./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-exp-term-subst.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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:02:33,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:02:33,360 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:02:33,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:02:33,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:02:33,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:02:33,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:02:33,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:02:33,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:02:33,400 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:02:33,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:02:33,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:02:33,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:02:33,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:02:33,404 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:02:33,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:02:33,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:02:33,405 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:02:33,405 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:02:33,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:02:33,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:02:33,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:02:33,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:02:33,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:02:33,411 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:02:33,411 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:02:33,411 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:02:33,412 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:02:33,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:02:33,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:02:33,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:02:33,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:02:33,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:02:33,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:02:33,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:02:33,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:02:33,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:02:33,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:02:33,415 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:02:33,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:02:33,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:02:33,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:02:33,417 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:02:33,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:02:33,417 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2024-11-19 14:02:33,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:02:33,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:02:33,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:02:33,672 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:02:33,673 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:02:33,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-19 14:02:35,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:02:35,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:02:35,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-19 14:02:35,305 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3bd8d96/d01ef29083cc4ece85b45d54bbe51398/FLAG6570afde9 [2024-11-19 14:02:35,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3bd8d96/d01ef29083cc4ece85b45d54bbe51398 [2024-11-19 14:02:35,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:02:35,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:02:35,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:02:35,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:02:35,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:02:35,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d772452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35, skipping insertion in model container [2024-11-19 14:02:35,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:02:35,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:02:35,612 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:02:35,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:02:35,668 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:02:35,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35 WrapperNode [2024-11-19 14:02:35,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:02:35,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:02:35,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:02:35,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:02:35,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,758 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 213 [2024-11-19 14:02:35,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:02:35,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:02:35,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:02:35,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:02:35,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,836 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 14:02:35,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:02:35,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:02:35,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:02:35,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:02:35,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (1/1) ... [2024-11-19 14:02:35,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:02:35,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:02:35,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:02:35,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:02:35,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:02:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:02:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:02:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:02:35,952 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:02:35,952 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:02:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:02:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:02:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:02:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:02:35,955 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:02:36,089 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:02:36,091 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:02:36,589 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:02:36,589 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:02:36,812 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:02:36,812 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:02:36,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:36 BoogieIcfgContainer [2024-11-19 14:02:36,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:02:36,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:02:36,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:02:36,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:02:36,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:02:35" (1/3) ... [2024-11-19 14:02:36,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4910db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:36, skipping insertion in model container [2024-11-19 14:02:36,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:02:35" (2/3) ... [2024-11-19 14:02:36,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4910db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:02:36, skipping insertion in model container [2024-11-19 14:02:36,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:36" (3/3) ... [2024-11-19 14:02:36,823 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-11-19 14:02:36,839 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:02:36,840 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-19 14:02:36,841 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:02:36,934 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 14:02:36,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 217 flow [2024-11-19 14:02:37,031 INFO L124 PetriNetUnfolderBase]: 15/95 cut-off events. [2024-11-19 14:02:37,031 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 14:02:37,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 15/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 350 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-11-19 14:02:37,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 217 flow [2024-11-19 14:02:37,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 93 transitions, 201 flow [2024-11-19 14:02:37,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:02:37,064 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;@2fc231db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:02:37,064 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-19 14:02:37,072 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:02:37,073 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-11-19 14:02:37,073 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 14:02:37,073 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:37,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:37,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:37,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:37,082 INFO L85 PathProgramCache]: Analyzing trace with hash 107540757, now seen corresponding path program 1 times [2024-11-19 14:02:37,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:37,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181277787] [2024-11-19 14:02:37,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:37,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:37,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181277787] [2024-11-19 14:02:37,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181277787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:37,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:37,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288504838] [2024-11-19 14:02:37,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:37,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:37,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:37,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:37,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:02:37,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:37,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:37,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:02:37,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:39,681 INFO L124 PetriNetUnfolderBase]: 11126/17819 cut-off events. [2024-11-19 14:02:39,681 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2024-11-19 14:02:39,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32962 conditions, 17819 events. 