./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:01:34,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:01:34,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:01:34,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:01:34,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:01:34,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:01:34,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:01:34,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:01:34,907 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:01:34,908 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:01:34,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:01:34,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:01:34,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:01:34,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:01:34,911 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:01:34,912 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:01:34,912 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:01:34,912 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:01:34,912 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:01:34,913 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:01:34,913 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:01:34,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:01:34,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:01:34,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:01:34,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:01:34,918 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:01:34,918 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:01:34,919 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:01:34,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:01:34,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:01:34,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:01:34,919 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:01:34,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:01:34,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:01:34,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:01:34,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:01:34,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:01:34,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:01:34,923 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:01:34,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:01:34,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:01:34,924 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:01:34,924 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:01:34,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:01:34,925 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2024-10-12 00:01:35,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:01:35,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:01:35,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:01:35,243 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:01:35,243 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:01:35,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2024-10-12 00:01:36,821 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:01:37,014 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:01:37,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2024-10-12 00:01:37,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d5319a2fd/0be947a023b24237803148c0d7206944/FLAG74ce6243b [2024-10-12 00:01:37,040 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d5319a2fd/0be947a023b24237803148c0d7206944 [2024-10-12 00:01:37,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:01:37,044 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:01:37,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:01:37,048 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:01:37,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:01:37,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38ee7ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37, skipping insertion in model container [2024-10-12 00:01:37,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:01:37,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:01:37,337 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:01:37,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:01:37,394 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:01:37,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37 WrapperNode [2024-10-12 00:01:37,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:01:37,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:01:37,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:01:37,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:01:37,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,452 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 171 [2024-10-12 00:01:37,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:01:37,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:01:37,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:01:37,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:01:37,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,486 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:01:37,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:01:37,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:01:37,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:01:37,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:01:37,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (1/1) ... [2024-10-12 00:01:37,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:01:37,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:01:37,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:01:37,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:01:37,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:01:37,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:01:37,597 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:01:37,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:01:37,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:01:37,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:01:37,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:01:37,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:01:37,599 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:01:37,698 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:01:37,700 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:01:38,023 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:01:38,024 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:01:38,317 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:01:38,318 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 00:01:38,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:01:38 BoogieIcfgContainer [2024-10-12 00:01:38,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:01:38,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:01:38,323 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:01:38,326 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:01:38,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:01:37" (1/3) ... [2024-10-12 00:01:38,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18135655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:01:38, skipping insertion in model container [2024-10-12 00:01:38,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:01:37" (2/3) ... [2024-10-12 00:01:38,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18135655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:01:38, skipping insertion in model container [2024-10-12 00:01:38,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:01:38" (3/3) ... [2024-10-12 00:01:38,330 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2024-10-12 00:01:38,348 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:01:38,348 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-12 00:01:38,349 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:01:38,421 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-12 00:01:38,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 72 transitions, 158 flow [2024-10-12 00:01:38,489 INFO L124 PetriNetUnfolderBase]: 12/70 cut-off events. [2024-10-12 00:01:38,489 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-12 00:01:38,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 70 events. 12/70 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 224 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2024-10-12 00:01:38,495 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 72 transitions, 158 flow [2024-10-12 00:01:38,499 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 68 transitions, 145 flow [2024-10-12 00:01:38,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:01:38,517 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;@61fe01bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:01:38,518 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-12 00:01:38,528 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:01:38,529 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2024-10-12 00:01:38,529 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-12 00:01:38,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:38,530 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:38,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:38,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:38,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1381454885, now seen corresponding path program 1 times [2024-10-12 00:01:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:38,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278032776] [2024-10-12 00:01:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:38,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:38,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278032776] [2024-10-12 00:01:38,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278032776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:38,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:38,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:01:38,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903137408] [2024-10-12 00:01:38,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:38,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:38,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:38,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:38,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:38,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2024-10-12 00:01:38,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:38,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:38,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2024-10-12 00:01:38,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:39,222 INFO L124 PetriNetUnfolderBase]: 495/1052 cut-off events. [2024-10-12 00:01:39,222 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-12 00:01:39,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1838 conditions, 1052 events. 495/1052 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 7030 event pairs, 173 based on Foata normal form. 48/854 useless extension candidates. Maximal degree in co-relation 1769. Up to 374 conditions per place. [2024-10-12 00:01:39,235 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 41 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2024-10-12 00:01:39,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 80 transitions, 260 flow [2024-10-12 00:01:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-10-12 00:01:39,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-12 00:01:39,249 INFO L175 Difference]: Start difference. First operand has 63 places, 68 transitions, 145 flow. Second operand 4 states and 198 transitions. [2024-10-12 00:01:39,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 80 transitions, 260 flow [2024-10-12 00:01:39,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 80 transitions, 254 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:39,256 INFO L231 Difference]: Finished difference. Result has 61 places, 66 transitions, 142 flow [2024-10-12 00:01:39,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=61, PETRI_TRANSITIONS=66} [2024-10-12 00:01:39,262 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -2 predicate places. [2024-10-12 00:01:39,262 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 66 transitions, 142 flow [2024-10-12 00:01:39,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:39,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:39,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:39,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:01:39,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:39,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:39,265 INFO L85 PathProgramCache]: Analyzing trace with hash -124570925, now seen corresponding path program 1 times [2024-10-12 00:01:39,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:39,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892448077] [2024-10-12 00:01:39,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:39,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:39,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:39,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:39,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892448077] [2024-10-12 00:01:39,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892448077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:39,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:39,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:01:39,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886568578] [2024-10-12 00:01:39,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:39,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:39,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:39,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:39,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:39,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2024-10-12 00:01:39,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 66 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:39,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:39,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2024-10-12 00:01:39,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:39,635 INFO L124 PetriNetUnfolderBase]: 417/948 cut-off events. [2024-10-12 00:01:39,635 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-12 00:01:39,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1638 conditions, 948 events. 417/948 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6388 event pairs, 169 based on Foata normal form. 0/773 useless extension candidates. Maximal degree in co-relation 998. Up to 374 conditions per place. [2024-10-12 00:01:39,678 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 39 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-10-12 00:01:39,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 79 transitions, 254 flow [2024-10-12 00:01:39,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:39,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:39,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2024-10-12 00:01:39,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909722222222222 [2024-10-12 00:01:39,685 INFO L175 Difference]: Start difference. First operand has 61 places, 66 transitions, 142 flow. Second operand 4 states and 199 transitions. [2024-10-12 00:01:39,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 79 transitions, 254 flow [2024-10-12 00:01:39,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 79 transitions, 248 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:39,689 INFO L231 Difference]: Finished difference. Result has 60 places, 65 transitions, 140 flow [2024-10-12 00:01:39,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=60, PETRI_TRANSITIONS=65} [2024-10-12 00:01:39,692 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -3 predicate places. [2024-10-12 00:01:39,692 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 65 transitions, 140 flow [2024-10-12 00:01:39,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:39,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:39,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:39,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 00:01:39,694 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:39,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1226708596, now seen corresponding path program 1 times [2024-10-12 00:01:39,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102009129] [2024-10-12 00:01:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:39,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:39,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102009129] [2024-10-12 00:01:39,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102009129] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:39,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:39,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:01:39,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221479089] [2024-10-12 00:01:39,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:39,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:39,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:39,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:39,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:39,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2024-10-12 00:01:39,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 65 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:39,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:39,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2024-10-12 00:01:39,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:40,007 INFO L124 PetriNetUnfolderBase]: 522/1057 cut-off events. [2024-10-12 00:01:40,007 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-10-12 00:01:40,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1895 conditions, 1057 events. 