./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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/parallel-bakery-2.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 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:04:21,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:04:21,590 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:04:21,600 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:04:21,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:04:21,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:04:21,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:04:21,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:04:21,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:04:21,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:04:21,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:04:21,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:04:21,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:04:21,639 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:04:21,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:04:21,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:04:21,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:04:21,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:04:21,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:04:21,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:04:21,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:04:21,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:04:21,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:04:21,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:04:21,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:04:21,645 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:04:21,645 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:04:21,646 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:04:21,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:04:21,646 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:04:21,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:04:21,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:04:21,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:04:21,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:04:21,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:04:21,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:04:21,648 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:04:21,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:04:21,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:04:21,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:04:21,649 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:04:21,649 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:04:21,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:04:21,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:04:21,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-19 14:04:21,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:04:21,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:04:21,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:04:21,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:04:21,950 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:04:21,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-19 14:04:23,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:04:23,637 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:04:23,640 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-19 14:04:23,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21767645a/d0077218439749459969dedae5968ae5/FLAG38d35bb77 [2024-11-19 14:04:23,671 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21767645a/d0077218439749459969dedae5968ae5 [2024-11-19 14:04:23,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:04:23,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:04:23,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:04:23,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:04:23,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:04:23,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:04:23" (1/1) ... [2024-11-19 14:04:23,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@184537d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:23, skipping insertion in model container [2024-11-19 14:04:23,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:04:23" (1/1) ... [2024-11-19 14:04:23,714 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:04:24,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:04:24,019 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:04:24,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:04:24,069 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:04:24,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24 WrapperNode [2024-11-19 14:04:24,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:04:24,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:04:24,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:04:24,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:04:24,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,086 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,107 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 149 [2024-11-19 14:04:24,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:04:24,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:04:24,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:04:24,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:04:24,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,148 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]. [2024-11-19 14:04:24,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:04:24,168 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:04:24,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:04:24,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:04:24,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (1/1) ... [2024-11-19 14:04:24,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:04:24,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:04:24,207 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) [2024-11-19 14:04:24,211 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 [2024-11-19 14:04:24,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:04:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:04:24,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:04:24,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:04:24,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:04:24,251 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:04:24,332 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:04:24,334 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:04:24,551 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:04:24,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:04:24,668 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:04:24,668 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:04:24,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:24 BoogieIcfgContainer [2024-11-19 14:04:24,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:04:24,671 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:04:24,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:04:24,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:04:24,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:04:23" (1/3) ... [2024-11-19 14:04:24,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c2c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:24, skipping insertion in model container [2024-11-19 14:04:24,675 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:04:24" (2/3) ... [2024-11-19 14:04:24,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c2c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:24, skipping insertion in model container [2024-11-19 14:04:24,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:24" (3/3) ... [2024-11-19 14:04:24,677 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-19 14:04:24,693 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:04:24,693 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-19 14:04:24,694 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:04:24,769 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 14:04:24,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 64 transitions, 142 flow [2024-11-19 14:04:24,844 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-19 14:04:24,844 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-19 14:04:24,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 62 events. 2/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-19 14:04:24,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 64 transitions, 142 flow [2024-11-19 14:04:24,853 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 60 transitions, 129 flow [2024-11-19 14:04:24,879 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:04:24,887 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;@10f23e92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:04:24,887 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-19 14:04:24,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:04:24,907 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-19 14:04:24,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:04:24,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:24,908 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:24,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:24,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash -850074253, now seen corresponding path program 1 times [2024-11-19 14:04:24,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:24,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896992490] [2024-11-19 14:04:24,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:24,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:25,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:25,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:25,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896992490] [2024-11-19 14:04:25,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896992490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:25,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:25,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:04:25,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873718385] [2024-11-19 14:04:25,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:25,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:04:25,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:25,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:04:25,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:04:25,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-19 14:04:25,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:25,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:25,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-19 14:04:25,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:25,600 INFO L124 PetriNetUnfolderBase]: 260/688 cut-off events. [2024-11-19 14:04:25,600 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-19 14:04:25,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 688 events. 