions. [2024-11-09 15:09:52,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 135 transitions, 707 flow [2024-11-09 15:09:52,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 135 transitions, 688 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:09:52,258 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 282 flow [2024-11-09 15:09:52,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-11-09 15:09:52,259 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-11-09 15:09:52,259 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 282 flow [2024-11-09 15:09:52,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:52,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:52,259 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:52,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 15:09:52,259 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:52,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:52,260 INFO L85 PathProgramCache]: Analyzing trace with hash -863972416, now seen corresponding path program 1 times [2024-11-09 15:09:52,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:52,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302266258] [2024-11-09 15:09:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:52,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:52,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:52,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302266258] [2024-11-09 15:09:52,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302266258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:52,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:52,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 15:09:52,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279841941] [2024-11-09 15:09:52,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:52,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:09:52,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:09:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 15:09:52,390 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-09 15:09:52,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:52,390 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:52,390 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-09 15:09:52,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:53,652 INFO L124 PetriNetUnfolderBase]: 13746/21383 cut-off events. [2024-11-09 15:09:53,652 INFO L125 PetriNetUnfolderBase]: For 30736/32891 co-relation queries the response was YES. [2024-11-09 15:09:53,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56967 conditions, 21383 events. 13746/21383 cut-off events. For 30736/32891 co-relation queries the response was YES. Maximal size of possible extension queue 1169. Compared 165224 event pairs, 2778 based on Foata normal form. 2709/23037 useless extension candidates. Maximal degree in co-relation 44476. Up to 5557 conditions per place. [2024-11-09 15:09:53,751 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 128 selfloop transitions, 9 changer transitions 0/166 dead transitions. [2024-11-09 15:09:53,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 166 transitions, 934 flow [2024-11-09 15:09:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:53,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2024-11-09 15:09:53,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6779026217228464 [2024-11-09 15:09:53,753 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 282 flow. Second operand 6 states and 362 transitions. [2024-11-09 15:09:53,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 166 transitions, 934 flow [2024-11-09 15:09:53,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 166 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:09:53,811 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 303 flow [2024-11-09 15:09:53,811 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2024-11-09 15:09:53,811 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2024-11-09 15:09:53,811 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 303 flow [2024-11-09 15:09:53,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:53,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:09:53,812 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:09:53,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 15:09:53,812 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-09 15:09:53,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:09:53,812 INFO L85 PathProgramCache]: Analyzing trace with hash -66023300, now seen corresponding path program 1 times [2024-11-09 15:09:53,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:09:53,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780571994] [2024-11-09 15:09:53,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:09:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:09:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:09:53,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:09:53,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:09:53,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780571994] [2024-11-09 15:09:53,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780571994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:09:53,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:09:53,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 15:09:53,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157252343] [2024-11-09 15:09:53,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:09:53,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 15:09:53,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:09:53,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 15:09:53,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 15:09:53,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-11-09 15:09:53,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:53,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:09:53,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-11-09 15:09:53,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:09:54,906 INFO L124 PetriNetUnfolderBase]: 13746/20724 cut-off events. [2024-11-09 15:09:54,906 INFO L125 PetriNetUnfolderBase]: For 32307/34421 co-relation queries the response was YES. [2024-11-09 15:09:54,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58546 conditions, 20724 events. 13746/20724 cut-off events. For 32307/34421 co-relation queries the response was YES. Maximal size of possible extension queue 1145. Compared 153317 event pairs, 5330 based on Foata normal form. 2391/22568 useless extension candidates. Maximal degree in co-relation 45907. Up to 9937 conditions per place. [2024-11-09 15:09:54,991 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2024-11-09 15:09:54,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 196 transitions, 1131 flow [2024-11-09 15:09:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:09:54,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:09:54,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2024-11-09 15:09:54,993 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7265917602996255 [2024-11-09 15:09:54,993 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 303 flow. Second operand 6 states and 388 transitions. [2024-11-09 15:09:54,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 196 transitions, 1131 flow [2024-11-09 15:09:55,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 196 transitions, 1113 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-09 15:09:55,179 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-09 15:09:55,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-11-09 15:09:55,180 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2024-11-09 15:09:55,180 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-09 15:09:55,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:09:55,182 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-09 15:09:55,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-09 15:09:55,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-09 15:09:55,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-09 15:09:55,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-09 15:09:55,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-09 15:09:55,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-09 15:09:55,184 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-09 15:09:55,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-09 15:09:55,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-09 15:09:55,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 15:09:55,186 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, 1] [2024-11-09 15:09:55,190 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 15:09:55,190 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 15:09:55,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:09:55 BasicIcfg [2024-11-09 15:09:55,194 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 15:09:55,194 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 15:09:55,194 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 15:09:55,194 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 15:09:55,194 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:09:27" (3/4) ... [2024-11-09 15:09:55,195 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 15:09:55,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 15:09:55,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 15:09:55,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 15:09:55,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-09 15:09:55,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 15:09:55,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 15:09:55,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 15:09:55,269 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 15:09:55,269 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 15:09:55,270 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 15:09:55,270 INFO L158 Benchmark]: Toolchain (without parser) took 28757.52ms. Allocated memory was 251.7MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 179.5MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-09 15:09:55,270 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 140.5MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 15:09:55,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.64ms. Allocated memory is still 251.7MB. Free memory was 179.5MB in the beginning and 166.1MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 15:09:55,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.79ms. Allocated memory is still 251.7MB. Free memory was 166.1MB in the beginning and 164.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:09:55,271 INFO L158 Benchmark]: Boogie Preprocessor took 34.26ms. Allocated memory is still 251.7MB. Free memory was 164.0MB in the beginning and 161.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 15:09:55,271 INFO L158 Benchmark]: RCFGBuilder took 640.65ms. Allocated memory is still 251.7MB. Free memory was 161.2MB in the beginning and 113.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-11-09 15:09:55,271 INFO L158 Benchmark]: TraceAbstraction took 27738.03ms. Allocated memory was 251.7MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 112.4MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-09 15:09:55,271 INFO L158 Benchmark]: Witness Printer took 75.65ms. Allocated memory is still 3.9GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 15:09:55,272 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 140.5MB. Free memory is still 105.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.64ms. Allocated memory is still 251.7MB. Free memory was 179.5MB in the beginning and 166.1MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.79ms. Allocated memory is still 251.7MB. Free memory was 166.1MB in the beginning and 164.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.26ms. Allocated memory is still 251.7MB. Free memory was 164.0MB in the beginning and 161.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 640.65ms. Allocated memory is still 251.7MB. Free memory was 161.2MB in the beginning and 113.0MB in the end (delta: 48.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 27738.03ms. Allocated memory was 251.7MB in the beginning and 3.9GB in the end (delta: 3.6GB). Free memory was 112.4MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 75.65ms. Allocated memory is still 3.9GB. Free memory was 2.2GB in the beginning and 2.2GB 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: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 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: 27.6s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2056 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1755 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4140 IncrementalHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 125 mSDtfsCounter, 4140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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! [2024-11-09 15:09:55,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE