./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:51:15,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:51:15,408 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:51:15,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:51:15,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:51:15,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:51:15,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:51:15,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:51:15,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:51:15,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:51:15,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:51:15,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:51:15,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:51:15,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:51:15,447 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:51:15,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:51:15,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:51:15,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:51:15,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:51:15,452 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:51:15,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:51:15,453 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:51:15,453 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:51:15,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:51:15,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:51:15,454 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:51:15,454 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:51:15,454 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:51:15,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:51:15,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:51:15,455 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:51:15,456 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:51:15,456 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:51:15,456 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:51:15,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:51:15,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:51:15,457 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:51:15,457 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:51:15,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:51:15,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:51:15,458 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:51:15,458 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:51:15,459 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:51:15,459 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:51:15,459 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2024-11-17 07:51:15,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:51:15,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:51:15,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:51:15,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:51:15,749 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:51:15,750 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2024-11-17 07:51:17,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:51:17,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:51:17,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2024-11-17 07:51:17,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e0e769fc/299f07f69c6e4156a930ff4c504305ed/FLAGaaadc6660 [2024-11-17 07:51:17,499 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e0e769fc/299f07f69c6e4156a930ff4c504305ed [2024-11-17 07:51:17,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:51:17,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:51:17,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:51:17,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:51:17,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:51:17,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,515 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb6043b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17, skipping insertion in model container [2024-11-17 07:51:17,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,541 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:51:17,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:51:17,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:51:17,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:51:17,857 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:51:17,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17 WrapperNode [2024-11-17 07:51:17,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:51:17,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:51:17,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:51:17,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:51:17,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,881 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,910 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 171 [2024-11-17 07:51:17,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:51:17,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:51:17,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:51:17,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:51:17,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,943 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 07:51:17,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,948 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:51:17,954 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:51:17,954 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:51:17,954 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:51:17,959 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (1/1) ... [2024-11-17 07:51:17,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:51:17,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:51:17,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:51:17,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:51:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:51:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:51:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:51:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:51:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:51:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:51:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:51:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:51:18,050 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:51:18,140 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:51:18,143 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:51:18,570 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:51:18,570 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:51:18,831 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:51:18,831 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:51:18,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:18 BoogieIcfgContainer [2024-11-17 07:51:18,832 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:51:18,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:51:18,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:51:18,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:51:18,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:51:17" (1/3) ... [2024-11-17 07:51:18,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4928d09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:51:18, skipping insertion in model container [2024-11-17 07:51:18,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:51:17" (2/3) ... [2024-11-17 07:51:18,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4928d09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:51:18, skipping insertion in model container [2024-11-17 07:51:18,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:18" (3/3) ... [2024-11-17 07:51:18,839 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2024-11-17 07:51:18,860 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:51:18,860 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-17 07:51:18,860 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:51:18,938 