./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.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 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:44:35,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:44:35,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:44:35,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:44:35,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:44:36,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:44:36,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:44:36,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:44:36,026 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:44:36,026 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:44:36,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:44:36,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:44:36,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:44:36,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:44:36,028 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:44:36,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:44:36,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:44:36,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:44:36,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:44:36,034 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:44:36,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:44:36,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:44:36,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:44:36,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:44:36,038 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:44:36,038 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:44:36,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:44:36,038 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:44:36,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:44:36,039 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:44:36,039 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:44:36,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:44:36,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:44:36,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:44:36,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:44:36,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:44:36,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:44:36,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:44:36,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:44:36,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:44:36,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:44:36,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:44:36,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:44:36,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:44:36,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-12 20:44:36,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:44:36,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:44:36,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:44:36,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:44:36,361 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:44:36,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-12 20:44:37,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:44:38,115 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:44:38,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-12 20:44:38,126 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc68f1f2/e75d7f9b31864fb7a4c91a69ea3eac79/FLAG3e60c1d9e [2024-11-12 20:44:38,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fc68f1f2/e75d7f9b31864fb7a4c91a69ea3eac79 [2024-11-12 20:44:38,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:44:38,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:44:38,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:44:38,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:44:38,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:44:38,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0057f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38, skipping insertion in model container [2024-11-12 20:44:38,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:44:38,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:44:38,440 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:44:38,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:44:38,482 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:44:38,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38 WrapperNode [2024-11-12 20:44:38,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:44:38,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:44:38,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:44:38,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:44:38,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,529 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2024-11-12 20:44:38,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:44:38,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:44:38,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:44:38,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:44:38,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,565 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]. [2024-11-12 20:44:38,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,565 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,584 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:44:38,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:44:38,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:44:38,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:44:38,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (1/1) ... [2024-11-12 20:44:38,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:44:38,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:44:38,628 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) [2024-11-12 20:44:38,631 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 [2024-11-12 20:44:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:44:38,678 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 20:44:38,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 20:44:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 20:44:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 20:44:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-12 20:44:38,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-12 20:44:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:44:38,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:44:38,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:44:38,682 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:44:38,794 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:44:38,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:44:39,128 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:44:39,130 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:44:39,340 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:44:39,341 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 20:44:39,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:44:39 BoogieIcfgContainer [2024-11-12 20:44:39,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:44:39,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:44:39,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:44:39,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:44:39,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:44:38" (1/3) ... [2024-11-12 20:44:39,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:44:39, skipping insertion in model container [2024-11-12 20:44:39,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:44:38" (2/3) ... [2024-11-12 20:44:39,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:44:39, skipping insertion in model container [2024-11-12 20:44:39,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:44:39" (3/3) ... [2024-11-12 20:44:39,355 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-12 20:44:39,374 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:44:39,375 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-12 20:44:39,375 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:44:39,456 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 20:44:39,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 57 transitions, 135 flow [2024-11-12 20:44:39,548 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2024-11-12 20:44:39,548 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 20:44:39,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 54 events. 