260/688 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4267 event pairs, 138 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 1104. Up to 293 conditions per place. [2024-11-19 14:04:25,608 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 35 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-11-19 14:04:25,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 73 transitions, 240 flow [2024-11-19 14:04:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:04:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:04:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2024-11-19 14:04:25,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-19 14:04:25,622 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 129 flow. Second operand 3 states and 144 transitions. [2024-11-19 14:04:25,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 73 transitions, 240 flow [2024-11-19 14:04:25,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:25,630 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 158 flow [2024-11-19 14:04:25,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-11-19 14:04:25,635 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 1 predicate places. [2024-11-19 14:04:25,636 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 158 flow [2024-11-19 14:04:25,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:25,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:25,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:25,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:04:25,637 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:25,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash -582498681, now seen corresponding path program 1 times [2024-11-19 14:04:25,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:25,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893182164] [2024-11-19 14:04:25,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:25,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:25,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:25,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:25,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:25,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893182164] [2024-11-19 14:04:25,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893182164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:25,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:25,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:25,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140959346] [2024-11-19 14:04:25,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:25,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:25,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:25,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:25,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:25,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-19 14:04:25,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-19 14:04:25,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:25,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-19 14:04:25,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:26,062 INFO L124 PetriNetUnfolderBase]: 464/1144 cut-off events. [2024-11-19 14:04:26,063 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-19 14:04:26,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 1144 events. 464/1144 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7311 event pairs, 54 based on Foata normal form. 0/908 useless extension candidates. Maximal degree in co-relation 1847. Up to 357 conditions per place. [2024-11-19 14:04:26,074 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 55 selfloop transitions, 13 changer transitions 0/94 dead transitions. [2024-11-19 14:04:26,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 94 transitions, 368 flow [2024-11-19 14:04:26,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:26,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:26,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-11-19 14:04:26,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-19 14:04:26,080 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 158 flow. Second operand 5 states and 208 transitions. [2024-11-19 14:04:26,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 94 transitions, 368 flow [2024-11-19 14:04:26,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:26,087 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 238 flow [2024-11-19 14:04:26,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2024-11-19 14:04:26,088 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-11-19 14:04:26,088 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 238 flow [2024-11-19 14:04:26,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-19 14:04:26,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:26,089 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:26,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:04:26,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:26,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash -850074252, now seen corresponding path program 1 times [2024-11-19 14:04:26,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:26,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825024420] [2024-11-19 14:04:26,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:26,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:26,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:26,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825024420] [2024-11-19 14:04:26,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825024420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:26,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:26,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:04:26,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977950136] [2024-11-19 14:04:26,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:26,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:04:26,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:26,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:04:26,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:04:26,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-19 14:04:26,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:26,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:26,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-19 14:04:26,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:26,330 INFO L124 PetriNetUnfolderBase]: 305/885 cut-off events. [2024-11-19 14:04:26,330 INFO L125 PetriNetUnfolderBase]: For 513/536 co-relation queries the response was YES. [2024-11-19 14:04:26,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 885 events. 305/885 cut-off events. For 513/536 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5987 event pairs, 98 based on Foata normal form. 26/723 useless extension candidates. Maximal degree in co-relation 1451. Up to 262 conditions per place. [2024-11-19 14:04:26,338 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 35 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-19 14:04:26,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 356 flow [2024-11-19 14:04:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:04:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:04:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-19 14:04:26,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.734375 [2024-11-19 14:04:26,340 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 238 flow. Second operand 3 states and 141 transitions. [2024-11-19 14:04:26,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 356 flow [2024-11-19 14:04:26,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 354 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-19 14:04:26,348 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 266 flow [2024-11-19 14:04:26,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2024-11-19 14:04:26,349 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2024-11-19 14:04:26,349 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 266 flow [2024-11-19 14:04:26,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:26,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:26,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:26,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:04:26,351 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:26,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:26,351 INFO L85 PathProgramCache]: Analyzing trace with hash -195996117, now seen corresponding path program 1 times [2024-11-19 14:04:26,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:26,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831269095] [2024-11-19 14:04:26,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:26,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:26,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:26,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:26,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831269095] [2024-11-19 14:04:26,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831269095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:26,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:26,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:04:26,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515512174] [2024-11-19 14:04:26,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:26,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:04:26,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:26,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:04:26,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:04:26,433 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-19 14:04:26,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-19 14:04:26,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:26,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-19 14:04:26,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:26,585 INFO L124 PetriNetUnfolderBase]: 346/1064 cut-off events. [2024-11-19 14:04:26,586 INFO L125 PetriNetUnfolderBase]: For 551/590 co-relation queries the response was YES. [2024-11-19 14:04:26,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1064 events. 