522/1057 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6829 event pairs, 188 based on Foata normal form. 46/907 useless extension candidates. Maximal degree in co-relation 930. Up to 412 conditions per place. [2024-10-12 00:01:40,020 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 40 selfloop transitions, 3 changer transitions 0/76 dead transitions. [2024-10-12 00:01:40,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 76 transitions, 253 flow [2024-10-12 00:01:40,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:40,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:40,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 197 transitions. [2024-10-12 00:01:40,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6840277777777778 [2024-10-12 00:01:40,023 INFO L175 Difference]: Start difference. First operand has 60 places, 65 transitions, 140 flow. Second operand 4 states and 197 transitions. [2024-10-12 00:01:40,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 76 transitions, 253 flow [2024-10-12 00:01:40,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 76 transitions, 243 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:40,028 INFO L231 Difference]: Finished difference. Result has 58 places, 63 transitions, 136 flow [2024-10-12 00:01:40,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=58, PETRI_TRANSITIONS=63} [2024-10-12 00:01:40,030 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -5 predicate places. [2024-10-12 00:01:40,031 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 63 transitions, 136 flow [2024-10-12 00:01:40,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:40,032 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:40,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 00:01:40,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:40,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:40,033 INFO L85 PathProgramCache]: Analyzing trace with hash 545458613, now seen corresponding path program 1 times [2024-10-12 00:01:40,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:40,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761102794] [2024-10-12 00:01:40,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:40,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:40,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761102794] [2024-10-12 00:01:40,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761102794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:40,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:40,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:01:40,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301768329] [2024-10-12 00:01:40,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:40,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:01:40,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:40,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:01:40,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:01:40,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2024-10-12 00:01:40,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 63 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:40,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2024-10-12 00:01:40,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:40,403 INFO L124 PetriNetUnfolderBase]: 604/1141 cut-off events. [2024-10-12 00:01:40,404 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-10-12 00:01:40,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2156 conditions, 1141 events. 604/1141 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7314 event pairs, 169 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 1466. Up to 374 conditions per place. [2024-10-12 00:01:40,413 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 56 selfloop transitions, 5 changer transitions 0/91 dead transitions. [2024-10-12 00:01:40,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 326 flow [2024-10-12 00:01:40,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:01:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-12 00:01:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2024-10-12 00:01:40,415 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6861111111111111 [2024-10-12 00:01:40,416 INFO L175 Difference]: Start difference. First operand has 58 places, 63 transitions, 136 flow. Second operand 5 states and 247 transitions. [2024-10-12 00:01:40,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 326 flow [2024-10-12 00:01:40,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 91 transitions, 312 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:40,420 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 145 flow [2024-10-12 00:01:40,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=145, PETRI_PLACES=59, PETRI_TRANSITIONS=63} [2024-10-12 00:01:40,421 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -4 predicate places. [2024-10-12 00:01:40,421 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 145 flow [2024-10-12 00:01:40,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.4) internal successors, (192), 5 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:40,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:40,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 00:01:40,422 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:40,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:40,423 INFO L85 PathProgramCache]: Analyzing trace with hash 545459638, now seen corresponding path program 1 times [2024-10-12 00:01:40,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:40,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010528929] [2024-10-12 00:01:40,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:40,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010528929] [2024-10-12 00:01:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010528929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:40,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:40,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:01:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926833602] [2024-10-12 00:01:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:40,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:40,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:40,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:40,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:40,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-10-12 00:01:40,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 63 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:40,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-10-12 00:01:40,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:40,704 INFO L124 PetriNetUnfolderBase]: 666/1376 cut-off events. [2024-10-12 00:01:40,704 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-10-12 00:01:40,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2603 conditions, 1376 events. 