2/54 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 118 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-12 20:44:39,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 57 transitions, 135 flow [2024-11-12 20:44:39,579 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 52 transitions, 119 flow [2024-11-12 20:44:39,600 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:44:39,610 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;@5ad79882, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:44:39,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-12 20:44:39,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:44:39,617 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 20:44:39,617 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:44:39,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:39,618 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:39,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:39,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:39,625 INFO L85 PathProgramCache]: Analyzing trace with hash 599120897, now seen corresponding path program 1 times [2024-11-12 20:44:39,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:39,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006828686] [2024-11-12 20:44:39,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:39,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:39,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:39,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:39,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006828686] [2024-11-12 20:44:39,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006828686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:39,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:39,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:44:39,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990503557] [2024-11-12 20:44:39,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:39,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:44:40,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:40,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:44:40,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:44:40,045 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:40,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-12 20:44:40,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:40,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:40,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:40,656 INFO L124 PetriNetUnfolderBase]: 2702/4322 cut-off events. [2024-11-12 20:44:40,656 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-12 20:44:40,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8325 conditions, 4322 events. 2702/4322 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 28642 event pairs, 2534 based on Foata normal form. 0/2837 useless extension candidates. Maximal degree in co-relation 7847. Up to 3777 conditions per place. [2024-11-12 20:44:40,696 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 32 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2024-11-12 20:44:40,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 183 flow [2024-11-12 20:44:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:44:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:44:40,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-12 20:44:40,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.52046783625731 [2024-11-12 20:44:40,709 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 119 flow. Second operand 3 states and 89 transitions. [2024-11-12 20:44:40,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 183 flow [2024-11-12 20:44:40,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 174 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 20:44:40,720 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2024-11-12 20:44:40,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-11-12 20:44:40,727 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-11-12 20:44:40,730 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2024-11-12 20:44:40,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-12 20:44:40,730 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:40,730 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:40,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:44:40,731 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:40,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 599120898, now seen corresponding path program 1 times [2024-11-12 20:44:40,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:40,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853997777] [2024-11-12 20:44:40,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:40,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:40,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853997777] [2024-11-12 20:44:40,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853997777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:40,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:40,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:44:40,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062181315] [2024-11-12 20:44:40,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:40,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:44:40,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:40,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:44:40,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:44:40,865 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:40,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-12 20:44:40,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:40,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:40,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:41,266 INFO L124 PetriNetUnfolderBase]: 2625/4147 cut-off events. [2024-11-12 20:44:41,266 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-12 20:44:41,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7992 conditions, 4147 events. 2625/4147 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 27014 event pairs, 1693 based on Foata normal form. 0/2727 useless extension candidates. Maximal degree in co-relation 7971. Up to 3701 conditions per place. [2024-11-12 20:44:41,338 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 37 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2024-11-12 20:44:41,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 215 flow [2024-11-12 20:44:41,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:44:41,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:44:41,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-12 20:44:41,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5672514619883041 [2024-11-12 20:44:41,341 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 3 states and 97 transitions. [2024-11-12 20:44:41,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 215 flow [2024-11-12 20:44:41,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 209 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:44:41,343 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 140 flow [2024-11-12 20:44:41,344 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-11-12 20:44:41,346 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-12 20:44:41,346 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 140 flow [2024-11-12 20:44:41,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-12 20:44:41,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:41,346 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:41,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:44:41,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:41,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:41,349 INFO L85 PathProgramCache]: Analyzing trace with hash 471240821, now seen corresponding path program 1 times [2024-11-12 20:44:41,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:41,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245498705] [2024-11-12 20:44:41,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:41,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:41,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:41,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245498705] [2024-11-12 20:44:41,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245498705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:41,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:41,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:44:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143104299] [2024-11-12 20:44:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:41,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:44:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:41,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:44:41,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:44:41,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:41,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-12 20:44:41,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:41,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:41,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:41,855 INFO L124 PetriNetUnfolderBase]: 2317/3692 cut-off events. [2024-11-12 20:44:41,856 INFO L125 PetriNetUnfolderBase]: For 349/349 co-relation queries the response was YES. [2024-11-12 20:44:41,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7658 conditions, 3692 events. 