11126/17819 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 141566 event pairs, 3987 based on Foata normal form. 444/15003 useless extension candidates. Maximal degree in co-relation 32117. Up to 7687 conditions per place. [2024-11-19 14:02:39,845 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 93 selfloop transitions, 5 changer transitions 0/146 dead transitions. [2024-11-19 14:02:39,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 515 flow [2024-11-19 14:02:39,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:39,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-11-19 14:02:39,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7780612244897959 [2024-11-19 14:02:39,861 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 201 flow. Second operand 4 states and 305 transitions. [2024-11-19 14:02:39,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 515 flow [2024-11-19 14:02:39,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 146 transitions, 500 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 14:02:39,902 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 226 flow [2024-11-19 14:02:39,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2024-11-19 14:02:39,909 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-11-19 14:02:39,909 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 226 flow [2024-11-19 14:02:39,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:39,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:39,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:39,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:02:39,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:39,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash -961203097, now seen corresponding path program 1 times [2024-11-19 14:02:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364749794] [2024-11-19 14:02:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:39,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:40,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:40,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:40,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364749794] [2024-11-19 14:02:40,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364749794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:40,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:40,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:02:40,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025450763] [2024-11-19 14:02:40,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:40,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:40,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:40,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:40,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:40,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-19 14:02:40,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:40,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:40,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-19 14:02:40,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:41,390 INFO L124 PetriNetUnfolderBase]: 8257/14973 cut-off events. [2024-11-19 14:02:41,392 INFO L125 PetriNetUnfolderBase]: For 2854/2874 co-relation queries the response was YES. [2024-11-19 14:02:41,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29073 conditions, 14973 events. 8257/14973 cut-off events. For 2854/2874 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 132562 event pairs, 2320 based on Foata normal form. 20/12961 useless extension candidates. Maximal degree in co-relation 16338. Up to 6222 conditions per place. [2024-11-19 14:02:41,515 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 63 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-11-19 14:02:41,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 411 flow [2024-11-19 14:02:41,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:41,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2024-11-19 14:02:41,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7193877551020408 [2024-11-19 14:02:41,519 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 226 flow. Second operand 4 states and 282 transitions. [2024-11-19 14:02:41,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 411 flow [2024-11-19 14:02:41,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 119 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:02:41,594 INFO L231 Difference]: Finished difference. Result has 90 places, 94 transitions, 232 flow [2024-11-19 14:02:41,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=90, PETRI_TRANSITIONS=94} [2024-11-19 14:02:41,595 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2024-11-19 14:02:41,596 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 94 transitions, 232 flow [2024-11-19 14:02:41,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:41,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:41,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:41,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:02:41,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:41,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash -476424384, now seen corresponding path program 1 times [2024-11-19 14:02:41,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:41,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171598038] [2024-11-19 14:02:41,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:41,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:41,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:41,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171598038] [2024-11-19 14:02:41,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171598038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:41,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:41,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:41,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130970982] [2024-11-19 14:02:41,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:41,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:41,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:41,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:41,749 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:02:41,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 94 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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) [2024-11-19 14:02:41,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:41,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:02:41,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:43,730 INFO L124 PetriNetUnfolderBase]: 13404/22500 cut-off events. [2024-11-19 14:02:43,730 INFO L125 PetriNetUnfolderBase]: For 7387/8100 co-relation queries the response was YES. [2024-11-19 14:02:43,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45221 conditions, 22500 events. 13404/22500 cut-off events. For 7387/8100 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 194633 event pairs, 4867 based on Foata normal form. 905/19695 useless extension candidates. Maximal degree in co-relation 26814. Up to 9225 conditions per place. [2024-11-19 14:02:43,913 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 97 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2024-11-19 14:02:43,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 149 transitions, 600 flow [2024-11-19 14:02:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:43,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-11-19 14:02:43,916 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7729591836734694 [2024-11-19 14:02:43,916 INFO L175 Difference]: Start difference. First operand has 90 places, 94 transitions, 232 flow. Second operand 4 states and 303 transitions. [2024-11-19 14:02:43,916 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 149 transitions, 600 flow [2024-11-19 14:02:44,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 149 transitions, 580 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:02:44,009 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 258 flow [2024-11-19 14:02:44,010 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2024-11-19 14:02:44,011 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-19 14:02:44,011 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 258 flow [2024-11-19 14:02:44,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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) [2024-11-19 14:02:44,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:44,011 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:44,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:02:44,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:44,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:44,013 INFO L85 PathProgramCache]: Analyzing trace with hash 267444025, now seen corresponding path program 1 times [2024-11-19 14:02:44,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:44,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981154079] [2024-11-19 14:02:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:44,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:44,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:44,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:44,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981154079] [2024-11-19 14:02:44,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981154079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:44,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:44,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:02:44,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135104150] [2024-11-19 14:02:44,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:44,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:44,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:44,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:44,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:44,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-19 14:02:44,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:44,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:44,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-19 14:02:44,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:45,479 INFO L124 PetriNetUnfolderBase]: 9856/18358 cut-off events. [2024-11-19 14:02:45,479 INFO L125 PetriNetUnfolderBase]: For 7482/8010 co-relation queries the response was YES. [2024-11-19 14:02:45,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37855 conditions, 18358 events. 