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:51:18,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 67 places, 72 transitions, 158 flow [2024-11-17 07:51:19,017 INFO L124 PetriNetUnfolderBase]: 12/70 cut-off events. [2024-11-17 07:51:19,018 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:51:19,023 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 219 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. [2024-11-17 07:51:19,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 67 places, 72 transitions, 158 flow [2024-11-17 07:51:19,027 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 68 transitions, 145 flow [2024-11-17 07:51:19,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:51:19,050 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;@66576e17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:51:19,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-17 07:51:19,065 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:51:19,065 INFO L124 PetriNetUnfolderBase]: 6/34 cut-off events. [2024-11-17 07:51:19,065 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:51:19,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:19,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:19,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:19,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1226296478, now seen corresponding path program 1 times [2024-11-17 07:51:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:19,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638465968] [2024-11-17 07:51:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:19,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:19,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638465968] [2024-11-17 07:51:19,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638465968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:19,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:19,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:19,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627099718] [2024-11-17 07:51:19,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:19,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:19,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:19,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-11-17 07:51:19,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:19,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:19,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-11-17 07:51:19,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:19,989 INFO L124 PetriNetUnfolderBase]: 775/1531 cut-off events. [2024-11-17 07:51:19,990 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-17 07:51:20,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2754 conditions, 1531 events. 775/1531 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 10507 event pairs, 282 based on Foata normal form. 48/1246 useless extension candidates. Maximal degree in co-relation 2685. Up to 647 conditions per place. [2024-11-17 07:51:20,014 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 60 selfloop transitions, 5 changer transitions 0/99 dead transitions. [2024-11-17 07:51:20,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 99 transitions, 343 flow [2024-11-17 07:51:20,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:20,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2024-11-17 07:51:20,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2024-11-17 07:51:20,033 INFO L175 Difference]: Start difference. First operand has 63 places, 68 transitions, 145 flow. Second operand 4 states and 212 transitions. [2024-11-17 07:51:20,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 99 transitions, 343 flow [2024-11-17 07:51:20,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 99 transitions, 336 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:20,047 INFO L231 Difference]: Finished difference. Result has 65 places, 70 transitions, 174 flow [2024-11-17 07:51:20,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=174, PETRI_PLACES=65, PETRI_TRANSITIONS=70} [2024-11-17 07:51:20,056 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 2 predicate places. [2024-11-17 07:51:20,056 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 70 transitions, 174 flow [2024-11-17 07:51:20,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:20,057 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:20,057 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:20,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:51:20,058 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:20,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:20,058 INFO L85 PathProgramCache]: Analyzing trace with hash -639514386, now seen corresponding path program 1 times [2024-11-17 07:51:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:20,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520313549] [2024-11-17 07:51:20,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:20,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:20,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:20,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:20,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520313549] [2024-11-17 07:51:20,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520313549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:20,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:20,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:20,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083597072] [2024-11-17 07:51:20,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:20,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:20,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:20,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:20,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2024-11-17 07:51:20,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 70 transitions, 174 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) [2024-11-17 07:51:20,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:20,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2024-11-17 07:51:20,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:20,491 INFO L124 PetriNetUnfolderBase]: 591/1348 cut-off events. [2024-11-17 07:51:20,492 INFO L125 PetriNetUnfolderBase]: For 307/309 co-relation queries the response was YES. [2024-11-17 07:51:20,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2593 conditions, 1348 events. 591/1348 cut-off events. For 307/309 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9749 event pairs, 177 based on Foata normal form. 2/1140 useless extension candidates. Maximal degree in co-relation 1872. Up to 469 conditions per place. [2024-11-17 07:51:20,503 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 41 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-11-17 07:51:20,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 83 transitions, 292 flow [2024-11-17 07:51:20,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:20,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2024-11-17 07:51:20,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-17 07:51:20,507 INFO L175 Difference]: Start difference. First operand has 65 places, 70 transitions, 174 flow. Second operand 4 states and 200 transitions. [2024-11-17 07:51:20,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 83 transitions, 292 flow [2024-11-17 07:51:20,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 83 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:51:20,516 INFO L231 Difference]: Finished difference. Result has 67 places, 69 transitions, 180 flow [2024-11-17 07:51:20,516 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=67, PETRI_TRANSITIONS=69} [2024-11-17 07:51:20,518 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-11-17 07:51:20,518 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 69 transitions, 180 flow [2024-11-17 07:51:20,519 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) [2024-11-17 07:51:20,519 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:20,519 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:20,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:51:20,519 