666/1376 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9349 event pairs, 293 based on Foata normal form. 0/1172 useless extension candidates. Maximal degree in co-relation 1206. Up to 645 conditions per place. [2024-10-12 00:01:40,715 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 58 selfloop transitions, 5 changer transitions 0/94 dead transitions. [2024-10-12 00:01:40,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 94 transitions, 339 flow [2024-10-12 00:01:40,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:40,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:40,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2024-10-12 00:01:40,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-10-12 00:01:40,717 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 145 flow. Second operand 4 states and 208 transitions. [2024-10-12 00:01:40,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 94 transitions, 339 flow [2024-10-12 00:01:40,719 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 94 transitions, 330 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:40,720 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 165 flow [2024-10-12 00:01:40,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=165, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-10-12 00:01:40,721 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -2 predicate places. [2024-10-12 00:01:40,721 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 165 flow [2024-10-12 00:01:40,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:40,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:40,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 00:01:40,722 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:40,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:40,723 INFO L85 PathProgramCache]: Analyzing trace with hash 626739819, now seen corresponding path program 1 times [2024-10-12 00:01:40,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:40,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370395470] [2024-10-12 00:01:40,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:40,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:40,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:40,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370395470] [2024-10-12 00:01:40,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370395470] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:40,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:40,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:01:40,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412167463] [2024-10-12 00:01:40,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:40,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:40,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:40,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:40,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:40,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2024-10-12 00:01:40,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:40,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2024-10-12 00:01:40,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:40,928 INFO L124 PetriNetUnfolderBase]: 533/1208 cut-off events. [2024-10-12 00:01:40,928 INFO L125 PetriNetUnfolderBase]: For 333/357 co-relation queries the response was YES. [2024-10-12 00:01:40,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2265 conditions, 1208 events. 533/1208 cut-off events. For 333/357 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 8386 event pairs, 225 based on Foata normal form. 18/1042 useless extension candidates. Maximal degree in co-relation 1523. Up to 496 conditions per place. [2024-10-12 00:01:40,938 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 44 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2024-10-12 00:01:40,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 80 transitions, 314 flow [2024-10-12 00:01:40,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-10-12 00:01:40,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-12 00:01:40,940 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 165 flow. Second operand 4 states and 198 transitions. [2024-10-12 00:01:40,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 80 transitions, 314 flow [2024-10-12 00:01:40,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 80 transitions, 309 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:01:40,943 INFO L231 Difference]: Finished difference. Result has 62 places, 64 transitions, 166 flow [2024-10-12 00:01:40,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=166, PETRI_PLACES=62, PETRI_TRANSITIONS=64} [2024-10-12 00:01:40,946 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -1 predicate places. [2024-10-12 00:01:40,946 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 64 transitions, 166 flow [2024-10-12 00:01:40,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:40,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:40,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:40,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 00:01:40,947 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:40,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:40,948 INFO L85 PathProgramCache]: Analyzing trace with hash -270651572, now seen corresponding path program 1 times [2024-10-12 00:01:40,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:40,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584328372] [2024-10-12 00:01:40,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:40,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:41,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:41,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584328372] [2024-10-12 00:01:41,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584328372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:41,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:41,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:01:41,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143363208] [2024-10-12 00:01:41,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:41,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:01:41,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:41,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:01:41,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:01:41,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2024-10-12 00:01:41,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 64 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:41,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:41,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2024-10-12 00:01:41,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:41,390 INFO L124 PetriNetUnfolderBase]: 784/1454 cut-off events. [2024-10-12 00:01:41,391 INFO L125 PetriNetUnfolderBase]: For 385/387 co-relation queries the response was YES. [2024-10-12 00:01:41,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3100 conditions, 1454 events. 784/1454 cut-off events. For 385/387 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 9417 event pairs, 167 based on Foata normal form. 50/1368 useless extension candidates. Maximal degree in co-relation 2335. Up to 398 conditions per place. [2024-10-12 00:01:41,403 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 68 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-10-12 00:01:41,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 106 transitions, 422 flow [2024-10-12 00:01:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:01:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:01:41,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 279 transitions. [2024-10-12 00:01:41,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-10-12 00:01:41,407 INFO L175 Difference]: Start difference. First operand has 62 places, 64 transitions, 166 flow. Second operand 6 states and 279 transitions. [2024-10-12 00:01:41,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 106 transitions, 422 flow [2024-10-12 00:01:41,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 106 transitions, 404 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:41,412 INFO L231 Difference]: Finished difference. Result has 64 places, 64 transitions, 185 flow [2024-10-12 00:01:41,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=185, PETRI_PLACES=64, PETRI_TRANSITIONS=64} [2024-10-12 00:01:41,413 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 1 predicate places. [2024-10-12 00:01:41,414 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 64 transitions, 185 flow [2024-10-12 00:01:41,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:41,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:41,415 