9856/18358 cut-off events. For 7482/8010 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 170608 event pairs, 2826 based on Foata normal form. 542/16641 useless extension candidates. Maximal degree in co-relation 22936. Up to 7650 conditions per place. [2024-11-19 14:02:45,605 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 68 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-11-19 14:02:45,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 473 flow [2024-11-19 14:02:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-19 14:02:45,608 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2024-11-19 14:02:45,608 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 258 flow. Second operand 4 states and 278 transitions. [2024-11-19 14:02:45,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 473 flow [2024-11-19 14:02:45,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 122 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:02:45,691 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 262 flow [2024-11-19 14:02:45,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-11-19 14:02:45,692 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-19 14:02:45,692 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 262 flow [2024-11-19 14:02:45,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:45,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:45,693 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:45,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 14:02:45,693 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:45,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:45,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1884253256, now seen corresponding path program 1 times [2024-11-19 14:02:45,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:45,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387849904] [2024-11-19 14:02:45,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:45,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:45,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:45,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387849904] [2024-11-19 14:02:45,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387849904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:45,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:45,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:02:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883136336] [2024-11-19 14:02:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:45,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:45,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:45,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:45,791 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-19 14:02:45,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:45,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:45,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-19 14:02:45,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:47,127 INFO L124 PetriNetUnfolderBase]: 9875/18608 cut-off events. [2024-11-19 14:02:47,127 INFO L125 PetriNetUnfolderBase]: For 8821/9099 co-relation queries the response was YES. [2024-11-19 14:02:47,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38917 conditions, 18608 events. 9875/18608 cut-off events. For 8821/9099 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 175301 event pairs, 2742 based on Foata normal form. 278/16630 useless extension candidates. Maximal degree in co-relation 23741. Up to 7590 conditions per place. [2024-11-19 14:02:47,242 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 66 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-19 14:02:47,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 479 flow [2024-11-19 14:02:47,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-19 14:02:47,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7168367346938775 [2024-11-19 14:02:47,244 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 262 flow. Second operand 4 states and 281 transitions. [2024-11-19 14:02:47,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 479 flow [2024-11-19 14:02:47,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 120 transitions, 465 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:02:47,363 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 260 flow [2024-11-19 14:02:47,364 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=93, PETRI_TRANSITIONS=94} [2024-11-19 14:02:47,366 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-19 14:02:47,366 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 260 flow [2024-11-19 14:02:47,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:47,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:47,367 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:47,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:02:47,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:47,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash -299170103, now seen corresponding path program 1 times [2024-11-19 14:02:47,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:47,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995128115] [2024-11-19 14:02:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:47,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:47,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:47,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995128115] [2024-11-19 14:02:47,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995128115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:47,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:47,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:47,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125972356] [2024-11-19 14:02:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:47,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:02:47,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:47,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:02:47,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:02:47,493 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-19 14:02:47,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:47,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:47,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-19 14:02:47,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:49,028 INFO L124 PetriNetUnfolderBase]: 13504/21736 cut-off events. [2024-11-19 14:02:49,028 INFO L125 PetriNetUnfolderBase]: For 9450/10175 co-relation queries the response was YES. [2024-11-19 14:02:49,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48199 conditions, 21736 events. 13504/21736 cut-off events. For 9450/10175 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 178892 event pairs, 2750 based on Foata normal form. 365/20178 useless extension candidates. Maximal degree in co-relation 28750. Up to 9338 conditions per place. [2024-11-19 14:02:49,164 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 95 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-19 14:02:49,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 622 flow [2024-11-19 14:02:49,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:02:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:02:49,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2024-11-19 14:02:49,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-19 14:02:49,166 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 260 flow. Second operand 5 states and 355 transitions. [2024-11-19 14:02:49,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 622 flow [2024-11-19 14:02:49,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 147 transitions, 602 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:02:49,242 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 262 flow [2024-11-19 14:02:49,242 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2024-11-19 14:02:49,242 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-19 14:02:49,243 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 262 flow [2024-11-19 14:02:49,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:49,243 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:49,243 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:49,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:02:49,243 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:49,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:49,244 INFO L85 PathProgramCache]: Analyzing trace with hash -299169078, now seen corresponding path program 1 times [2024-11-19 14:02:49,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:49,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651114805] [2024-11-19 14:02:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:49,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:49,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:49,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651114805] [2024-11-19 14:02:49,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651114805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:49,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:49,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:49,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917305438] [2024-11-19 14:02:49,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:49,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:49,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:49,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:49,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:49,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:02:49,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:49,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:49,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:02:49,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:50,493 INFO L124 PetriNetUnfolderBase]: 10971/19600 cut-off events. [2024-11-19 14:02:50,494 INFO L125 PetriNetUnfolderBase]: For 10043/10625 co-relation queries the response was YES. [2024-11-19 14:02:50,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41971 conditions, 19600 events. 