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:20,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:20,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1649860226, now seen corresponding path program 1 times [2024-11-17 07:51:20,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:20,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855778294] [2024-11-17 07:51:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:20,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:20,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:20,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:20,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855778294] [2024-11-17 07:51:20,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855778294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:20,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:20,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:20,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127369509] [2024-11-17 07:51:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:20,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:20,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:20,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:20,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:20,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2024-11-17 07:51:20,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 69 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:20,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:20,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2024-11-17 07:51:20,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:20,838 INFO L124 PetriNetUnfolderBase]: 593/1328 cut-off events. [2024-11-17 07:51:20,839 INFO L125 PetriNetUnfolderBase]: For 567/569 co-relation queries the response was YES. [2024-11-17 07:51:20,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2651 conditions, 1328 events. 593/1328 cut-off events. For 567/569 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 9440 event pairs, 177 based on Foata normal form. 26/1144 useless extension candidates. Maximal degree in co-relation 1924. Up to 493 conditions per place. [2024-11-17 07:51:20,848 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 42 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2024-11-17 07:51:20,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 82 transitions, 298 flow [2024-11-17 07:51:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:20,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2024-11-17 07:51:20,851 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2024-11-17 07:51:20,854 INFO L175 Difference]: Start difference. First operand has 67 places, 69 transitions, 180 flow. Second operand 4 states and 196 transitions. [2024-11-17 07:51:20,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 82 transitions, 298 flow [2024-11-17 07:51:20,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 82 transitions, 290 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:20,859 INFO L231 Difference]: Finished difference. Result has 66 places, 68 transitions, 176 flow [2024-11-17 07:51:20,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=66, PETRI_TRANSITIONS=68} [2024-11-17 07:51:20,860 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2024-11-17 07:51:20,860 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 68 transitions, 176 flow [2024-11-17 07:51:20,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:20,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:20,861 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:20,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:51:20,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:20,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:20,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1455531379, now seen corresponding path program 1 times [2024-11-17 07:51:20,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:20,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935082390] [2024-11-17 07:51:20,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:20,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:20,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:20,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:20,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935082390] [2024-11-17 07:51:20,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935082390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:20,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:20,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:20,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127444480] [2024-11-17 07:51:20,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:20,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:20,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:20,999 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-11-17 07:51:21,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 176 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) [2024-11-17 07:51:21,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:21,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-11-17 07:51:21,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:21,229 INFO L124 PetriNetUnfolderBase]: 914/1865 cut-off events. [2024-11-17 07:51:21,229 INFO L125 PetriNetUnfolderBase]: For 755/790 co-relation queries the response was YES. [2024-11-17 07:51:21,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3753 conditions, 1865 events. 914/1865 cut-off events. For 755/790 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 13465 event pairs, 356 based on Foata normal form. 89/1605 useless extension candidates. Maximal degree in co-relation 2214. Up to 788 conditions per place. [2024-11-17 07:51:21,243 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 64 selfloop transitions, 5 changer transitions 0/101 dead transitions. [2024-11-17 07:51:21,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 430 flow [2024-11-17 07:51:21,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:21,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-11-17 07:51:21,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-17 07:51:21,246 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 176 flow. Second operand 4 states and 210 transitions. [2024-11-17 07:51:21,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 430 flow [2024-11-17 07:51:21,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 101 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:21,253 INFO L231 Difference]: Finished difference. Result has 68 places, 70 transitions, 202 flow [2024-11-17 07:51:21,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=68, PETRI_TRANSITIONS=70} [2024-11-17 07:51:21,255 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2024-11-17 07:51:21,255 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 70 transitions, 202 flow [2024-11-17 07:51:21,256 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) [2024-11-17 07:51:21,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:21,256 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:21,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:51:21,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:21,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:21,258 INFO L85 PathProgramCache]: Analyzing trace with hash -393941072, now seen corresponding path program 1 times [2024-11-17 07:51:21,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:21,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465519330] [2024-11-17 07:51:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:21,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:21,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:21,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465519330] [2024-11-17 07:51:21,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465519330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:21,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:21,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:21,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045760517] [2024-11-17 07:51:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:21,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:21,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:21,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:21,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:21,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2024-11-17 07:51:21,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 70 transitions, 202 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) [2024-11-17 07:51:21,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:21,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2024-11-17 07:51:21,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:21,662 INFO L124 PetriNetUnfolderBase]: 922/1829 cut-off events. [2024-11-17 07:51:21,663 INFO L125 PetriNetUnfolderBase]: For 643/694 co-relation queries the response was YES. [2024-11-17 07:51:21,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4019 conditions, 1829 events. 