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:41,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 00:01:41,416 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:41,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:41,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1147053563, now seen corresponding path program 1 times [2024-10-12 00:01:41,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:41,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586267616] [2024-10-12 00:01:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:41,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:41,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:41,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586267616] [2024-10-12 00:01:41,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586267616] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:41,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:41,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:01:41,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366751689] [2024-10-12 00:01:41,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:41,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:41,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:41,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:41,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:41,505 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-10-12 00:01:41,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 64 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:41,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:41,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-10-12 00:01:41,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:41,727 INFO L124 PetriNetUnfolderBase]: 779/1421 cut-off events. [2024-10-12 00:01:41,727 INFO L125 PetriNetUnfolderBase]: For 990/1010 co-relation queries the response was YES. [2024-10-12 00:01:41,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3274 conditions, 1421 events. 779/1421 cut-off events. For 990/1010 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9030 event pairs, 287 based on Foata normal form. 44/1298 useless extension candidates. Maximal degree in co-relation 1832. Up to 657 conditions per place. [2024-10-12 00:01:41,739 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 58 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2024-10-12 00:01:41,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 92 transitions, 372 flow [2024-10-12 00:01:41,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:41,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-10-12 00:01:41,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2024-10-12 00:01:41,741 INFO L175 Difference]: Start difference. First operand has 64 places, 64 transitions, 185 flow. Second operand 4 states and 205 transitions. [2024-10-12 00:01:41,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 92 transitions, 372 flow [2024-10-12 00:01:41,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 92 transitions, 358 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-12 00:01:41,746 INFO L231 Difference]: Finished difference. Result has 63 places, 64 transitions, 186 flow [2024-10-12 00:01:41,746 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=63, PETRI_TRANSITIONS=64} [2024-10-12 00:01:41,747 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2024-10-12 00:01:41,748 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 64 transitions, 186 flow [2024-10-12 00:01:41,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:41,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:41,749 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:41,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 00:01:41,749 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:41,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:41,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1000579886, now seen corresponding path program 1 times [2024-10-12 00:01:41,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:41,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599772048] [2024-10-12 00:01:41,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:41,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:41,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:41,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599772048] [2024-10-12 00:01:41,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599772048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:41,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:41,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:01:41,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714785580] [2024-10-12 00:01:41,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:41,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:01:41,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:41,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:01:41,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:01:41,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-10-12 00:01:41,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 64 transitions, 186 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:41,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:41,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-10-12 00:01:41,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:42,040 INFO L124 PetriNetUnfolderBase]: 890/1862 cut-off events. [2024-10-12 00:01:42,041 INFO L125 PetriNetUnfolderBase]: For 1333/1409 co-relation queries the response was YES. [2024-10-12 00:01:42,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 1862 events. 890/1862 cut-off events. For 1333/1409 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 13257 event pairs, 408 based on Foata normal form. 76/1667 useless extension candidates. Maximal degree in co-relation 3034. Up to 874 conditions per place. [2024-10-12 00:01:42,055 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 71 selfloop transitions, 5 changer transitions 0/104 dead transitions. [2024-10-12 00:01:42,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 104 transitions, 510 flow [2024-10-12 00:01:42,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:01:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:01:42,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 206 transitions. [2024-10-12 00:01:42,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7152777777777778 [2024-10-12 00:01:42,059 INFO L175 Difference]: Start difference. First operand has 63 places, 64 transitions, 186 flow. Second operand 4 states and 206 transitions. [2024-10-12 00:01:42,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 104 transitions, 510 flow [2024-10-12 00:01:42,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 498 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:01:42,065 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 209 flow [2024-10-12 00:01:42,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2024-10-12 00:01:42,067 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-10-12 00:01:42,067 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 209 flow [2024-10-12 00:01:42,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:42,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:42,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:42,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 00:01:42,068 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:42,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:42,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1000578861, now seen corresponding path program 1 times [2024-10-12 00:01:42,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:42,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829582175] [2024-10-12 00:01:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:42,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:42,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:42,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829582175] [2024-10-12 00:01:42,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829582175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:42,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:42,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:01:42,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961453847] [2024-10-12 00:01:42,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:42,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:01:42,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:42,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:01:42,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:01:42,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2024-10-12 00:01:42,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:42,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:42,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2024-10-12 00:01:42,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:42,458 INFO L124 PetriNetUnfolderBase]: 1037/1941 cut-off events. [2024-10-12 00:01:42,459 INFO L125 PetriNetUnfolderBase]: For 1563/1659 co-relation queries the response was YES. [2024-10-12 00:01:42,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4721 conditions, 1941 events. 