346/1064 cut-off events. For 551/590 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7989 event pairs, 196 based on Foata normal form. 3/835 useless extension candidates. Maximal degree in co-relation 1220. Up to 375 conditions per place. [2024-11-19 14:04:26,594 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 39 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2024-11-19 14:04:26,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 407 flow [2024-11-19 14:04:26,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:04:26,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:04:26,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-19 14:04:26,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7447916666666666 [2024-11-19 14:04:26,597 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 266 flow. Second operand 3 states and 143 transitions. [2024-11-19 14:04:26,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 407 flow [2024-11-19 14:04:26,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:26,604 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 298 flow [2024-11-19 14:04:26,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-19 14:04:26,606 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2024-11-19 14:04:26,606 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 298 flow [2024-11-19 14:04:26,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-19 14:04:26,606 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:26,607 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:26,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:04:26,607 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:26,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:26,609 INFO L85 PathProgramCache]: Analyzing trace with hash -195996116, now seen corresponding path program 1 times [2024-11-19 14:04:26,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:26,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372785996] [2024-11-19 14:04:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:26,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:26,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:26,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372785996] [2024-11-19 14:04:26,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372785996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:26,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:26,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:04:26,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123209626] [2024-11-19 14:04:26,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:26,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:04:26,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:26,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:04:26,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:04:26,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-19 14:04:26,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-19 14:04:26,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:26,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-19 14:04:26,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:26,798 INFO L124 PetriNetUnfolderBase]: 329/1055 cut-off events. [2024-11-19 14:04:26,799 INFO L125 PetriNetUnfolderBase]: For 716/751 co-relation queries the response was YES. [2024-11-19 14:04:26,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2260 conditions, 1055 events. 329/1055 cut-off events. For 716/751 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8031 event pairs, 130 based on Foata normal form. 8/873 useless extension candidates. Maximal degree in co-relation 1248. Up to 319 conditions per place. [2024-11-19 14:04:26,807 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 33 selfloop transitions, 12 changer transitions 0/82 dead transitions. [2024-11-19 14:04:26,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 82 transitions, 423 flow [2024-11-19 14:04:26,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:04:26,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:04:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-11-19 14:04:26,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-19 14:04:26,809 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 298 flow. Second operand 3 states and 140 transitions. [2024-11-19 14:04:26,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 82 transitions, 423 flow [2024-11-19 14:04:26,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:26,815 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 322 flow [2024-11-19 14:04:26,816 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-19 14:04:26,817 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2024-11-19 14:04:26,818 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 322 flow [2024-11-19 14:04:26,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2024-11-19 14:04:26,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:26,818 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:26,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:04:26,819 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:26,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:26,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1780912926, now seen corresponding path program 1 times [2024-11-19 14:04:26,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:26,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013361274] [2024-11-19 14:04:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:26,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:26,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:26,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:26,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013361274] [2024-11-19 14:04:26,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013361274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:26,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:26,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:04:26,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412173624] [2024-11-19 14:04:26,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:26,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:26,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:26,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:26,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:26,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-19 14:04:26,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-11-19 14:04:26,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:26,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-19 14:04:26,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:27,078 INFO L124 PetriNetUnfolderBase]: 341/1014 cut-off events. [2024-11-19 14:04:27,078 INFO L125 PetriNetUnfolderBase]: For 1255/1279 co-relation queries the response was YES. [2024-11-19 14:04:27,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2334 conditions, 1014 events. 341/1014 cut-off events. For 1255/1279 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7118 event pairs, 47 based on Foata normal form. 8/888 useless extension candidates. Maximal degree in co-relation 2083. Up to 337 conditions per place. [2024-11-19 14:04:27,086 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 60 selfloop transitions, 13 changer transitions 0/101 dead transitions. [2024-11-19 14:04:27,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 101 transitions, 585 flow [2024-11-19 14:04:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:27,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 201 transitions. [2024-11-19 14:04:27,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.628125 [2024-11-19 14:04:27,088 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 322 flow. Second operand 5 states and 201 transitions. [2024-11-19 14:04:27,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 101 transitions, 585 flow [2024-11-19 14:04:27,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:27,093 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 404 flow [2024-11-19 14:04:27,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-19 14:04:27,094 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2024-11-19 14:04:27,094 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 404 flow [2024-11-19 14:04:27,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 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) [2024-11-19 14:04:27,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:27,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:27,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:04:27,095 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:27,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:27,095 INFO L85 PathProgramCache]: Analyzing trace with hash 171383401, now seen corresponding path program 1 times [2024-11-19 14:04:27,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840501305] [2024-11-19 14:04:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:27,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:27,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:27,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840501305] [2024-11-19 14:04:27,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840501305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:27,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:27,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:27,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99571204] [2024-11-19 14:04:27,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:27,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:27,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:27,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:27,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:27,176 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-19 14:04:27,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-19 14:04:27,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:27,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-19 14:04:27,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:27,386 INFO L124 PetriNetUnfolderBase]: 633/1499 cut-off events. [2024-11-19 14:04:27,386 INFO L125 PetriNetUnfolderBase]: For 1640/1670 co-relation queries the response was YES. [2024-11-19 14:04:27,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3790 conditions, 1499 events. 