10971/19600 cut-off events. For 10043/10625 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 177042 event pairs, 5070 based on Foata normal form. 561/17937 useless extension candidates. Maximal degree in co-relation 25125. Up to 9302 conditions per place. [2024-11-19 14:02:50,602 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 97 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2024-11-19 14:02:50,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 610 flow [2024-11-19 14:02:50,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:50,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:50,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2024-11-19 14:02:50,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7653061224489796 [2024-11-19 14:02:50,604 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 262 flow. Second operand 4 states and 300 transitions. [2024-11-19 14:02:50,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 610 flow [2024-11-19 14:02:50,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 147 transitions, 598 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:02:50,821 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 252 flow [2024-11-19 14:02:50,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2024-11-19 14:02:50,821 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-19 14:02:50,822 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 252 flow [2024-11-19 14:02:50,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:50,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:50,822 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:50,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:02:50,822 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:50,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1717660196, now seen corresponding path program 1 times [2024-11-19 14:02:50,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665115061] [2024-11-19 14:02:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:50,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:50,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:50,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:50,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665115061] [2024-11-19 14:02:50,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665115061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:50,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:50,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:02:50,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063521396] [2024-11-19 14:02:50,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:50,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:50,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:50,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:50,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:50,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-19 14:02:50,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:50,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:50,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-19 14:02:50,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:52,099 INFO L124 PetriNetUnfolderBase]: 9894/18268 cut-off events. [2024-11-19 14:02:52,100 INFO L125 PetriNetUnfolderBase]: For 8863/9141 co-relation queries the response was YES. [2024-11-19 14:02:52,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38362 conditions, 18268 events. 9894/18268 cut-off events. For 8863/9141 co-relation queries the response was YES. Maximal size of possible extension queue 1113. Compared 168152 event pairs, 2742 based on Foata normal form. 552/16669 useless extension candidates. Maximal degree in co-relation 23634. Up to 7864 conditions per place. [2024-11-19 14:02:52,187 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 67 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-11-19 14:02:52,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 117 transitions, 468 flow [2024-11-19 14:02:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-11-19 14:02:52,188 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066326530612245 [2024-11-19 14:02:52,188 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 252 flow. Second operand 4 states and 277 transitions. [2024-11-19 14:02:52,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 117 transitions, 468 flow [2024-11-19 14:02:52,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:02:52,265 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 250 flow [2024-11-19 14:02:52,266 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-11-19 14:02:52,266 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-19 14:02:52,266 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 250 flow [2024-11-19 14:02:52,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:52,267 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:52,267 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:52,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 14:02:52,267 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:52,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1182408726, now seen corresponding path program 1 times [2024-11-19 14:02:52,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:52,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492701734] [2024-11-19 14:02:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:52,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:52,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492701734] [2024-11-19 14:02:52,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492701734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:52,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:52,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:52,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654872905] [2024-11-19 14:02:52,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:52,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:52,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:52,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:52,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:52,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:02:52,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 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) [2024-11-19 14:02:52,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:52,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:02:52,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:53,919 INFO L124 PetriNetUnfolderBase]: 15804/26988 cut-off events. [2024-11-19 14:02:53,920 INFO L125 PetriNetUnfolderBase]: For 14945/15787 co-relation queries the response was YES. [2024-11-19 14:02:54,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57392 conditions, 26988 events. 15804/26988 cut-off events. For 14945/15787 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 243981 event pairs, 6214 based on Foata normal form. 1444/24795 useless extension candidates. Maximal degree in co-relation 35440. Up to 11473 conditions per place. [2024-11-19 14:02:54,141 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 101 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-19 14:02:54,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 148 transitions, 664 flow [2024-11-19 14:02:54,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:54,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-11-19 14:02:54,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2024-11-19 14:02:54,143 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 250 flow. Second operand 4 states and 301 transitions. [2024-11-19 14:02:54,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 148 transitions, 664 flow [2024-11-19 14:02:54,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 148 transitions, 644 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:02:54,208 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 276 flow [2024-11-19 14:02:54,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2024-11-19 14:02:54,209 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-19 14:02:54,209 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 276 flow [2024-11-19 14:02:54,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 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) [2024-11-19 14:02:54,209 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:54,209 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:54,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 14:02:54,210 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:54,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:54,210 INFO L85 PathProgramCache]: Analyzing trace with hash -684337860, now seen corresponding path program 1 times [2024-11-19 14:02:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:54,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928854235] [2024-11-19 14:02:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:54,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:54,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928854235] [2024-11-19 14:02:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928854235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:54,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:02:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183677922] [2024-11-19 14:02:54,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:54,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:02:54,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:54,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:02:54,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:02:54,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-19 14:02:54,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:54,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:54,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-19 14:02:54,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:56,309 INFO L124 PetriNetUnfolderBase]: 15759/25783 cut-off events. [2024-11-19 14:02:56,309 INFO L125 PetriNetUnfolderBase]: For 14612/15690 co-relation queries the response was YES. [2024-11-19 14:02:56,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59311 conditions, 25783 events. 15759/25783 cut-off events. For 14612/15690 co-relation queries the response was YES. Maximal size of possible extension queue 1493. Compared 222062 event pairs, 3433 based on Foata normal form. 1404/25374 useless extension candidates. Maximal degree in co-relation 37778. Up to 6544 conditions per place. [2024-11-19 14:02:56,497 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 127 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-11-19 14:02:56,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 180 transitions, 839 flow [2024-11-19 14:02:56,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:02:56,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:02:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2024-11-19 14:02:56,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-19 14:02:56,499 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 276 flow. Second operand 6 states and 413 transitions. [2024-11-19 14:02:56,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 180 transitions, 839 flow [2024-11-19 14:02:56,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 180 transitions, 839 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:02:56,589 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 301 flow [2024-11-19 14:02:56,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-11-19 14:02:56,590 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-19 14:02:56,590 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 301 flow [2024-11-19 14:02:56,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:56,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:56,591 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:56,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 14:02:56,591 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:56,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:56,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1707858266, now seen corresponding path program 1 times [2024-11-19 14:02:56,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:56,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265393849] [2024-11-19 14:02:56,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:56,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:56,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:56,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:56,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265393849] [2024-11-19 14:02:56,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265393849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:56,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:56,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:56,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823138039] [2024-11-19 14:02:56,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:56,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:02:56,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:56,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:02:56,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:02:56,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-19 14:02:56,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:56,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:56,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-19 14:02:56,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:58,541 INFO L124 PetriNetUnfolderBase]: 16215/26324 cut-off events. [2024-11-19 14:02:58,541 INFO L125 PetriNetUnfolderBase]: For 24726/26909 co-relation queries the response was YES. [2024-11-19 14:02:58,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64726 conditions, 26324 events. 