922/1829 cut-off events. For 643/694 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 12885 event pairs, 211 based on Foata normal form. 26/1685 useless extension candidates. Maximal degree in co-relation 2966. Up to 685 conditions per place. [2024-11-17 07:51:21,677 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 62 selfloop transitions, 6 changer transitions 0/101 dead transitions. [2024-11-17 07:51:21,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 101 transitions, 440 flow [2024-11-17 07:51:21,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:21,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 247 transitions. [2024-11-17 07:51:21,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6861111111111111 [2024-11-17 07:51:21,679 INFO L175 Difference]: Start difference. First operand has 68 places, 70 transitions, 202 flow. Second operand 5 states and 247 transitions. [2024-11-17 07:51:21,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 101 transitions, 440 flow [2024-11-17 07:51:21,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 101 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:51:21,686 INFO L231 Difference]: Finished difference. Result has 71 places, 69 transitions, 212 flow [2024-11-17 07:51:21,686 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2024-11-17 07:51:21,688 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2024-11-17 07:51:21,688 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 212 flow [2024-11-17 07:51:21,688 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) [2024-11-17 07:51:21,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:21,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:21,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:51:21,690 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:21,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:21,691 INFO L85 PathProgramCache]: Analyzing trace with hash -393940079, now seen corresponding path program 1 times [2024-11-17 07:51:21,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:21,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626037288] [2024-11-17 07:51:21,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:21,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:21,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:21,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:21,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626037288] [2024-11-17 07:51:21,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626037288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:21,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:21,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:21,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61697970] [2024-11-17 07:51:21,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:21,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:21,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:21,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:21,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:21,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-11-17 07:51:21,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 212 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) [2024-11-17 07:51:21,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:21,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-11-17 07:51:21,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:22,002 INFO L124 PetriNetUnfolderBase]: 761/1713 cut-off events. [2024-11-17 07:51:22,003 INFO L125 PetriNetUnfolderBase]: For 1040/1073 co-relation queries the response was YES. [2024-11-17 07:51:22,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3717 conditions, 1713 events. 761/1713 cut-off events. For 1040/1073 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 12678 event pairs, 363 based on Foata normal form. 46/1546 useless extension candidates. Maximal degree in co-relation 2335. Up to 771 conditions per place. [2024-11-17 07:51:22,014 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 64 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2024-11-17 07:51:22,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 101 transitions, 448 flow [2024-11-17 07:51:22,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 207 transitions. [2024-11-17 07:51:22,016 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.71875 [2024-11-17 07:51:22,016 INFO L175 Difference]: Start difference. First operand has 71 places, 69 transitions, 212 flow. Second operand 4 states and 207 transitions. [2024-11-17 07:51:22,017 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 101 transitions, 448 flow [2024-11-17 07:51:22,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 101 transitions, 436 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:22,021 INFO L231 Difference]: Finished difference. Result has 70 places, 68 transitions, 202 flow [2024-11-17 07:51:22,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=70, PETRI_TRANSITIONS=68} [2024-11-17 07:51:22,022 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-11-17 07:51:22,023 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 68 transitions, 202 flow [2024-11-17 07:51:22,023 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) [2024-11-17 07:51:22,023 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:22,023 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:22,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:51:22,024 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:22,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:22,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2123167998, now seen corresponding path program 1 times [2024-11-17 07:51:22,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:22,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664264951] [2024-11-17 07:51:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:22,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:22,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:22,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664264951] [2024-11-17 07:51:22,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664264951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:22,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:22,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:22,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582354585] [2024-11-17 07:51:22,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:22,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:22,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:22,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:22,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:22,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 72 [2024-11-17 07:51:22,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 68 transitions, 202 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) [2024-11-17 07:51:22,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:22,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 72 [2024-11-17 07:51:22,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:22,270 INFO L124 PetriNetUnfolderBase]: 716/1661 cut-off events. [2024-11-17 07:51:22,271 INFO L125 PetriNetUnfolderBase]: For 859/885 co-relation queries the response was YES. [2024-11-17 07:51:22,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3459 conditions, 1661 events. 