2317/3692 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 306. Compared 23573 event pairs, 587 based on Foata normal form. 0/2502 useless extension candidates. Maximal degree in co-relation 6857. Up to 3137 conditions per place. [2024-11-12 20:44:41,881 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 56 selfloop transitions, 9 changer transitions 0/79 dead transitions. [2024-11-12 20:44:41,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 79 transitions, 336 flow [2024-11-12 20:44:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:44:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:44:41,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2024-11-12 20:44:41,885 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2024-11-12 20:44:41,885 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 140 flow. Second operand 4 states and 136 transitions. [2024-11-12 20:44:41,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 79 transitions, 336 flow [2024-11-12 20:44:41,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 79 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:44:41,888 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 182 flow [2024-11-12 20:44:41,888 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=58, PETRI_TRANSITIONS=55} [2024-11-12 20:44:41,889 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2024-11-12 20:44:41,889 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 182 flow [2024-11-12 20:44:41,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-12 20:44:41,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:41,891 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:41,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:44:41,891 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:41,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:41,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1582357509, now seen corresponding path program 1 times [2024-11-12 20:44:41,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:41,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528048851] [2024-11-12 20:44:41,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:41,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:41,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:41,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528048851] [2024-11-12 20:44:41,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528048851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:41,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:41,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:44:41,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717630990] [2024-11-12 20:44:41,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:41,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:44:41,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:41,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:44:41,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:44:41,961 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:41,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-12 20:44:41,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:41,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:41,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:42,217 INFO L124 PetriNetUnfolderBase]: 1492/2437 cut-off events. [2024-11-12 20:44:42,218 INFO L125 PetriNetUnfolderBase]: For 813/813 co-relation queries the response was YES. [2024-11-12 20:44:42,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5560 conditions, 2437 events. 1492/2437 cut-off events. For 813/813 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 14802 event pairs, 1249 based on Foata normal form. 0/1852 useless extension candidates. Maximal degree in co-relation 3038. Up to 2115 conditions per place. [2024-11-12 20:44:42,251 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 35 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2024-11-12 20:44:42,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 252 flow [2024-11-12 20:44:42,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:44:42,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:44:42,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-12 20:44:42,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5029239766081871 [2024-11-12 20:44:42,255 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 182 flow. Second operand 3 states and 86 transitions. [2024-11-12 20:44:42,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 252 flow [2024-11-12 20:44:42,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 234 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-12 20:44:42,260 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 164 flow [2024-11-12 20:44:42,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-11-12 20:44:42,261 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-12 20:44:42,261 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 164 flow [2024-11-12 20:44:42,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-12 20:44:42,261 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:42,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:42,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:44:42,262 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:42,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:42,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1582357510, now seen corresponding path program 1 times [2024-11-12 20:44:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:42,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453180363] [2024-11-12 20:44:42,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:42,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:42,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:42,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:42,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453180363] [2024-11-12 20:44:42,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453180363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:42,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:42,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:44:42,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583250518] [2024-11-12 20:44:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:42,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:44:42,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:42,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:44:42,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:44:42,335 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:42,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-12 20:44:42,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:42,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:42,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:42,552 INFO L124 PetriNetUnfolderBase]: 1144/1849 cut-off events. [2024-11-12 20:44:42,553 INFO L125 PetriNetUnfolderBase]: For 525/525 co-relation queries the response was YES. [2024-11-12 20:44:42,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4247 conditions, 1849 events. 