16215/26324 cut-off events. For 24726/26909 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 223839 event pairs, 3315 based on Foata normal form. 1544/26285 useless extension candidates. Maximal degree in co-relation 41496. Up to 11286 conditions per place. [2024-11-19 14:02:58,786 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 102 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-19 14:02:58,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 150 transitions, 743 flow [2024-11-19 14:02:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:02:58,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:02:58,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2024-11-19 14:02:58,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7204081632653061 [2024-11-19 14:02:58,788 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 301 flow. Second operand 5 states and 353 transitions. [2024-11-19 14:02:58,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 150 transitions, 743 flow [2024-11-19 14:02:58,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 150 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:02:58,997 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 298 flow [2024-11-19 14:02:58,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-11-19 14:02:58,998 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-19 14:02:58,998 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 298 flow [2024-11-19 14:02:58,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:58,998 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:58,998 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:58,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 14:02:58,999 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:02:58,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:58,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1707859291, now seen corresponding path program 1 times [2024-11-19 14:02:59,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:59,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266323692] [2024-11-19 14:02:59,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:59,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:02:59,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:59,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266323692] [2024-11-19 14:02:59,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266323692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:02:59,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:02:59,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:02:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369418695] [2024-11-19 14:02:59,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:02:59,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:02:59,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:59,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:02:59,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:02:59,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:02:59,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:02:59,093 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:59,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:02:59,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:00,937 INFO L124 PetriNetUnfolderBase]: 13207/23946 cut-off events. [2024-11-19 14:03:00,938 INFO L125 PetriNetUnfolderBase]: For 20358/21945 co-relation queries the response was YES. [2024-11-19 14:03:01,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56054 conditions, 23946 events. 13207/23946 cut-off events. For 20358/21945 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 225087 event pairs, 6229 based on Foata normal form. 1515/23484 useless extension candidates. Maximal degree in co-relation 35715. Up to 11157 conditions per place. [2024-11-19 14:03:01,204 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 104 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2024-11-19 14:03:01,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 720 flow [2024-11-19 14:03:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:01,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:01,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-19 14:03:01,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-19 14:03:01,207 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 298 flow. Second operand 4 states and 298 transitions. [2024-11-19 14:03:01,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 720 flow [2024-11-19 14:03:01,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 150 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:01,366 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 288 flow [2024-11-19 14:03:01,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2024-11-19 14:03:01,367 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-19 14:03:01,367 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 288 flow [2024-11-19 14:03:01,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:01,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:01,368 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:01,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 14:03:01,368 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:01,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:01,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2000035946, now seen corresponding path program 1 times [2024-11-19 14:03:01,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:01,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752816468] [2024-11-19 14:03:01,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:01,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:01,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:01,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:01,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752816468] [2024-11-19 14:03:01,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752816468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:01,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:01,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285707347] [2024-11-19 14:03:01,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:01,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:01,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:01,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-19 14:03:01,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:01,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:01,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-19 14:03:01,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:02,927 INFO L124 PetriNetUnfolderBase]: 11899/22509 cut-off events. [2024-11-19 14:03:02,927 INFO L125 PetriNetUnfolderBase]: For 16711/18012 co-relation queries the response was YES. [2024-11-19 14:03:03,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 22509 events. 11899/22509 cut-off events. For 16711/18012 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 218586 event pairs, 3711 based on Foata normal form. 1120/21658 useless extension candidates. Maximal degree in co-relation 31540. Up to 8309 conditions per place. [2024-11-19 14:03:03,103 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 71 selfloop transitions, 4 changer transitions 0/118 dead transitions. [2024-11-19 14:03:03,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 118 transitions, 543 flow [2024-11-19 14:03:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:03,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-11-19 14:03:03,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-19 14:03:03,105 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 288 flow. Second operand 4 states and 280 transitions. [2024-11-19 14:03:03,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 118 transitions, 543 flow [2024-11-19 14:03:03,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 118 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:03,244 INFO L231 Difference]: Finished difference. Result has 97 places, 90 transitions, 288 flow [2024-11-19 14:03:03,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2024-11-19 14:03:03,245 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-19 14:03:03,245 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 288 flow [2024-11-19 14:03:03,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:03,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:03,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:03,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 14:03:03,246 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:03,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:03,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1207680655, now seen corresponding path program 1 times [2024-11-19 14:03:03,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:03,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775055893] [2024-11-19 14:03:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:03,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:03,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:03,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:03,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:03,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775055893] [2024-11-19 14:03:03,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775055893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:03,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:03,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131548293] [2024-11-19 14:03:03,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:03,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:03,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:03,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:03,317 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:03:03,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 90 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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) [2024-11-19 14:03:03,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:03,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:03:03,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:04,897 INFO L124 PetriNetUnfolderBase]: 15736/26116 cut-off events. [2024-11-19 14:03:04,897 INFO L125 PetriNetUnfolderBase]: For 22760/23942 co-relation queries the response was YES. [2024-11-19 14:03:05,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61857 conditions, 26116 events. 