633/1499 cut-off events. For 1640/1670 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 10547 event pairs, 106 based on Foata normal form. 65/1467 useless extension candidates. Maximal degree in co-relation 2338. Up to 415 conditions per place. [2024-11-19 14:04:27,399 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 57 selfloop transitions, 9 changer transitions 3/109 dead transitions. [2024-11-19 14:04:27,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 644 flow [2024-11-19 14:04:27,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-19 14:04:27,400 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.659375 [2024-11-19 14:04:27,400 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 404 flow. Second operand 5 states and 211 transitions. [2024-11-19 14:04:27,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 644 flow [2024-11-19 14:04:27,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 109 transitions, 642 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-19 14:04:27,408 INFO L231 Difference]: Finished difference. Result has 94 places, 84 transitions, 456 flow [2024-11-19 14:04:27,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=456, PETRI_PLACES=94, PETRI_TRANSITIONS=84} [2024-11-19 14:04:27,409 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 29 predicate places. [2024-11-19 14:04:27,409 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 84 transitions, 456 flow [2024-11-19 14:04:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-19 14:04:27,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:27,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:27,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:04:27,411 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:27,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:27,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1017918552, now seen corresponding path program 1 times [2024-11-19 14:04:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348366475] [2024-11-19 14:04:27,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:27,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:27,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:27,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:27,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:27,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348366475] [2024-11-19 14:04:27,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348366475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:27,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:27,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:27,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530661427] [2024-11-19 14:04:27,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:27,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:27,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:27,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:27,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:27,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-19 14:04:27,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 84 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-19 14:04:27,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:27,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-19 14:04:27,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:27,720 INFO L124 PetriNetUnfolderBase]: 539/1357 cut-off events. [2024-11-19 14:04:27,721 INFO L125 PetriNetUnfolderBase]: For 2046/2096 co-relation queries the response was YES. [2024-11-19 14:04:27,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3860 conditions, 1357 events. 539/1357 cut-off events. For 2046/2096 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 9574 event pairs, 127 based on Foata normal form. 79/1352 useless extension candidates. Maximal degree in co-relation 2583. Up to 356 conditions per place. [2024-11-19 14:04:27,733 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 63 selfloop transitions, 8 changer transitions 2/113 dead transitions. [2024-11-19 14:04:27,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 113 transitions, 731 flow [2024-11-19 14:04:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:27,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:27,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 214 transitions. [2024-11-19 14:04:27,735 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66875 [2024-11-19 14:04:27,735 INFO L175 Difference]: Start difference. First operand has 94 places, 84 transitions, 456 flow. Second operand 5 states and 214 transitions. [2024-11-19 14:04:27,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 113 transitions, 731 flow [2024-11-19 14:04:27,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 113 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:27,746 INFO L231 Difference]: Finished difference. Result has 98 places, 83 transitions, 469 flow [2024-11-19 14:04:27,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=469, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2024-11-19 14:04:27,747 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 33 predicate places. [2024-11-19 14:04:27,747 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 83 transitions, 469 flow [2024-11-19 14:04:27,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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) [2024-11-19 14:04:27,747 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:27,747 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:27,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 14:04:27,748 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:27,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:27,748 INFO L85 PathProgramCache]: Analyzing trace with hash 983537605, now seen corresponding path program 1 times [2024-11-19 14:04:27,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:27,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716114662] [2024-11-19 14:04:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:27,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:27,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:27,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716114662] [2024-11-19 14:04:27,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716114662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:27,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:27,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528858420] [2024-11-19 14:04:27,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:27,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:27,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:27,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:27,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:27,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-19 14:04:27,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 83 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-19 14:04:27,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:27,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-19 14:04:27,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:28,084 INFO L124 PetriNetUnfolderBase]: 645/1564 cut-off events. [2024-11-19 14:04:28,084 INFO L125 PetriNetUnfolderBase]: For 2486/2568 co-relation queries the response was YES. [2024-11-19 14:04:28,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4493 conditions, 1564 events. 645/1564 cut-off events. For 2486/2568 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11181 event pairs, 115 based on Foata normal form. 114/1612 useless extension candidates. Maximal degree in co-relation 2927. Up to 382 conditions per place. [2024-11-19 14:04:28,095 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 57 selfloop transitions, 10 changer transitions 3/111 dead transitions. [2024-11-19 14:04:28,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 111 transitions, 720 flow [2024-11-19 14:04:28,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:28,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:28,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-19 14:04:28,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.659375 [2024-11-19 14:04:28,097 INFO L175 Difference]: Start difference. First operand has 98 places, 83 transitions, 469 flow. Second operand 5 states and 211 transitions. [2024-11-19 14:04:28,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 111 transitions, 720 flow [2024-11-19 14:04:28,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 111 transitions, 692 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-19 14:04:28,105 INFO L231 Difference]: Finished difference. Result has 102 places, 87 transitions, 510 flow [2024-11-19 14:04:28,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=102, PETRI_TRANSITIONS=87} [2024-11-19 14:04:28,106 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 37 predicate places. [2024-11-19 14:04:28,106 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 87 transitions, 510 flow [2024-11-19 14:04:28,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-19 14:04:28,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:28,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:28,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:04:28,107 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:28,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:28,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1093917847, now seen corresponding path program 1 times [2024-11-19 14:04:28,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:28,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594182974] [2024-11-19 14:04:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:28,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:28,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:28,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:28,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594182974] [2024-11-19 14:04:28,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594182974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:28,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:28,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:28,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757647907] [2024-11-19 14:04:28,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:28,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:28,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:28,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-19 14:04:28,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 87 transitions, 510 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:28,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:28,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-19 14:04:28,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:28,513 INFO L124 PetriNetUnfolderBase]: 506/1452 cut-off events. [2024-11-19 14:04:28,513 INFO L125 PetriNetUnfolderBase]: For 2997/3055 co-relation queries the response was YES. [2024-11-19 14:04:28,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4320 conditions, 1452 events. 