1144/1849 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 9764 event pairs, 341 based on Foata normal form. 0/1502 useless extension candidates. Maximal degree in co-relation 4221. Up to 1460 conditions per place. [2024-11-12 20:44:42,564 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 52 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2024-11-12 20:44:42,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 72 transitions, 353 flow [2024-11-12 20:44:42,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:44:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:44:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-12 20:44:42,566 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6023391812865497 [2024-11-12 20:44:42,566 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 164 flow. Second operand 3 states and 103 transitions. [2024-11-12 20:44:42,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 72 transitions, 353 flow [2024-11-12 20:44:42,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:44:42,569 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 194 flow [2024-11-12 20:44:42,569 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2024-11-12 20:44:42,570 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-11-12 20:44:42,570 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 194 flow [2024-11-12 20:44:42,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-11-12 20:44:42,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:42,571 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:42,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:44:42,571 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:42,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:42,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1026093821, now seen corresponding path program 1 times [2024-11-12 20:44:42,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:42,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316840928] [2024-11-12 20:44:42,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:42,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:42,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:42,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:42,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316840928] [2024-11-12 20:44:42,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316840928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:42,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:42,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:44:42,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301746015] [2024-11-12 20:44:42,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:42,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:44:42,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:42,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:44:42,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:44:42,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:42,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-12 20:44:42,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:42,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:42,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:42,884 INFO L124 PetriNetUnfolderBase]: 931/1595 cut-off events. [2024-11-12 20:44:42,884 INFO L125 PetriNetUnfolderBase]: For 640/640 co-relation queries the response was YES. [2024-11-12 20:44:42,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3761 conditions, 1595 events. 931/1595 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 8531 event pairs, 22 based on Foata normal form. 0/1367 useless extension candidates. Maximal degree in co-relation 3221. Up to 801 conditions per place. [2024-11-12 20:44:42,894 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 62 selfloop transitions, 12 changer transitions 0/88 dead transitions. [2024-11-12 20:44:42,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 88 transitions, 434 flow [2024-11-12 20:44:42,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:44:42,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:44:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2024-11-12 20:44:42,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5473684210526316 [2024-11-12 20:44:42,896 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 194 flow. Second operand 5 states and 156 transitions. [2024-11-12 20:44:42,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 88 transitions, 434 flow [2024-11-12 20:44:42,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 88 transitions, 422 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:44:42,899 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 194 flow [2024-11-12 20:44:42,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2024-11-12 20:44:42,901 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-11-12 20:44:42,902 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 194 flow [2024-11-12 20:44:42,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-11-12 20:44:42,902 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:42,902 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:42,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:44:42,902 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:42,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:42,903 INFO L85 PathProgramCache]: Analyzing trace with hash 959320074, now seen corresponding path program 1 times [2024-11-12 20:44:42,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:42,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961632601] [2024-11-12 20:44:42,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:42,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:42,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:42,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961632601] [2024-11-12 20:44:42,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961632601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:42,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:42,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:44:42,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399467356] [2024-11-12 20:44:42,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:42,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:44:42,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:42,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:44:42,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:44:42,987 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:42,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-12 20:44:42,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:42,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:42,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:43,143 INFO L124 PetriNetUnfolderBase]: 687/1154 cut-off events. [2024-11-12 20:44:43,143 INFO L125 PetriNetUnfolderBase]: For 1035/1035 co-relation queries the response was YES. [2024-11-12 20:44:43,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 1154 events. 687/1154 cut-off events. For 1035/1035 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5507 event pairs, 105 based on Foata normal form. 0/1080 useless extension candidates. Maximal degree in co-relation 1163. Up to 438 conditions per place. [2024-11-12 20:44:43,150 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 56 selfloop transitions, 9 changer transitions 3/82 dead transitions. [2024-11-12 20:44:43,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 82 transitions, 450 flow [2024-11-12 20:44:43,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:44:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:44:43,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-12 20:44:43,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5701754385964912 [2024-11-12 20:44:43,152 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 194 flow. Second operand 4 states and 130 transitions. [2024-11-12 20:44:43,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 82 transitions, 450 flow [2024-11-12 20:44:43,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 82 transitions, 372 flow, removed 18 selfloop flow, removed 5 redundant places. [2024-11-12 20:44:43,155 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 182 flow [2024-11-12 20:44:43,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2024-11-12 20:44:43,156 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2024-11-12 20:44:43,156 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 182 flow [2024-11-12 20:44:43,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 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) [2024-11-12 20:44:43,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:44:43,156 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:43,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 20:44:43,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-12 20:44:43,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:44:43,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1206686833, now seen corresponding path program 1 times [2024-11-12 20:44:43,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:44:43,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280135006] [2024-11-12 20:44:43,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:44:43,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:44:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:44:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:44:43,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:44:43,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280135006] [2024-11-12 20:44:43,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280135006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:44:43,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:44:43,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:44:43,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279894492] [2024-11-12 20:44:43,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:44:43,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:44:43,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:44:43,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:44:43,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:44:43,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 57 [2024-11-12 20:44:43,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-12 20:44:43,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:44:43,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 57 [2024-11-12 20:44:43,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:44:43,373 INFO L124 PetriNetUnfolderBase]: 594/1010 cut-off events. [2024-11-12 20:44:43,374 INFO L125 PetriNetUnfolderBase]: For 783/783 co-relation queries the response was YES. [2024-11-12 20:44:43,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2433 conditions, 1010 events. 