15736/26116 cut-off events. For 22760/23942 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 228359 event pairs, 6223 based on Foata normal form. 1307/25597 useless extension candidates. Maximal degree in co-relation 38821. Up to 11469 conditions per place. [2024-11-19 14:03:05,140 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 102 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-19 14:03:05,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 148 transitions, 707 flow [2024-11-19 14:03:05,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:05,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-19 14:03:05,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-19 14:03:05,142 INFO L175 Difference]: Start difference. First operand has 97 places, 90 transitions, 288 flow. Second operand 4 states and 298 transitions. [2024-11-19 14:03:05,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 148 transitions, 707 flow [2024-11-19 14:03:05,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 148 transitions, 684 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:05,205 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 290 flow [2024-11-19 14:03:05,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-19 14:03:05,206 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2024-11-19 14:03:05,206 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 290 flow [2024-11-19 14:03:05,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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) [2024-11-19 14:03:05,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:05,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:05,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 14:03:05,207 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:05,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:05,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1403999463, now seen corresponding path program 1 times [2024-11-19 14:03:05,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878992051] [2024-11-19 14:03:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:05,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:05,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:05,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:05,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878992051] [2024-11-19 14:03:05,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878992051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:05,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:05,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:03:05,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879807121] [2024-11-19 14:03:05,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:05,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:05,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:05,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:05,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:03:05,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-19 14:03:05,323 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:05,323 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:05,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-19 14:03:05,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:06,867 INFO L124 PetriNetUnfolderBase]: 17101/27512 cut-off events. [2024-11-19 14:03:06,867 INFO L125 PetriNetUnfolderBase]: For 26780/28706 co-relation queries the response was YES. [2024-11-19 14:03:07,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68550 conditions, 27512 events. 17101/27512 cut-off events. For 26780/28706 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 232411 event pairs, 3587 based on Foata normal form. 2288/28089 useless extension candidates. Maximal degree in co-relation 54759. Up to 6910 conditions per place. [2024-11-19 14:03:07,112 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 132 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-11-19 14:03:07,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 180 transitions, 926 flow [2024-11-19 14:03:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:07,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-19 14:03:07,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6972789115646258 [2024-11-19 14:03:07,113 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 290 flow. Second operand 6 states and 410 transitions. [2024-11-19 14:03:07,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 180 transitions, 926 flow [2024-11-19 14:03:07,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 180 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:03:07,247 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 311 flow [2024-11-19 14:03:07,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-19 14:03:07,248 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-19 14:03:07,248 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 311 flow [2024-11-19 14:03:07,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:07,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:07,248 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:07,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 14:03:07,248 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:07,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:07,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1871541198, now seen corresponding path program 1 times [2024-11-19 14:03:07,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:07,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185291893] [2024-11-19 14:03:07,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:07,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:07,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:07,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185291893] [2024-11-19 14:03:07,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185291893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:07,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:07,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:03:07,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117042770] [2024-11-19 14:03:07,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:07,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:07,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:07,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:07,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:07,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-19 14:03:07,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:07,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:07,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-19 14:03:07,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:08,583 INFO L124 PetriNetUnfolderBase]: 12814/23677 cut-off events. [2024-11-19 14:03:08,583 INFO L125 PetriNetUnfolderBase]: For 29371/31238 co-relation queries the response was YES. [2024-11-19 14:03:08,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57747 conditions, 23677 events. 12814/23677 cut-off events. For 29371/31238 co-relation queries the response was YES. Maximal size of possible extension queue 1300. Compared 225792 event pairs, 4044 based on Foata normal form. 2003/23697 useless extension candidates. Maximal degree in co-relation 46739. Up to 9274 conditions per place. [2024-11-19 14:03:08,779 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 76 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-11-19 14:03:08,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 597 flow [2024-11-19 14:03:08,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:08,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:08,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2024-11-19 14:03:08,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-11-19 14:03:08,780 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 311 flow. Second operand 4 states and 276 transitions. [2024-11-19 14:03:08,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 597 flow [2024-11-19 14:03:08,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 575 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:08,907 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 302 flow [2024-11-19 14:03:08,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-11-19 14:03:08,908 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-19 14:03:08,908 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 302 flow [2024-11-19 14:03:08,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:08,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:08,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:08,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 14:03:08,909 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:08,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:08,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1521628256, now seen corresponding path program 1 times [2024-11-19 14:03:08,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:08,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231825122] [2024-11-19 14:03:08,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:08,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:08,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:08,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231825122] [2024-11-19 14:03:08,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231825122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:08,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:08,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:03:08,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437087767] [2024-11-19 14:03:08,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:08,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:08,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:08,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:08,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-19 14:03:08,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:08,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:08,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-19 14:03:08,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:10,532 INFO L124 PetriNetUnfolderBase]: 17089/27301 cut-off events. [2024-11-19 14:03:10,532 INFO L125 PetriNetUnfolderBase]: For 28108/29622 co-relation queries the response was YES. [2024-11-19 14:03:10,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70598 conditions, 27301 events. 