506/1452 cut-off events. For 2997/3055 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10623 event pairs, 60 based on Foata normal form. 47/1454 useless extension candidates. Maximal degree in co-relation 3961. Up to 252 conditions per place. [2024-11-19 14:04:28,524 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 69 selfloop transitions, 41 changer transitions 3/148 dead transitions. [2024-11-19 14:04:28,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 148 transitions, 1019 flow [2024-11-19 14:04:28,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 14:04:28,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 14:04:28,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 433 transitions. [2024-11-19 14:04:28,527 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5638020833333334 [2024-11-19 14:04:28,527 INFO L175 Difference]: Start difference. First operand has 102 places, 87 transitions, 510 flow. Second operand 12 states and 433 transitions. [2024-11-19 14:04:28,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 148 transitions, 1019 flow [2024-11-19 14:04:28,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 148 transitions, 1012 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-19 14:04:28,539 INFO L231 Difference]: Finished difference. Result has 112 places, 103 transitions, 716 flow [2024-11-19 14:04:28,539 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=716, PETRI_PLACES=112, PETRI_TRANSITIONS=103} [2024-11-19 14:04:28,540 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 47 predicate places. [2024-11-19 14:04:28,541 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 103 transitions, 716 flow [2024-11-19 14:04:28,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:28,542 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:28,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:28,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:04:28,542 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:28,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash -973449390, now seen corresponding path program 1 times [2024-11-19 14:04:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:28,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133643857] [2024-11-19 14:04:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:28,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:28,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:28,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:28,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133643857] [2024-11-19 14:04:28,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133643857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:28,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:28,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:28,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870705345] [2024-11-19 14:04:28,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:28,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:28,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:28,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:28,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:28,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-19 14:04:28,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 103 transitions, 716 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:28,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:28,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-19 14:04:28,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:29,049 INFO L124 PetriNetUnfolderBase]: 590/1887 cut-off events. [2024-11-19 14:04:29,049 INFO L125 PetriNetUnfolderBase]: For 5333/5548 co-relation queries the response was YES. [2024-11-19 14:04:29,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5901 conditions, 1887 events. 590/1887 cut-off events. For 5333/5548 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 15672 event pairs, 208 based on Foata normal form. 111/1957 useless extension candidates. Maximal degree in co-relation 5238. Up to 410 conditions per place. [2024-11-19 14:04:29,065 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 82 selfloop transitions, 34 changer transitions 10/161 dead transitions. [2024-11-19 14:04:29,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 161 transitions, 1351 flow [2024-11-19 14:04:29,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 14:04:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 14:04:29,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 336 transitions. [2024-11-19 14:04:29,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-19 14:04:29,070 INFO L175 Difference]: Start difference. First operand has 112 places, 103 transitions, 716 flow. Second operand 9 states and 336 transitions. [2024-11-19 14:04:29,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 161 transitions, 1351 flow [2024-11-19 14:04:29,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 161 transitions, 1269 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:29,088 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 899 flow [2024-11-19 14:04:29,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=899, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2024-11-19 14:04:29,090 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 58 predicate places. [2024-11-19 14:04:29,090 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 899 flow [2024-11-19 14:04:29,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:29,090 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:29,091 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:29,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 14:04:29,091 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:29,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:29,092 INFO L85 PathProgramCache]: Analyzing trace with hash -3906924, now seen corresponding path program 1 times [2024-11-19 14:04:29,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:29,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998312910] [2024-11-19 14:04:29,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:29,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:29,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:29,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998312910] [2024-11-19 14:04:29,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998312910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:29,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:29,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:29,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610095185] [2024-11-19 14:04:29,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:29,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:29,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:29,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:29,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-19 14:04:29,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 899 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:29,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:29,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-19 14:04:29,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:29,608 INFO L124 PetriNetUnfolderBase]: 637/2364 cut-off events. [2024-11-19 14:04:29,608 INFO L125 PetriNetUnfolderBase]: For 7348/7706 co-relation queries the response was YES. [2024-11-19 14:04:29,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7131 conditions, 2364 events. 637/2364 cut-off events. For 7348/7706 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 22482 event pairs, 167 based on Foata normal form. 142/2461 useless extension candidates. Maximal degree in co-relation 6250. Up to 371 conditions per place. [2024-11-19 14:04:29,624 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 89 selfloop transitions, 36 changer transitions 6/169 dead transitions. [2024-11-19 14:04:29,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 169 transitions, 1510 flow [2024-11-19 14:04:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 14:04:29,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 14:04:29,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 334 transitions. [2024-11-19 14:04:29,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5798611111111112 [2024-11-19 14:04:29,627 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 899 flow. Second operand 9 states and 334 transitions. [2024-11-19 14:04:29,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 169 transitions, 1510 flow [2024-11-19 14:04:29,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 169 transitions, 1488 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:29,652 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 1118 flow [2024-11-19 14:04:29,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1118, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-11-19 14:04:29,653 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 69 predicate places. [2024-11-19 14:04:29,653 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 1118 flow [2024-11-19 14:04:29,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:29,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:29,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:29,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 14:04:29,654 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:29,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash 428818033, now seen corresponding path program 1 times [2024-11-19 14:04:29,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:29,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003108075] [2024-11-19 14:04:29,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:29,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:29,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:29,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:29,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003108075] [2024-11-19 14:04:29,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003108075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:29,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:29,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:29,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564363752] [2024-11-19 14:04:29,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:29,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:29,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:29,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:29,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:29,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-19 14:04:29,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:29,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:29,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-19 14:04:29,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:30,155 INFO L124 PetriNetUnfolderBase]: 490/2090 cut-off events. [2024-11-19 14:04:30,155 INFO L125 PetriNetUnfolderBase]: For 8481/8888 co-relation queries the response was YES. [2024-11-19 14:04:30,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6698 conditions, 2090 events. 