716/1661 cut-off events. For 859/885 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12470 event pairs, 225 based on Foata normal form. 26/1474 useless extension candidates. Maximal degree in co-relation 2155. Up to 524 conditions per place. [2024-11-17 07:51:22,283 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 44 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2024-11-17 07:51:22,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 82 transitions, 350 flow [2024-11-17 07:51:22,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:22,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2024-11-17 07:51:22,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6909722222222222 [2024-11-17 07:51:22,285 INFO L175 Difference]: Start difference. First operand has 70 places, 68 transitions, 202 flow. Second operand 4 states and 199 transitions. [2024-11-17 07:51:22,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 82 transitions, 350 flow [2024-11-17 07:51:22,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:22,291 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 202 flow [2024-11-17 07:51:22,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2024-11-17 07:51:22,293 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-11-17 07:51:22,293 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 202 flow [2024-11-17 07:51:22,294 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) [2024-11-17 07:51:22,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:22,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:22,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:51:22,295 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:22,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:22,296 INFO L85 PathProgramCache]: Analyzing trace with hash 672729125, now seen corresponding path program 1 times [2024-11-17 07:51:22,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:22,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360508924] [2024-11-17 07:51:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:22,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:22,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360508924] [2024-11-17 07:51:22,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360508924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:22,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:22,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:22,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310110818] [2024-11-17 07:51:22,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:22,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:22,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:22,458 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2024-11-17 07:51:22,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 202 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) [2024-11-17 07:51:22,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:22,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2024-11-17 07:51:22,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:22,787 INFO L124 PetriNetUnfolderBase]: 894/1765 cut-off events. [2024-11-17 07:51:22,787 INFO L125 PetriNetUnfolderBase]: For 1109/1161 co-relation queries the response was YES. [2024-11-17 07:51:22,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 1765 events. 894/1765 cut-off events. For 1109/1161 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 12424 event pairs, 210 based on Foata normal form. 83/1678 useless extension candidates. Maximal degree in co-relation 2932. Up to 481 conditions per place. [2024-11-17 07:51:22,799 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 75 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2024-11-17 07:51:22,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 544 flow [2024-11-17 07:51:22,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:22,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:22,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 279 transitions. [2024-11-17 07:51:22,801 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-11-17 07:51:22,801 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 202 flow. Second operand 6 states and 279 transitions. [2024-11-17 07:51:22,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 544 flow [2024-11-17 07:51:22,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 115 transitions, 518 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:51:22,806 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 219 flow [2024-11-17 07:51:22,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=219, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2024-11-17 07:51:22,807 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2024-11-17 07:51:22,807 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 219 flow [2024-11-17 07:51:22,808 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) [2024-11-17 07:51:22,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:22,808 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:22,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:51:22,808 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:22,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1393668241, now seen corresponding path program 1 times [2024-11-17 07:51:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314965657] [2024-11-17 07:51:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:22,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:22,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314965657] [2024-11-17 07:51:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314965657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:22,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:22,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:51:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128122157] [2024-11-17 07:51:22,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:22,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:22,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:22,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:22,871 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 72 [2024-11-17 07:51:22,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:22,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:22,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 72 [2024-11-17 07:51:22,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:23,051 INFO L124 PetriNetUnfolderBase]: 717/1621 cut-off events. [2024-11-17 07:51:23,051 INFO L125 PetriNetUnfolderBase]: For 1707/1787 co-relation queries the response was YES. [2024-11-17 07:51:23,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3649 conditions, 1621 events. 