17089/27301 cut-off events. For 28108/29622 co-relation queries the response was YES. Maximal size of possible extension queue 1506. Compared 227327 event pairs, 6748 based on Foata normal form. 1864/27553 useless extension candidates. Maximal degree in co-relation 56678. Up to 12383 conditions per place. [2024-11-19 14:03:10,760 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 166 selfloop transitions, 8 changer transitions 0/210 dead transitions. [2024-11-19 14:03:10,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 210 transitions, 1132 flow [2024-11-19 14:03:10,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:10,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-19 14:03:10,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7465986394557823 [2024-11-19 14:03:10,762 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 302 flow. Second operand 6 states and 439 transitions. [2024-11-19 14:03:10,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 210 transitions, 1132 flow [2024-11-19 14:03:11,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 210 transitions, 1095 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 14:03:11,144 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 318 flow [2024-11-19 14:03:11,145 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-19 14:03:11,145 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-19 14:03:11,145 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 318 flow [2024-11-19 14:03:11,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:11,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:11,146 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:11,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 14:03:11,146 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:11,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:11,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2111764211, now seen corresponding path program 1 times [2024-11-19 14:03:11,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:11,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565006462] [2024-11-19 14:03:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:11,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:11,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:11,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:11,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565006462] [2024-11-19 14:03:11,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565006462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:11,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:11,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:11,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717995363] [2024-11-19 14:03:11,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:11,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:03:11,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:03:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:03:11,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-19 14:03:11,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:11,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:11,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-19 14:03:11,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:12,763 INFO L124 PetriNetUnfolderBase]: 14303/24867 cut-off events. [2024-11-19 14:03:12,763 INFO L125 PetriNetUnfolderBase]: For 36264/38189 co-relation queries the response was YES. [2024-11-19 14:03:12,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62638 conditions, 24867 events. 14303/24867 cut-off events. For 36264/38189 co-relation queries the response was YES. Maximal size of possible extension queue 1353. Compared 225764 event pairs, 7060 based on Foata normal form. 2250/25118 useless extension candidates. Maximal degree in co-relation 50454. Up to 12508 conditions per place. [2024-11-19 14:03:12,912 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 111 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-11-19 14:03:12,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 152 transitions, 820 flow [2024-11-19 14:03:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:03:12,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:03:12,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-19 14:03:12,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2024-11-19 14:03:12,913 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 318 flow. Second operand 4 states and 296 transitions. [2024-11-19 14:03:12,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 152 transitions, 820 flow [2024-11-19 14:03:13,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 152 transitions, 777 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-19 14:03:13,012 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 301 flow [2024-11-19 14:03:13,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-11-19 14:03:13,013 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-19 14:03:13,013 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 301 flow [2024-11-19 14:03:13,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:13,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:13,014 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:13,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 14:03:13,014 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:13,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:13,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2111765236, now seen corresponding path program 1 times [2024-11-19 14:03:13,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:13,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448845911] [2024-11-19 14:03:13,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:13,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:13,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:13,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448845911] [2024-11-19 14:03:13,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448845911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:13,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:13,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:03:13,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503688176] [2024-11-19 14:03:13,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:13,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:13,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:13,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:13,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:13,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-19 14:03:13,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:13,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:13,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-19 14:03:13,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:14,471 INFO L124 PetriNetUnfolderBase]: 17024/26790 cut-off events. [2024-11-19 14:03:14,471 INFO L125 PetriNetUnfolderBase]: For 31927/34358 co-relation queries the response was YES. [2024-11-19 14:03:14,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68650 conditions, 26790 events. 17024/26790 cut-off events. For 31927/34358 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 218750 event pairs, 4044 based on Foata normal form. 2431/27876 useless extension candidates. Maximal degree in co-relation 55134. Up to 11413 conditions per place. [2024-11-19 14:03:14,683 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 109 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-19 14:03:14,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 781 flow [2024-11-19 14:03:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 14:03:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 14:03:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-11-19 14:03:14,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7163265306122449 [2024-11-19 14:03:14,685 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 301 flow. Second operand 5 states and 351 transitions. [2024-11-19 14:03:14,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 781 flow [2024-11-19 14:03:14,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 150 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:03:14,806 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 305 flow [2024-11-19 14:03:14,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-19 14:03:14,807 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-19 14:03:14,807 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 305 flow [2024-11-19 14:03:14,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:14,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:14,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:14,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 14:03:14,808 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:14,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:14,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1040212079, now seen corresponding path program 1 times [2024-11-19 14:03:14,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:14,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27955247] [2024-11-19 14:03:14,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:14,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:14,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:14,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27955247] [2024-11-19 14:03:14,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27955247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:14,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:14,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 14:03:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897807167] [2024-11-19 14:03:14,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:14,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:03:14,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:14,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:03:14,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 14:03:14,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-19 14:03:14,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:14,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:14,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-19 14:03:14,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:16,320 INFO L124 PetriNetUnfolderBase]: 17024/26465 cut-off events. [2024-11-19 14:03:16,321 INFO L125 PetriNetUnfolderBase]: For 36152/38583 co-relation queries the response was YES. [2024-11-19 14:03:16,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68976 conditions, 26465 events. 