1037/1941 cut-off events. For 1563/1659 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 12935 event pairs, 244 based on Foata normal form. 96/1895 useless extension candidates. Maximal degree in co-relation 3558. Up to 760 conditions per place. [2024-10-12 00:01:42,473 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 70 selfloop transitions, 6 changer transitions 0/102 dead transitions. [2024-10-12 00:01:42,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 102 transitions, 517 flow [2024-10-12 00:01:42,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:01:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-12 00:01:42,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2024-10-12 00:01:42,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2024-10-12 00:01:42,475 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 209 flow. Second operand 5 states and 245 transitions. [2024-10-12 00:01:42,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 102 transitions, 517 flow [2024-10-12 00:01:42,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 102 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:01:42,481 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 223 flow [2024-10-12 00:01:42,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=223, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-10-12 00:01:42,483 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-10-12 00:01:42,483 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 223 flow [2024-10-12 00:01:42,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:42,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:42,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:42,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 00:01:42,484 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:42,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:42,484 INFO L85 PathProgramCache]: Analyzing trace with hash 953174259, now seen corresponding path program 1 times [2024-10-12 00:01:42,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:42,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914680818] [2024-10-12 00:01:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:42,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:42,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:42,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914680818] [2024-10-12 00:01:42,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914680818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:42,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:42,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:01:42,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086712411] [2024-10-12 00:01:42,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:42,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:01:42,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:42,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:01:42,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:01:42,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2024-10-12 00:01:42,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:42,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:42,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2024-10-12 00:01:42,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:42,890 INFO L124 PetriNetUnfolderBase]: 1037/1912 cut-off events. [2024-10-12 00:01:42,890 INFO L125 PetriNetUnfolderBase]: For 1911/2007 co-relation queries the response was YES. [2024-10-12 00:01:42,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4898 conditions, 1912 events. 1037/1912 cut-off events. For 1911/2007 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 12559 event pairs, 244 based on Foata normal form. 154/1924 useless extension candidates. Maximal degree in co-relation 3709. Up to 561 conditions per place. [2024-10-12 00:01:42,937 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 85 selfloop transitions, 9 changer transitions 0/120 dead transitions. [2024-10-12 00:01:42,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 120 transitions, 645 flow [2024-10-12 00:01:42,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:01:42,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:01:42,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2024-10-12 00:01:42,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-10-12 00:01:42,939 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 223 flow. Second operand 6 states and 276 transitions. [2024-10-12 00:01:42,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 120 transitions, 645 flow [2024-10-12 00:01:42,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 120 transitions, 636 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:01:42,944 INFO L231 Difference]: Finished difference. Result has 72 places, 66 transitions, 239 flow [2024-10-12 00:01:42,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=239, PETRI_PLACES=72, PETRI_TRANSITIONS=66} [2024-10-12 00:01:42,945 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2024-10-12 00:01:42,945 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 66 transitions, 239 flow [2024-10-12 00:01:42,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.5) internal successors, (213), 6 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:01:42,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:01:42,946 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:42,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 00:01:42,946 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-10-12 00:01:42,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:01:42,947 INFO L85 PathProgramCache]: Analyzing trace with hash 430948691, now seen corresponding path program 1 times [2024-10-12 00:01:42,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:01:42,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627804301] [2024-10-12 00:01:42,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:01:42,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:01:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:01:43,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:01:43,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:01:43,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627804301] [2024-10-12 00:01:43,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627804301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:01:43,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:01:43,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:01:43,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346169993] [2024-10-12 00:01:43,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:01:43,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:01:43,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:01:43,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:01:43,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:01:43,031 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2024-10-12 00:01:43,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 66 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 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) [2024-10-12 00:01:43,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:01:43,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2024-10-12 00:01:43,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:01:43,317 INFO L124 PetriNetUnfolderBase]: 1008/1808 cut-off events. [2024-10-12 00:01:43,317 INFO L125 PetriNetUnfolderBase]: For 1927/2021 co-relation queries the response was YES. [2024-10-12 00:01:43,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4944 conditions, 1808 events. 