717/1621 cut-off events. For 1707/1787 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11906 event pairs, 226 based on Foata normal form. 93/1516 useless extension candidates. Maximal degree in co-relation 2234. Up to 551 conditions per place. [2024-11-17 07:51:23,064 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 47 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2024-11-17 07:51:23,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 82 transitions, 385 flow [2024-11-17 07:51:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:23,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 195 transitions. [2024-11-17 07:51:23,066 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2024-11-17 07:51:23,066 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 219 flow. Second operand 4 states and 195 transitions. [2024-11-17 07:51:23,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 82 transitions, 385 flow [2024-11-17 07:51:23,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 82 transitions, 363 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:23,071 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 210 flow [2024-11-17 07:51:23,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-11-17 07:51:23,073 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-11-17 07:51:23,073 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 210 flow [2024-11-17 07:51:23,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:51:23,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:23,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:23,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:51:23,074 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:23,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:23,075 INFO L85 PathProgramCache]: Analyzing trace with hash 298455799, now seen corresponding path program 1 times [2024-11-17 07:51:23,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:23,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125059914] [2024-11-17 07:51:23,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:23,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:23,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125059914] [2024-11-17 07:51:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125059914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:23,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:23,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:23,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896156146] [2024-11-17 07:51:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:23,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:23,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:23,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:23,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:23,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-11-17 07:51:23,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 210 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) [2024-11-17 07:51:23,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:23,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-11-17 07:51:23,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:23,379 INFO L124 PetriNetUnfolderBase]: 899/1775 cut-off events. [2024-11-17 07:51:23,380 INFO L125 PetriNetUnfolderBase]: For 1554/1599 co-relation queries the response was YES. [2024-11-17 07:51:23,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4136 conditions, 1775 events. 899/1775 cut-off events. For 1554/1599 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 12432 event pairs, 360 based on Foata normal form. 73/1648 useless extension candidates. Maximal degree in co-relation 2559. Up to 793 conditions per place. [2024-11-17 07:51:23,392 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 63 selfloop transitions, 5 changer transitions 0/98 dead transitions. [2024-11-17 07:51:23,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 98 transitions, 461 flow [2024-11-17 07:51:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:23,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:23,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-11-17 07:51:23,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2024-11-17 07:51:23,394 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 210 flow. Second operand 4 states and 205 transitions. [2024-11-17 07:51:23,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 98 transitions, 461 flow [2024-11-17 07:51:23,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 98 transitions, 438 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:23,398 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 212 flow [2024-11-17 07:51:23,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-11-17 07:51:23,399 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 6 predicate places. [2024-11-17 07:51:23,399 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 212 flow [2024-11-17 07:51:23,400 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) [2024-11-17 07:51:23,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:23,400 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:23,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:51:23,400 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:23,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:23,401 INFO L85 PathProgramCache]: Analyzing trace with hash 254042016, now seen corresponding path program 1 times [2024-11-17 07:51:23,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:23,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63509005] [2024-11-17 07:51:23,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:23,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:23,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:23,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:23,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63509005] [2024-11-17 07:51:23,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63509005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:23,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:23,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:23,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951328206] [2024-11-17 07:51:23,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:23,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:23,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:23,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:23,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:23,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 72 [2024-11-17 07:51:23,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 212 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) [2024-11-17 07:51:23,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:23,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 72 [2024-11-17 07:51:23,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:23,743 INFO L124 PetriNetUnfolderBase]: 999/1903 cut-off events. [2024-11-17 07:51:23,743 INFO L125 PetriNetUnfolderBase]: For 1875/1971 co-relation queries the response was YES. [2024-11-17 07:51:23,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4629 conditions, 1903 events. 999/1903 cut-off events. For 1875/1971 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12928 event pairs, 244 based on Foata normal form. 96/1843 useless extension candidates. Maximal degree in co-relation 3647. Up to 713 conditions per place. [2024-11-17 07:51:23,756 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 66 selfloop transitions, 6 changer transitions 0/99 dead transitions. [2024-11-17 07:51:23,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 99 transitions, 498 flow [2024-11-17 07:51:23,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:51:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:51:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 245 transitions. [2024-11-17 07:51:23,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2024-11-17 07:51:23,758 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 212 flow. Second operand 5 states and 245 transitions. [2024-11-17 07:51:23,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 99 transitions, 498 flow [2024-11-17 07:51:23,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:51:23,763 INFO L231 Difference]: Finished difference. Result has 71 places, 65 transitions, 218 flow [2024-11-17 07:51:23,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=218, PETRI_PLACES=71, PETRI_TRANSITIONS=65} [2024-11-17 07:51:23,764 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 8 predicate places. [2024-11-17 07:51:23,764 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 65 transitions, 218 flow [2024-11-17 07:51:23,764 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) [2024-11-17 07:51:23,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:23,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:23,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:51:23,765 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:23,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:23,765 INFO L85 PathProgramCache]: Analyzing trace with hash 254043009, now seen corresponding path program 1 times [2024-11-17 07:51:23,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:23,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862019864] [2024-11-17 