594/1010 cut-off events. For 783/783 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4836 event pairs, 78 based on Foata normal form. 29/994 useless extension candidates. Maximal degree in co-relation 858. Up to 399 conditions per place. [2024-11-12 20:44:43,378 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2024-11-12 20:44:43,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 360 flow [2024-11-12 20:44:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:44:43,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:44:43,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2024-11-12 20:44:43,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49473684210526314 [2024-11-12 20:44:43,380 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 182 flow. Second operand 5 states and 141 transitions. [2024-11-12 20:44:43,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 360 flow [2024-11-12 20:44:43,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 330 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-12 20:44:43,382 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-11-12 20:44:43,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-11-12 20:44:43,383 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -8 predicate places. [2024-11-12 20:44:43,384 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-11-12 20:44:43,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 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) [2024-11-12 20:44:43,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2024-11-12 20:44:43,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2024-11-12 20:44:43,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2024-11-12 20:44:43,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2024-11-12 20:44:43,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2024-11-12 20:44:43,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2024-11-12 20:44:43,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2024-11-12 20:44:43,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2024-11-12 20:44:43,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2024-11-12 20:44:43,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2024-11-12 20:44:43,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2024-11-12 20:44:43,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2024-11-12 20:44:43,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2024-11-12 20:44:43,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2024-11-12 20:44:43,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2024-11-12 20:44:43,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2024-11-12 20:44:43,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2024-11-12 20:44:43,390 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2024-11-12 20:44:43,391 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2024-11-12 20:44:43,392 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2024-11-12 20:44:43,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 20:44:43,392 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:44:43,401 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 20:44:43,401 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:44:43,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:44:43 BasicIcfg [2024-11-12 20:44:43,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:44:43,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:44:43,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:44:43,410 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:44:43,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:44:39" (3/4) ... [2024-11-12 20:44:43,412 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 20:44:43,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 20:44:43,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 20:44:43,420 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-12 20:44:43,427 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-12 20:44:43,427 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-12 20:44:43,428 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-12 20:44:43,428 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 20:44:43,521 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:44:43,521 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 20:44:43,522 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:44:43,522 INFO L158 Benchmark]: Toolchain (without parser) took 5368.05ms. Allocated memory was 174.1MB in the beginning and 358.6MB in the end (delta: 184.5MB). Free memory was 144.4MB in the beginning and 283.6MB in the end (delta: -139.2MB). Peak memory consumption was 244.6MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,522 INFO L158 Benchmark]: CDTParser took 1.20ms. Allocated memory is still 130.0MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:44:43,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.41ms. Allocated memory is still 174.1MB. Free memory was 144.2MB in the beginning and 136.6MB in the end (delta: 7.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.85ms. Allocated memory is still 174.1MB. Free memory was 136.6MB in the beginning and 134.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,523 INFO L158 Benchmark]: Boogie Preprocessor took 54.34ms. Allocated memory is still 174.1MB. Free memory was 134.4MB in the beginning and 132.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,523 INFO L158 Benchmark]: RCFGBuilder took 755.78ms. Allocated memory is still 174.1MB. Free memory was 132.4MB in the beginning and 96.2MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,524 INFO L158 Benchmark]: TraceAbstraction took 4060.68ms. Allocated memory was 174.1MB in the beginning and 358.6MB in the end (delta: 184.5MB). Free memory was 95.4MB in the beginning and 89.0MB in the end (delta: 6.4MB). Peak memory consumption was 189.6MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,524 INFO L158 Benchmark]: Witness Printer took 111.90ms. Allocated memory is still 358.6MB. Free memory was 89.0MB in the beginning and 283.6MB in the end (delta: -194.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-12 20:44:43,525 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.20ms. Allocated memory is still 130.0MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.41ms. Allocated memory is still 174.1MB. Free memory was 144.2MB in the beginning and 136.6MB in the end (delta: 7.6MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.85ms. Allocated memory is still 174.1MB. Free memory was 136.6MB in the beginning and 134.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.34ms. Allocated memory is still 174.1MB. Free memory was 134.4MB in the beginning and 132.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 755.78ms. Allocated memory is still 174.1MB. Free memory was 132.4MB in the beginning and 96.2MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4060.68ms. Allocated memory was 174.1MB in the beginning and 358.6MB in the end (delta: 184.5MB). Free memory was 95.4MB in the beginning and 89.0MB in the end (delta: 6.4MB). Peak memory consumption was 189.6MB. Max. memory is 16.1GB. * Witness Printer took 111.90ms. Allocated memory is still 358.6MB. Free memory was 89.0MB in the beginning and 283.6MB in the end (delta: -194.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: 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, 95 locations, 27 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: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 201 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 198 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 523 IncrementalHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 3 mSDtfsCounter, 523 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=194occurred in iteration=5, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 20:44:43,552 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