490/2090 cut-off events. For 8481/8888 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 20515 event pairs, 58 based on Foata normal form. 210/2285 useless extension candidates. Maximal degree in co-relation 6348. Up to 294 conditions per place. [2024-11-19 14:04:30,171 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 74 selfloop transitions, 58 changer transitions 0/170 dead transitions. [2024-11-19 14:04:30,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 170 transitions, 1627 flow [2024-11-19 14:04:30,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 14:04:30,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 14:04:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 423 transitions. [2024-11-19 14:04:30,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55078125 [2024-11-19 14:04:30,173 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 1118 flow. Second operand 12 states and 423 transitions. [2024-11-19 14:04:30,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 170 transitions, 1627 flow [2024-11-19 14:04:30,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 170 transitions, 1520 flow, removed 17 selfloop flow, removed 6 redundant places. [2024-11-19 14:04:30,203 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 1203 flow [2024-11-19 14:04:30,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1203, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2024-11-19 14:04:30,204 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 74 predicate places. [2024-11-19 14:04:30,204 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 1203 flow [2024-11-19 14:04:30,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 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) [2024-11-19 14:04:30,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:30,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:30,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 14:04:30,205 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:30,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:30,206 INFO L85 PathProgramCache]: Analyzing trace with hash 424895120, now seen corresponding path program 1 times [2024-11-19 14:04:30,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:30,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690941185] [2024-11-19 14:04:30,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:30,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:30,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:30,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:30,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:30,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690941185] [2024-11-19 14:04:30,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690941185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:30,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:30,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:04:30,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357512730] [2024-11-19 14:04:30,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:30,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:04:30,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:30,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:04:30,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:04:30,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-19 14:04:30,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 1203 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-19 14:04:30,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:30,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-19 14:04:30,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:30,620 INFO L124 PetriNetUnfolderBase]: 918/2705 cut-off events. [2024-11-19 14:04:30,621 INFO L125 PetriNetUnfolderBase]: For 9280/9395 co-relation queries the response was YES. [2024-11-19 14:04:30,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8664 conditions, 2705 events. 918/2705 cut-off events. For 9280/9395 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24924 event pairs, 313 based on Foata normal form. 168/2781 useless extension candidates. Maximal degree in co-relation 8265. Up to 808 conditions per place. [2024-11-19 14:04:30,698 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 68 selfloop transitions, 8 changer transitions 3/156 dead transitions. [2024-11-19 14:04:30,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 156 transitions, 1542 flow [2024-11-19 14:04:30,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:04:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:04:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-11-19 14:04:30,700 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6375 [2024-11-19 14:04:30,700 INFO L175 Difference]: Start difference. First operand has 139 places, 131 transitions, 1203 flow. Second operand 5 states and 204 transitions. [2024-11-19 14:04:30,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 156 transitions, 1542 flow [2024-11-19 14:04:30,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 1500 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:30,729 INFO L231 Difference]: Finished difference. Result has 140 places, 128 transitions, 1166 flow [2024-11-19 14:04:30,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1166, PETRI_PLACES=140, PETRI_TRANSITIONS=128} [2024-11-19 14:04:30,730 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-19 14:04:30,730 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 128 transitions, 1166 flow [2024-11-19 14:04:30,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-19 14:04:30,730 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:30,730 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:30,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:04:30,731 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:30,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:30,731 INFO L85 PathProgramCache]: Analyzing trace with hash 591457429, now seen corresponding path program 1 times [2024-11-19 14:04:30,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:30,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289186420] [2024-11-19 14:04:30,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:30,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:30,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:30,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:30,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289186420] [2024-11-19 14:04:30,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289186420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:30,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:30,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:30,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112919047] [2024-11-19 14:04:30,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:30,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:30,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:30,852 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 64 [2024-11-19 14:04:30,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 128 transitions, 1166 flow. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-19 14:04:30,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:30,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 64 [2024-11-19 14:04:30,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:31,168 INFO L124 PetriNetUnfolderBase]: 397/1799 cut-off events. [2024-11-19 14:04:31,168 INFO L125 PetriNetUnfolderBase]: For 7205/7563 co-relation queries the response was YES. [2024-11-19 14:04:31,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 1799 events. 397/1799 cut-off events. For 7205/7563 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17281 event pairs, 84 based on Foata normal form. 128/1910 useless extension candidates. Maximal degree in co-relation 5462. Up to 222 conditions per place. [2024-11-19 14:04:31,182 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 79 selfloop transitions, 34 changer transitions 0/152 dead transitions. [2024-11-19 14:04:31,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 1514 flow [2024-11-19 14:04:31,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:31,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 240 transitions. [2024-11-19 14:04:31,184 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-19 14:04:31,184 INFO L175 Difference]: Start difference. First operand has 140 places, 128 transitions, 1166 flow. Second operand 6 states and 240 transitions. [2024-11-19 14:04:31,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 1514 flow [2024-11-19 14:04:31,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 152 transitions, 1483 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 14:04:31,217 INFO L231 Difference]: Finished difference. Result has 140 places, 127 transitions, 1226 flow [2024-11-19 14:04:31,218 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1226, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2024-11-19 14:04:31,219 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-19 14:04:31,219 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 1226 flow [2024-11-19 14:04:31,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-19 14:04:31,219 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:31,219 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:31,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 14:04:31,220 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:31,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:31,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1557673871, now seen corresponding path program 1 times [2024-11-19 14:04:31,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:31,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718922488] [2024-11-19 14:04:31,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:31,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:31,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:31,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718922488] [2024-11-19 14:04:31,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718922488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:31,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:31,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:31,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442707297] [2024-11-19 14:04:31,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:31,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:04:31,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:31,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:04:31,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:04:31,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 64 [2024-11-19 14:04:31,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 1226 flow. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-19 14:04:31,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:31,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 64 [2024-11-19 14:04:31,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:31,624 INFO L124 PetriNetUnfolderBase]: 381/1709 cut-off events. [2024-11-19 14:04:31,625 INFO L125 PetriNetUnfolderBase]: For 7842/8193 co-relation queries the response was YES. [2024-11-19 14:04:31,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5384 conditions, 1709 events. 