1008/1808 cut-off events. For 1927/2021 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 11636 event pairs, 408 based on Foata normal form. 123/1841 useless extension candidates. Maximal degree in co-relation 3740. Up to 903 conditions per place. [2024-10-12 00:01:43,325 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 0 selfloop transitions, 0 changer transitions 138/138 dead transitions. [2024-10-12 00:01:43,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 138 transitions, 775 flow [2024-10-12 00:01:43,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:01:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:01:43,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 294 transitions. [2024-10-12 00:01:43,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2024-10-12 00:01:43,327 INFO L175 Difference]: Start difference. First operand has 72 places, 66 transitions, 239 flow. Second operand 6 states and 294 transitions. [2024-10-12 00:01:43,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 138 transitions, 775 flow [2024-10-12 00:01:43,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 138 transitions, 757 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-12 00:01:43,335 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2024-10-12 00:01:43,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2024-10-12 00:01:43,336 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2024-10-12 00:01:43,336 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2024-10-12 00:01:43,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 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) [2024-10-12 00:01:43,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2024-10-12 00:01:43,339 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-10-12 00:01:43,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-10-12 00:01:43,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-10-12 00:01:43,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-10-12 00:01:43,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-10-12 00:01:43,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-10-12 00:01:43,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-10-12 00:01:43,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-10-12 00:01:43,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-10-12 00:01:43,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-10-12 00:01:43,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-10-12 00:01:43,341 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2024-10-12 00:01:43,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-10-12 00:01:43,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-10-12 00:01:43,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-10-12 00:01:43,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-10-12 00:01:43,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-10-12 00:01:43,342 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-10-12 00:01:43,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-10-12 00:01:43,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-10-12 00:01:43,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-10-12 00:01:43,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-10-12 00:01:43,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-10-12 00:01:43,343 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-10-12 00:01:43,344 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-10-12 00:01:43,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 00:01:43,344 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:01:43,349 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-12 00:01:43,349 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 00:01:43,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 12:01:43 BasicIcfg [2024-10-12 00:01:43,353 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 00:01:43,354 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:01:43,354 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:01:43,354 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:01:43,355 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:01:38" (3/4) ... [2024-10-12 00:01:43,356 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 00:01:43,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-12 00:01:43,359 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-12 00:01:43,363 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-10-12 00:01:43,363 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-10-12 00:01:43,363 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 00:01:43,364 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-12 00:01:43,451 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:01:43,451 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 00:01:43,451 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:01:43,452 INFO L158 Benchmark]: Toolchain (without parser) took 6407.60ms. Allocated memory was 176.2MB in the beginning and 295.7MB in the end (delta: 119.5MB). Free memory was 119.3MB in the beginning and 138.6MB in the end (delta: -19.3MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,452 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:01:43,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.63ms. Allocated memory is still 176.2MB. Free memory was 118.8MB in the beginning and 105.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.69ms. Allocated memory is still 176.2MB. Free memory was 105.0MB in the beginning and 103.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,452 INFO L158 Benchmark]: Boogie Preprocessor took 59.20ms. Allocated memory is still 176.2MB. Free memory was 103.0MB in the beginning and 100.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,453 INFO L158 Benchmark]: RCFGBuilder took 805.11ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 100.4MB in the beginning and 197.7MB in the end (delta: -97.3MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,453 INFO L158 Benchmark]: TraceAbstraction took 5032.08ms. Allocated memory was 245.4MB in the beginning and 295.7MB in the end (delta: 50.3MB). Free memory was 196.6MB in the beginning and 143.9MB in the end (delta: 52.8MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,453 INFO L158 Benchmark]: Witness Printer took 97.16ms. Allocated memory is still 295.7MB. Free memory was 143.9MB in the beginning and 138.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:01:43,455 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 176.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.63ms. Allocated memory is still 176.2MB. Free memory was 118.8MB in the beginning and 105.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.69ms. Allocated memory is still 176.2MB. Free memory was 105.0MB in the beginning and 103.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.20ms. Allocated memory is still 176.2MB. Free memory was 103.0MB in the beginning and 100.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 805.11ms. Allocated memory was 176.2MB in the beginning and 245.4MB in the end (delta: 69.2MB). Free memory was 100.4MB in the beginning and 197.7MB in the end (delta: -97.3MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5032.08ms. Allocated memory was 245.4MB in the beginning and 295.7MB in the end (delta: 50.3MB). Free memory was 196.6MB in the beginning and 143.9MB in the end (delta: 52.8MB). Peak memory consumption was 103.1MB. Max. memory is 16.1GB. * Witness Printer took 97.16ms. Allocated memory is still 295.7MB. Free memory was 143.9MB in the beginning and 138.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 80]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 81]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 82]: 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, 115 locations, 26 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: 4.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 936 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 782 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1674 IncrementalHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 32 mSDtfsCounter, 1674 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=11, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-12 00:01:43,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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