17024/26465 cut-off events. For 36152/38583 co-relation queries the response was YES. Maximal size of possible extension queue 1420. Compared 212582 event pairs, 4044 based on Foata normal form. 3081/28201 useless extension candidates. Maximal degree in co-relation 55412. Up to 7579 conditions per place. [2024-11-19 14:03:16,487 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 137 selfloop transitions, 9 changer transitions 0/181 dead transitions. [2024-11-19 14:03:16,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 181 transitions, 975 flow [2024-11-19 14:03:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:16,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-19 14:03:16,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6921768707482994 [2024-11-19 14:03:16,489 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 305 flow. Second operand 6 states and 407 transitions. [2024-11-19 14:03:16,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 181 transitions, 975 flow [2024-11-19 14:03:16,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 181 transitions, 966 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:03:16,601 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 321 flow [2024-11-19 14:03:16,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-11-19 14:03:16,602 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2024-11-19 14:03:16,602 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 321 flow [2024-11-19 14:03:16,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:16,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:03:16,602 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:16,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 14:03:16,603 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-19 14:03:16,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:03:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1234485486, now seen corresponding path program 1 times [2024-11-19 14:03:16,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:03:16,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792640939] [2024-11-19 14:03:16,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:03:16,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:03:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:03:16,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:03:16,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:03:16,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792640939] [2024-11-19 14:03:16,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792640939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:03:16,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:03:16,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:03:16,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738313329] [2024-11-19 14:03:16,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:03:16,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:03:16,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:03:16,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:03:16,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:03:16,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-19 14:03:16,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:16,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:03:16,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-19 14:03:16,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:03:18,203 INFO L124 PetriNetUnfolderBase]: 17024/25642 cut-off events. [2024-11-19 14:03:18,204 INFO L125 PetriNetUnfolderBase]: For 38558/40942 co-relation queries the response was YES. [2024-11-19 14:03:18,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70844 conditions, 25642 events. 17024/25642 cut-off events. For 38558/40942 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 197539 event pairs, 7060 based on Foata normal form. 2709/27651 useless extension candidates. Maximal degree in co-relation 56947. Up to 12833 conditions per place. [2024-11-19 14:03:18,332 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 213/213 dead transitions. [2024-11-19 14:03:18,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 213 transitions, 1187 flow [2024-11-19 14:03:18,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:03:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:03:18,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2024-11-19 14:03:18,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7397959183673469 [2024-11-19 14:03:18,335 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 321 flow. Second operand 6 states and 435 transitions. [2024-11-19 14:03:18,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 213 transitions, 1187 flow [2024-11-19 14:03:18,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 213 transitions, 1169 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 14:03:18,671 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2024-11-19 14:03:18,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2024-11-19 14:03:18,672 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-19 14:03:18,672 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2024-11-19 14:03:18,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:03:18,674 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-19 14:03:18,675 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-19 14:03:18,675 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-19 14:03:18,675 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-19 14:03:18,675 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-19 14:03:18,676 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-19 14:03:18,679 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-19 14:03:18,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-19 14:03:18,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-19 14:03:18,682 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-19 14:03:18,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-19 14:03:18,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-19 14:03:18,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-19 14:03:18,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-19 14:03:18,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 14:03:18,685 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:03:18,693 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 14:03:18,693 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 14:03:18,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:03:18 BasicIcfg [2024-11-19 14:03:18,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 14:03:18,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 14:03:18,699 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 14:03:18,699 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 14:03:18,700 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:02:36" (3/4) ... [2024-11-19 14:03:18,701 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 14:03:18,704 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-19 14:03:18,704 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-19 14:03:18,704 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-19 14:03:18,710 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-11-19 14:03:18,710 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-19 14:03:18,710 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-19 14:03:18,710 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-19 14:03:18,797 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 14:03:18,797 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 14:03:18,797 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 14:03:18,798 INFO L158 Benchmark]: Toolchain (without parser) took 43471.88ms. Allocated memory was 176.2MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 105.5MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 5.0GB. Max. memory is 16.1GB. [2024-11-19 14:03:18,798 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 176.2MB. Free memory was 132.2MB in the beginning and 132.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 14:03:18,798 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.68ms. Allocated memory is still 176.2MB. Free memory was 105.3MB in the beginning and 91.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 14:03:18,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.81ms. Allocated memory is still 176.2MB. Free memory was 91.8MB in the beginning and 147.4MB in the end (delta: -55.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-19 14:03:18,799 INFO L158 Benchmark]: Boogie Preprocessor took 104.35ms. Allocated memory is still 176.2MB. Free memory was 147.4MB in the beginning and 144.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 14:03:18,799 INFO L158 Benchmark]: RCFGBuilder took 948.93ms. Allocated memory is still 176.2MB. Free memory was 144.7MB in the beginning and 87.4MB in the end (delta: 57.3MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-19 14:03:18,799 INFO L158 Benchmark]: TraceAbstraction took 41883.97ms. Allocated memory was 176.2MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 87.3MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 5.0GB. Max. memory is 16.1GB. [2024-11-19 14:03:18,799 INFO L158 Benchmark]: Witness Printer took 98.21ms. Allocated memory is still 9.4GB. Free memory was 4.4GB in the beginning and 4.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 14:03:18,803 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 176.2MB. Free memory was 132.2MB in the beginning and 132.1MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.68ms. Allocated memory is still 176.2MB. Free memory was 105.3MB in the beginning and 91.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.81ms. Allocated memory is still 176.2MB. Free memory was 91.8MB in the beginning and 147.4MB in the end (delta: -55.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.35ms. Allocated memory is still 176.2MB. Free memory was 147.4MB in the beginning and 144.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 948.93ms. Allocated memory is still 176.2MB. Free memory was 144.7MB in the beginning and 87.4MB in the end (delta: 57.3MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 41883.97ms. Allocated memory was 176.2MB in the beginning and 9.4GB in the end (delta: 9.3GB). Free memory was 87.3MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 5.0GB. Max. memory is 16.1GB. * Witness Printer took 98.21ms. Allocated memory is still 9.4GB. Free memory was 4.4GB in the beginning and 4.4GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 159 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 41.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 39.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2269 SdHoareTripleChecker+Valid, 3.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1934 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4500 IncrementalHoareTripleChecker+Invalid, 4605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 77 mSDtfsCounter, 4500 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 14:03:18,834 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