381/1709 cut-off events. For 7842/8193 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 16116 event pairs, 81 based on Foata normal form. 120/1816 useless extension candidates. Maximal degree in co-relation 5126. Up to 233 conditions per place. [2024-11-19 14:04:31,638 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 81 selfloop transitions, 32 changer transitions 0/152 dead transitions. [2024-11-19 14:04:31,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 1598 flow [2024-11-19 14:04:31,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:04:31,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:04:31,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-11-19 14:04:31,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6223958333333334 [2024-11-19 14:04:31,640 INFO L175 Difference]: Start difference. First operand has 140 places, 127 transitions, 1226 flow. Second operand 6 states and 239 transitions. [2024-11-19 14:04:31,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 1598 flow [2024-11-19 14:04:31,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 1574 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-19 14:04:31,655 INFO L231 Difference]: Finished difference. Result has 143 places, 126 transitions, 1286 flow [2024-11-19 14:04:31,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1179, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1286, PETRI_PLACES=143, PETRI_TRANSITIONS=126} [2024-11-19 14:04:31,656 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 78 predicate places. [2024-11-19 14:04:31,656 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 126 transitions, 1286 flow [2024-11-19 14:04:31,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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) [2024-11-19 14:04:31,657 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:31,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:31,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 14:04:31,657 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:31,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:31,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1214213649, now seen corresponding path program 1 times [2024-11-19 14:04:31,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:31,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479089904] [2024-11-19 14:04:31,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:31,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:31,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:31,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:31,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479089904] [2024-11-19 14:04:31,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479089904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:31,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:31,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:31,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510407190] [2024-11-19 14:04:31,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:31,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:31,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:31,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:31,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:31,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-19 14:04:31,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 126 transitions, 1286 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:31,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:31,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-19 14:04:31,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:32,106 INFO L124 PetriNetUnfolderBase]: 973/2682 cut-off events. [2024-11-19 14:04:32,106 INFO L125 PetriNetUnfolderBase]: For 9523/9618 co-relation queries the response was YES. [2024-11-19 14:04:32,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8420 conditions, 2682 events. 973/2682 cut-off events. For 9523/9618 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 23356 event pairs, 242 based on Foata normal form. 138/2764 useless extension candidates. Maximal degree in co-relation 5947. Up to 627 conditions per place. [2024-11-19 14:04:32,123 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 76 selfloop transitions, 9 changer transitions 4/159 dead transitions. [2024-11-19 14:04:32,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 159 transitions, 1683 flow [2024-11-19 14:04:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 14:04:32,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 14:04:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2024-11-19 14:04:32,125 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5424107142857143 [2024-11-19 14:04:32,125 INFO L175 Difference]: Start difference. First operand has 143 places, 126 transitions, 1286 flow. Second operand 7 states and 243 transitions. [2024-11-19 14:04:32,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 159 transitions, 1683 flow [2024-11-19 14:04:32,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 159 transitions, 1672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:04:32,147 INFO L231 Difference]: Finished difference. Result has 146 places, 125 transitions, 1290 flow [2024-11-19 14:04:32,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=146, PETRI_TRANSITIONS=125} [2024-11-19 14:04:32,148 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 81 predicate places. [2024-11-19 14:04:32,148 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 125 transitions, 1290 flow [2024-11-19 14:04:32,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:32,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:32,149 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:32,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 14:04:32,149 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:32,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:32,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1609585059, now seen corresponding path program 1 times [2024-11-19 14:04:32,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:32,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155671899] [2024-11-19 14:04:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:32,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:32,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155671899] [2024-11-19 14:04:32,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155671899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:32,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111381789] [2024-11-19 14:04:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:32,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:32,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-19 14:04:32,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 125 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:32,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:32,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-19 14:04:32,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:32,596 INFO L124 PetriNetUnfolderBase]: 914/2561 cut-off events. [2024-11-19 14:04:32,597 INFO L125 PetriNetUnfolderBase]: For 10178/10241 co-relation queries the response was YES. [2024-11-19 14:04:32,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8429 conditions, 2561 events. 914/2561 cut-off events. For 10178/10241 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 22141 event pairs, 244 based on Foata normal form. 92/2599 useless extension candidates. Maximal degree in co-relation 6040. Up to 599 conditions per place. [2024-11-19 14:04:32,619 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 73 selfloop transitions, 9 changer transitions 4/156 dead transitions. [2024-11-19 14:04:32,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 1675 flow [2024-11-19 14:04:32,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 14:04:32,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 14:04:32,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-11-19 14:04:32,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-19 14:04:32,622 INFO L175 Difference]: Start difference. First operand has 146 places, 125 transitions, 1290 flow. Second operand 7 states and 240 transitions. [2024-11-19 14:04:32,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 1675 flow [2024-11-19 14:04:32,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 1649 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-19 14:04:32,643 INFO L231 Difference]: Finished difference. Result has 145 places, 124 transitions, 1281 flow [2024-11-19 14:04:32,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1281, PETRI_PLACES=145, PETRI_TRANSITIONS=124} [2024-11-19 14:04:32,644 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 80 predicate places. [2024-11-19 14:04:32,644 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 124 transitions, 1281 flow [2024-11-19 14:04:32,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:32,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:32,644 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:32,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 14:04:32,644 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:32,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:32,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1107292166, now seen corresponding path program 1 times [2024-11-19 14:04:32,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:32,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381884181] [2024-11-19 14:04:32,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:32,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:32,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:32,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381884181] [2024-11-19 14:04:32,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381884181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:32,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:32,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:32,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947371415] [2024-11-19 14:04:32,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:32,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:32,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:32,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:32,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:32,753 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-19 14:04:32,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 124 transitions, 1281 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:32,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:32,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-19 14:04:32,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:33,065 INFO L124 PetriNetUnfolderBase]: 841/2424 cut-off events. [2024-11-19 14:04:33,065 INFO L125 PetriNetUnfolderBase]: For 10040/10109 co-relation queries the response was YES. [2024-11-19 14:04:33,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7948 conditions, 2424 events. 