07:51:23,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:23,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:23,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:23,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:23,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862019864] [2024-11-17 07:51:23,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862019864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:23,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:23,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:51:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191729267] [2024-11-17 07:51:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:23,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:51:23,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:23,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:51:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:51:23,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 72 [2024-11-17 07:51:23,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 65 transitions, 218 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) [2024-11-17 07:51:23,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:23,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 72 [2024-11-17 07:51:23,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:24,045 INFO L124 PetriNetUnfolderBase]: 829/1743 cut-off events. [2024-11-17 07:51:24,045 INFO L125 PetriNetUnfolderBase]: For 1757/1833 co-relation queries the response was YES. [2024-11-17 07:51:24,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4117 conditions, 1743 events. 829/1743 cut-off events. For 1757/1833 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 12462 event pairs, 408 based on Foata normal form. 105/1692 useless extension candidates. Maximal degree in co-relation 3265. Up to 852 conditions per place. [2024-11-17 07:51:24,058 INFO L140 encePairwiseOnDemand]: 67/72 looper letters, 68 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2024-11-17 07:51:24,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 99 transitions, 494 flow [2024-11-17 07:51:24,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:51:24,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:51:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-11-17 07:51:24,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7118055555555556 [2024-11-17 07:51:24,061 INFO L175 Difference]: Start difference. First operand has 71 places, 65 transitions, 218 flow. Second operand 4 states and 205 transitions. [2024-11-17 07:51:24,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 99 transitions, 494 flow [2024-11-17 07:51:24,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 99 transitions, 482 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:51:24,065 INFO L231 Difference]: Finished difference. Result has 70 places, 64 transitions, 208 flow [2024-11-17 07:51:24,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=70, PETRI_TRANSITIONS=64} [2024-11-17 07:51:24,067 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-11-17 07:51:24,068 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 64 transitions, 208 flow [2024-11-17 07:51:24,068 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) [2024-11-17 07:51:24,068 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:24,068 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:24,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:51:24,068 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:24,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:24,069 INFO L85 PathProgramCache]: Analyzing trace with hash -714631596, now seen corresponding path program 1 times [2024-11-17 07:51:24,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:24,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430959754] [2024-11-17 07:51:24,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:24,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:24,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:24,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:24,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430959754] [2024-11-17 07:51:24,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430959754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:24,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:24,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:51:24,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329297877] [2024-11-17 07:51:24,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:24,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:51:24,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:24,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:51:24,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:51:24,192 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2024-11-17 07:51:24,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 64 transitions, 208 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) [2024-11-17 07:51:24,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:24,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2024-11-17 07:51:24,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:24,461 INFO L124 PetriNetUnfolderBase]: 970/1845 cut-off events. [2024-11-17 07:51:24,461 INFO L125 PetriNetUnfolderBase]: For 1763/1859 co-relation queries the response was YES. [2024-11-17 07:51:24,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 1845 events. 970/1845 cut-off events. For 1763/1859 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 12482 event pairs, 244 based on Foata normal form. 154/1843 useless extension candidates. Maximal degree in co-relation 3546. Up to 547 conditions per place. [2024-11-17 07:51:24,473 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 80 selfloop transitions, 9 changer transitions 0/115 dead transitions. [2024-11-17 07:51:24,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 590 flow [2024-11-17 07:51:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:24,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:24,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 276 transitions. [2024-11-17 07:51:24,475 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-17 07:51:24,475 INFO L175 Difference]: Start difference. First operand has 70 places, 64 transitions, 208 flow. Second operand 6 states and 276 transitions. [2024-11-17 07:51:24,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 590 flow [2024-11-17 07:51:24,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 115 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:51:24,481 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 227 flow [2024-11-17 07:51:24,481 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=67, 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=227, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-11-17 07:51:24,482 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 10 predicate places. [2024-11-17 07:51:24,482 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 227 flow [2024-11-17 07:51:24,483 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) [2024-11-17 07:51:24,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:51:24,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:24,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:51:24,483 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-17 07:51:24,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:51:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 239946439, now seen corresponding path program 1 times [2024-11-17 07:51:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:51:24,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699462832] [2024-11-17 07:51:24,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:51:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:51:24,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:51:24,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:51:24,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699462832] [2024-11-17 07:51:24,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699462832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:51:24,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:51:24,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:51:24,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774921337] [2024-11-17 07:51:24,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:51:24,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:51:24,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:51:24,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:51:24,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:51:24,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 72 [2024-11-17 07:51:24,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 227 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) [2024-11-17 07:51:24,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:51:24,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 72 [2024-11-17 07:51:24,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:51:24,880 INFO L124 PetriNetUnfolderBase]: 970/1770 cut-off events. [2024-11-17 07:51:24,880 INFO L125 PetriNetUnfolderBase]: For 2127/2221 co-relation queries the response was YES. [2024-11-17 07:51:24,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4677 conditions, 1770 events. 