841/2424 cut-off events. For 10040/10109 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 21053 event pairs, 193 based on Foata normal form. 112/2488 useless extension candidates. Maximal degree in co-relation 5634. Up to 625 conditions per place. [2024-11-19 14:04:33,077 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 50 selfloop transitions, 7 changer transitions 59/167 dead transitions. [2024-11-19 14:04:33,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 167 transitions, 1765 flow [2024-11-19 14:04:33,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:04:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:04:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-11-19 14:04:33,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509375 [2024-11-19 14:04:33,078 INFO L175 Difference]: Start difference. First operand has 145 places, 124 transitions, 1281 flow. Second operand 10 states and 326 transitions. [2024-11-19 14:04:33,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 167 transitions, 1765 flow [2024-11-19 14:04:33,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 167 transitions, 1740 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-19 14:04:33,099 INFO L231 Difference]: Finished difference. Result has 147 places, 94 transitions, 912 flow [2024-11-19 14:04:33,099 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=912, PETRI_PLACES=147, PETRI_TRANSITIONS=94} [2024-11-19 14:04:33,100 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 82 predicate places. [2024-11-19 14:04:33,100 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 94 transitions, 912 flow [2024-11-19 14:04:33,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:33,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:04:33,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:33,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 14:04:33,101 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-19 14:04:33,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:04:33,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1896133424, now seen corresponding path program 1 times [2024-11-19 14:04:33,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:04:33,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537515539] [2024-11-19 14:04:33,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:04:33,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:04:33,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:04:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:04:33,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:04:33,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537515539] [2024-11-19 14:04:33,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537515539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:04:33,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:04:33,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:04:33,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663314638] [2024-11-19 14:04:33,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:04:33,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:04:33,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:04:33,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:04:33,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:04:33,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-19 14:04:33,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 94 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:33,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:04:33,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-19 14:04:33,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:04:33,379 INFO L124 PetriNetUnfolderBase]: 378/1128 cut-off events. [2024-11-19 14:04:33,379 INFO L125 PetriNetUnfolderBase]: For 5096/5117 co-relation queries the response was YES. [2024-11-19 14:04:33,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 1128 events. 378/1128 cut-off events. For 5096/5117 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 8094 event pairs, 91 based on Foata normal form. 63/1156 useless extension candidates. Maximal degree in co-relation 3451. Up to 228 conditions per place. [2024-11-19 14:04:33,385 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-11-19 14:04:33,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 111 transitions, 1157 flow [2024-11-19 14:04:33,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 14:04:33,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 14:04:33,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 273 transitions. [2024-11-19 14:04:33,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4739583333333333 [2024-11-19 14:04:33,388 INFO L175 Difference]: Start difference. First operand has 147 places, 94 transitions, 912 flow. Second operand 9 states and 273 transitions. [2024-11-19 14:04:33,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 111 transitions, 1157 flow [2024-11-19 14:04:33,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 111 transitions, 1051 flow, removed 2 selfloop flow, removed 23 redundant places. [2024-11-19 14:04:33,400 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2024-11-19 14:04:33,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2024-11-19 14:04:33,401 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 55 predicate places. [2024-11-19 14:04:33,401 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2024-11-19 14:04:33,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:04:33,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-19 14:04:33,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-19 14:04:33,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-19 14:04:33,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-19 14:04:33,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-19 14:04:33,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-19 14:04:33,406 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-19 14:04:33,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-19 14:04:33,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-19 14:04:33,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-19 14:04:33,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-19 14:04:33,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-19 14:04:33,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 14:04:33,408 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:04:33,413 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:04:33,413 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:04:33,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:04:33 BasicIcfg [2024-11-19 14:04:33,420 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:04:33,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:04:33,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:04:33,421 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:04:33,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:24" (3/4) ... [2024-11-19 14:04:33,423 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:04:33,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:04:33,425 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:04:33,431 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-19 14:04:33,432 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-19 14:04:33,432 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 14:04:33,432 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:04:33,517 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:04:33,518 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:04:33,518 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:04:33,518 INFO L158 Benchmark]: Toolchain (without parser) took 9842.42ms. Allocated memory was 148.9MB in the beginning and 320.9MB in the end (delta: 172.0MB). Free memory was 91.1MB in the beginning and 82.8MB in the end (delta: 8.3MB). Peak memory consumption was 180.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,519 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 100.7MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:04:33,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.35ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 115.9MB in the end (delta: -24.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.53ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 113.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,519 INFO L158 Benchmark]: Boogie Preprocessor took 58.89ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,520 INFO L158 Benchmark]: RCFGBuilder took 501.01ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 82.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,520 INFO L158 Benchmark]: TraceAbstraction took 8749.13ms. Allocated memory was 148.9MB in the beginning and 320.9MB in the end (delta: 172.0MB). Free memory was 82.4MB in the beginning and 87.0MB in the end (delta: -4.6MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,520 INFO L158 Benchmark]: Witness Printer took 97.49ms. Allocated memory is still 320.9MB. Free memory was 87.0MB in the beginning and 82.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:04:33,521 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 100.7MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.35ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 115.9MB in the end (delta: -24.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.53ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 113.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.89ms. Allocated memory is still 148.9MB. Free memory was 113.9MB in the beginning and 111.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.01ms. Allocated memory is still 148.9MB. Free memory was 111.8MB in the beginning and 82.9MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8749.13ms. Allocated memory was 148.9MB in the beginning and 320.9MB in the end (delta: 172.0MB). Free memory was 82.4MB in the beginning and 87.0MB in the end (delta: -4.6MB). Peak memory consumption was 168.4MB. Max. memory is 16.1GB. * Witness Printer took 97.49ms. Allocated memory is still 320.9MB. Free memory was 87.0MB in the beginning and 82.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 105 locations, 18 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: 8.6s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1385 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1119 mSDsluCounter, 557 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2435 IncrementalHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 171 mSDtfsCounter, 2435 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1290occurred in iteration=17, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:04:33,548 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