970/1770 cut-off events. For 2127/2221 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 11589 event pairs, 408 based on Foata normal form. 123/1791 useless extension candidates. Maximal degree in co-relation 3703. Up to 881 conditions per place. [2024-11-17 07:51:24,886 INFO L140 encePairwiseOnDemand]: 65/72 looper letters, 0 selfloop transitions, 0 changer transitions 133/133 dead transitions. [2024-11-17 07:51:24,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 133 transitions, 719 flow [2024-11-17 07:51:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:51:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:51:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 294 transitions. [2024-11-17 07:51:24,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6805555555555556 [2024-11-17 07:51:24,887 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 227 flow. Second operand 6 states and 294 transitions. [2024-11-17 07:51:24,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 133 transitions, 719 flow [2024-11-17 07:51:24,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 133 transitions, 701 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-17 07:51:24,895 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2024-11-17 07:51:24,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2024-11-17 07:51:24,896 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 9 predicate places. [2024-11-17 07:51:24,896 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2024-11-17 07:51:24,896 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) [2024-11-17 07:51:24,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 26 remaining) [2024-11-17 07:51:24,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-11-17 07:51:24,899 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-11-17 07:51:24,900 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 26 remaining) [2024-11-17 07:51:24,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-11-17 07:51:24,901 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-11-17 07:51:24,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-11-17 07:51:24,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-11-17 07:51:24,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-11-17 07:51:24,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 07:51:24,903 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:51:24,911 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:51:24,911 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:51:24,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:51:24 BasicIcfg [2024-11-17 07:51:24,917 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:51:24,917 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:51:24,917 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:51:24,917 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:51:24,918 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:51:18" (3/4) ... [2024-11-17 07:51:24,922 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:51:24,924 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:51:24,925 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:51:24,931 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2024-11-17 07:51:24,931 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-17 07:51:24,931 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-17 07:51:24,932 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 07:51:24,932 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 07:51:25,024 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:51:25,024 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:51:25,024 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:51:25,025 INFO L158 Benchmark]: Toolchain (without parser) took 7520.46ms. Allocated memory was 138.4MB in the beginning and 257.9MB in the end (delta: 119.5MB). Free memory was 66.5MB in the beginning and 118.5MB in the end (delta: -52.1MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,025 INFO L158 Benchmark]: CDTParser took 1.28ms. Allocated memory is still 138.4MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:51:25,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.53ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 66.2MB in the beginning and 148.1MB in the end (delta: -81.9MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.45ms. Allocated memory is still 178.3MB. Free memory was 148.1MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,026 INFO L158 Benchmark]: Boogie Preprocessor took 41.74ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 144.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,026 INFO L158 Benchmark]: IcfgBuilder took 877.55ms. Allocated memory is still 178.3MB. Free memory was 144.0MB in the beginning and 96.8MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,026 INFO L158 Benchmark]: TraceAbstraction took 6083.26ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 96.8MB in the beginning and 123.8MB in the end (delta: -27.0MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,027 INFO L158 Benchmark]: Witness Printer took 107.23ms. Allocated memory is still 257.9MB. Free memory was 122.7MB in the beginning and 118.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:51:25,028 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.28ms. Allocated memory is still 138.4MB. Free memory is still 99.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.53ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 66.2MB in the beginning and 148.1MB in the end (delta: -81.9MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.45ms. Allocated memory is still 178.3MB. Free memory was 148.1MB in the beginning and 146.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.74ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 144.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 877.55ms. Allocated memory is still 178.3MB. Free memory was 144.0MB in the beginning and 96.8MB in the end (delta: 47.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6083.26ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 96.8MB in the beginning and 123.8MB in the end (delta: -27.0MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * Witness Printer took 107.23ms. Allocated memory is still 257.9MB. Free memory was 122.7MB in the beginning and 118.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 5.9s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1077 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 877 mSDsluCounter, 132 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2010 IncrementalHoareTripleChecker+Invalid, 2081 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 44 mSDtfsCounter, 2010 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=13, InterpolantAutomatonStates: 64, 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, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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! [2024-11-17 07:51:25,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE