./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 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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 0.3.0-?-8fc3dc6-m [2025-03-17 19:43:25,686 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:43:25,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:43:25,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:43:25,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:43:25,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:43:25,772 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:43:25,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:43:25,773 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:43:25,773 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:43:25,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:43:25,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:43:25,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:43:25,774 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:43:25,774 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:43:25,774 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:43:25,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:43:25,774 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:43:25,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:43:25,774 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:43:25,775 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:43:25,776 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:43:25,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:43:25,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:43:25,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:43:25,776 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:43:25,776 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:43:25,776 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:43:25,776 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:43:25,777 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 [2025-03-17 19:43:26,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:43:26,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:43:26,011 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:43:26,012 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:43:26,012 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:43:26,014 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-03-17 19:43:27,211 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98f8e17b/fb2f6375d746499b8cc5df33dcd0ef63/FLAG6446d121d [2025-03-17 19:43:27,444 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:43:27,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-03-17 19:43:27,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98f8e17b/fb2f6375d746499b8cc5df33dcd0ef63/FLAG6446d121d [2025-03-17 19:43:27,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c98f8e17b/fb2f6375d746499b8cc5df33dcd0ef63 [2025-03-17 19:43:27,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:43:27,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:43:27,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:43:27,515 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:43:27,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:43:27,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e47cdb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27, skipping insertion in model container [2025-03-17 19:43:27,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:43:27,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:43:27,659 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:43:27,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:43:27,683 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:43:27,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27 WrapperNode [2025-03-17 19:43:27,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:43:27,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:43:27,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:43:27,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:43:27,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,718 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 154 [2025-03-17 19:43:27,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:43:27,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:43:27,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:43:27,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:43:27,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,736 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,748 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]. [2025-03-17 19:43:27,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,755 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,760 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:43:27,763 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:43:27,763 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:43:27,763 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:43:27,769 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (1/1) ... [2025-03-17 19:43:27,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:43:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:43:27,800 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) [2025-03-17 19:43:27,802 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 [2025-03-17 19:43:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:43:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:43:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:43:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:43:27,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:43:27,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-17 19:43:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-17 19:43:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:43:27,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:43:27,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:43:27,824 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:43:27,896 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:43:27,897 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:43:28,096 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:43:28,097 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:43:28,229 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:43:28,230 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:43:28,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:43:28 BoogieIcfgContainer [2025-03-17 19:43:28,230 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:43:28,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:43:28,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:43:28,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:43:28,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:43:27" (1/3) ... [2025-03-17 19:43:28,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b06d2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:43:28, skipping insertion in model container [2025-03-17 19:43:28,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:43:27" (2/3) ... [2025-03-17 19:43:28,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b06d2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:43:28, skipping insertion in model container [2025-03-17 19:43:28,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:43:28" (3/3) ... [2025-03-17 19:43:28,240 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2025-03-17 19:43:28,253 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:43:28,255 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-3.wvr.c that has 4 procedures, 56 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-03-17 19:43:28,255 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:43:28,314 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 19:43:28,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 57 transitions, 135 flow [2025-03-17 19:43:28,376 INFO L124 PetriNetUnfolderBase]: 2/54 cut-off events. [2025-03-17 19:43:28,380 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 19:43:28,384 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 9. Compared 117 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. [2025-03-17 19:43:28,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 57 transitions, 135 flow [2025-03-17 19:43:28,390 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 52 transitions, 119 flow [2025-03-17 19:43:28,400 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:43:28,410 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;@e5d5cda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:43:28,410 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2025-03-17 19:43:28,415 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:43:28,415 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-03-17 19:43:28,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:43:28,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:28,416 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:28,416 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:28,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 769762888, now seen corresponding path program 1 times [2025-03-17 19:43:28,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:28,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189199311] [2025-03-17 19:43:28,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:28,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:28,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:43:28,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:43:28,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:28,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:28,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:28,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189199311] [2025-03-17 19:43:28,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189199311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:28,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:28,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:43:28,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186398655] [2025-03-17 19:43:28,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:28,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:43:28,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:28,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:43:28,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:43:28,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:28,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-17 19:43:28,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:28,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:28,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:29,274 INFO L124 PetriNetUnfolderBase]: 4436/6535 cut-off events. [2025-03-17 19:43:29,274 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2025-03-17 19:43:29,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13013 conditions, 6535 events. 4436/6535 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 38056 event pairs, 3600 based on Foata normal form. 0/4167 useless extension candidates. Maximal degree in co-relation 12298. Up to 6186 conditions per place. [2025-03-17 19:43:29,326 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 39 selfloop transitions, 3 changer transitions 0/49 dead transitions. [2025-03-17 19:43:29,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 49 transitions, 197 flow [2025-03-17 19:43:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:43:29,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:43:29,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2025-03-17 19:43:29,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2025-03-17 19:43:29,339 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 119 flow. Second operand 3 states and 75 transitions. [2025-03-17 19:43:29,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 49 transitions, 197 flow [2025-03-17 19:43:29,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 188 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 19:43:29,355 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2025-03-17 19:43:29,357 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} [2025-03-17 19:43:29,359 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-03-17 19:43:29,360 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2025-03-17 19:43:29,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-17 19:43:29,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:29,360 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:29,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:43:29,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:29,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash 769762889, now seen corresponding path program 1 times [2025-03-17 19:43:29,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:29,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301523923] [2025-03-17 19:43:29,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:29,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:29,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:43:29,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:43:29,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:29,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:29,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:29,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:29,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301523923] [2025-03-17 19:43:29,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301523923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:29,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:29,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:43:29,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877462038] [2025-03-17 19:43:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:29,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:43:29,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:29,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:43:29,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:43:29,443 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:29,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-17 19:43:29,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:29,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:29,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:29,930 INFO L124 PetriNetUnfolderBase]: 4489/6535 cut-off events. [2025-03-17 19:43:29,930 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2025-03-17 19:43:29,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12955 conditions, 6535 events. 4489/6535 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 36992 event pairs, 2498 based on Foata normal form. 0/4245 useless extension candidates. Maximal degree in co-relation 12931. Up to 6231 conditions per place. [2025-03-17 19:43:29,960 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 44 selfloop transitions, 6 changer transitions 0/57 dead transitions. [2025-03-17 19:43:29,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 229 flow [2025-03-17 19:43:29,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:43:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:43:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-03-17 19:43:29,961 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4853801169590643 [2025-03-17 19:43:29,961 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 3 states and 83 transitions. [2025-03-17 19:43:29,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 229 flow [2025-03-17 19:43:29,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 223 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:43:29,963 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 140 flow [2025-03-17 19:43:29,963 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} [2025-03-17 19:43:29,965 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2025-03-17 19:43:29,965 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 140 flow [2025-03-17 19:43:29,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2025-03-17 19:43:29,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:29,965 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:29,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:43:29,965 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:29,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:29,966 INFO L85 PathProgramCache]: Analyzing trace with hash 649590216, now seen corresponding path program 1 times [2025-03-17 19:43:29,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:29,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045157122] [2025-03-17 19:43:29,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:29,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:29,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:43:29,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:43:29,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:29,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:30,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:30,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:30,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045157122] [2025-03-17 19:43:30,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045157122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:30,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:30,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:43:30,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838994091] [2025-03-17 19:43:30,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:30,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:43:30,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:30,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:43:30,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:43:30,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:30,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-03-17 19:43:30,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:30,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:30,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:30,466 INFO L124 PetriNetUnfolderBase]: 3907/5814 cut-off events. [2025-03-17 19:43:30,467 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2025-03-17 19:43:30,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12137 conditions, 5814 events. 3907/5814 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 33243 event pairs, 867 based on Foata normal form. 0/3919 useless extension candidates. Maximal degree in co-relation 11101. Up to 5303 conditions per place. [2025-03-17 19:43:30,494 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 67 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2025-03-17 19:43:30,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 366 flow [2025-03-17 19:43:30,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:43:30,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:43:30,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-03-17 19:43:30,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5219298245614035 [2025-03-17 19:43:30,496 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 140 flow. Second operand 4 states and 119 transitions. [2025-03-17 19:43:30,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 366 flow [2025-03-17 19:43:30,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 83 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:43:30,499 INFO L231 Difference]: Finished difference. Result has 58 places, 55 transitions, 182 flow [2025-03-17 19:43:30,499 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} [2025-03-17 19:43:30,500 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -2 predicate places. [2025-03-17 19:43:30,500 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 55 transitions, 182 flow [2025-03-17 19:43:30,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2025-03-17 19:43:30,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:30,501 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:30,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:43:30,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:30,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:30,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2104256716, now seen corresponding path program 1 times [2025-03-17 19:43:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:30,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413013614] [2025-03-17 19:43:30,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:30,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:30,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:43:30,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:43:30,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:30,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:30,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:30,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413013614] [2025-03-17 19:43:30,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413013614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:30,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:30,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:43:30,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701558941] [2025-03-17 19:43:30,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:30,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:43:30,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:30,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:43:30,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:43:30,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:30,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 55 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-03-17 19:43:30,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:30,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:30,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:30,775 INFO L124 PetriNetUnfolderBase]: 2710/4048 cut-off events. [2025-03-17 19:43:30,776 INFO L125 PetriNetUnfolderBase]: For 1054/1054 co-relation queries the response was YES. [2025-03-17 19:43:30,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9237 conditions, 4048 events. 2710/4048 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 22219 event pairs, 2025 based on Foata normal form. 0/3004 useless extension candidates. Maximal degree in co-relation 5648. Up to 3834 conditions per place. [2025-03-17 19:43:30,788 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 42 selfloop transitions, 3 changer transitions 0/52 dead transitions. [2025-03-17 19:43:30,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 266 flow [2025-03-17 19:43:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:43:30,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:43:30,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-03-17 19:43:30,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2025-03-17 19:43:30,790 INFO L175 Difference]: Start difference. First operand has 58 places, 55 transitions, 182 flow. Second operand 3 states and 72 transitions. [2025-03-17 19:43:30,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 266 flow [2025-03-17 19:43:30,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 248 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-17 19:43:30,791 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 164 flow [2025-03-17 19:43:30,791 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} [2025-03-17 19:43:30,792 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2025-03-17 19:43:30,792 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 164 flow [2025-03-17 19:43:30,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-03-17 19:43:30,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:30,792 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:30,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:43:30,792 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:30,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash 2104256717, now seen corresponding path program 1 times [2025-03-17 19:43:30,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:30,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364727065] [2025-03-17 19:43:30,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:30,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:30,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:43:30,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:43:30,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:30,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:30,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:30,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364727065] [2025-03-17 19:43:30,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364727065] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:30,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:30,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:43:30,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145697762] [2025-03-17 19:43:30,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:30,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:43:30,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:30,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:43:30,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:43:30,825 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:30,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-03-17 19:43:30,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:30,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:30,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:31,030 INFO L124 PetriNetUnfolderBase]: 2216/3302 cut-off events. [2025-03-17 19:43:31,031 INFO L125 PetriNetUnfolderBase]: For 725/725 co-relation queries the response was YES. [2025-03-17 19:43:31,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7452 conditions, 3302 events. 2216/3302 cut-off events. For 725/725 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 16833 event pairs, 604 based on Foata normal form. 0/2671 useless extension candidates. Maximal degree in co-relation 7423. Up to 2559 conditions per place. [2025-03-17 19:43:31,042 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 63 selfloop transitions, 6 changer transitions 0/76 dead transitions. [2025-03-17 19:43:31,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 383 flow [2025-03-17 19:43:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:43:31,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:43:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2025-03-17 19:43:31,043 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2025-03-17 19:43:31,044 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 164 flow. Second operand 3 states and 93 transitions. [2025-03-17 19:43:31,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 383 flow [2025-03-17 19:43:31,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 76 transitions, 377 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:43:31,046 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 194 flow [2025-03-17 19:43:31,046 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} [2025-03-17 19:43:31,046 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-03-17 19:43:31,046 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 194 flow [2025-03-17 19:43:31,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2025-03-17 19:43:31,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:31,047 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] [2025-03-17 19:43:31,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:43:31,047 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:31,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 939049124, now seen corresponding path program 1 times [2025-03-17 19:43:31,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228232753] [2025-03-17 19:43:31,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:31,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-17 19:43:31,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-17 19:43:31,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:31,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:31,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:31,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228232753] [2025-03-17 19:43:31,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228232753] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:31,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:31,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:43:31,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610600302] [2025-03-17 19:43:31,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:31,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:43:31,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:31,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:43:31,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:43:31,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:31,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-03-17 19:43:31,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:31,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:31,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:31,382 INFO L124 PetriNetUnfolderBase]: 1557/2491 cut-off events. [2025-03-17 19:43:31,382 INFO L125 PetriNetUnfolderBase]: For 848/848 co-relation queries the response was YES. [2025-03-17 19:43:31,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6036 conditions, 2491 events. 1557/2491 cut-off events. For 848/848 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 12761 event pairs, 82 based on Foata normal form. 0/2148 useless extension candidates. Maximal degree in co-relation 5313. Up to 1503 conditions per place. [2025-03-17 19:43:31,393 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 77 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2025-03-17 19:43:31,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 96 transitions, 480 flow [2025-03-17 19:43:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:43:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:43:31,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2025-03-17 19:43:31,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47719298245614034 [2025-03-17 19:43:31,396 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 194 flow. Second operand 5 states and 136 transitions. [2025-03-17 19:43:31,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 96 transitions, 480 flow [2025-03-17 19:43:31,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 96 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:43:31,401 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 194 flow [2025-03-17 19:43:31,402 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} [2025-03-17 19:43:31,403 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-03-17 19:43:31,403 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 194 flow [2025-03-17 19:43:31,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2025-03-17 19:43:31,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:31,404 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] [2025-03-17 19:43:31,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:43:31,404 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:31,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:31,404 INFO L85 PathProgramCache]: Analyzing trace with hash -380154745, now seen corresponding path program 1 times [2025-03-17 19:43:31,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:31,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830387435] [2025-03-17 19:43:31,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:31,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:31,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-17 19:43:31,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-17 19:43:31,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:31,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:31,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:31,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830387435] [2025-03-17 19:43:31,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830387435] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:31,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:31,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:43:31,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37061084] [2025-03-17 19:43:31,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:31,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:43:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:31,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:43:31,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:43:31,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:31,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-03-17 19:43:31,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:31,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:31,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:31,729 INFO L124 PetriNetUnfolderBase]: 1361/2104 cut-off events. [2025-03-17 19:43:31,729 INFO L125 PetriNetUnfolderBase]: For 1539/1555 co-relation queries the response was YES. [2025-03-17 19:43:31,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5332 conditions, 2104 events. 1361/2104 cut-off events. For 1539/1555 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 10030 event pairs, 244 based on Foata normal form. 16/1982 useless extension candidates. Maximal degree in co-relation 2737. Up to 842 conditions per place. [2025-03-17 19:43:31,739 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 71 selfloop transitions, 9 changer transitions 3/90 dead transitions. [2025-03-17 19:43:31,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 90 transitions, 496 flow [2025-03-17 19:43:31,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:43:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:43:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-03-17 19:43:31,741 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2025-03-17 19:43:31,741 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 194 flow. Second operand 4 states and 117 transitions. [2025-03-17 19:43:31,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 90 transitions, 496 flow [2025-03-17 19:43:31,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 90 transitions, 418 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-03-17 19:43:31,744 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 182 flow [2025-03-17 19:43:31,744 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} [2025-03-17 19:43:31,745 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -5 predicate places. [2025-03-17 19:43:31,745 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 182 flow [2025-03-17 19:43:31,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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) [2025-03-17 19:43:31,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:31,745 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, 1] [2025-03-17 19:43:31,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:43:31,745 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:31,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash -313219597, now seen corresponding path program 1 times [2025-03-17 19:43:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136122232] [2025-03-17 19:43:31,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:31,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 19:43:31,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 19:43:31,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:31,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:31,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:31,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136122232] [2025-03-17 19:43:31,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136122232] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:31,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:31,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:43:31,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059424664] [2025-03-17 19:43:31,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:31,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:43:31,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:31,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:43:31,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:43:31,786 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 57 [2025-03-17 19:43:31,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-03-17 19:43:31,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:31,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 57 [2025-03-17 19:43:31,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:32,076 INFO L124 PetriNetUnfolderBase]: 2766/4143 cut-off events. [2025-03-17 19:43:32,076 INFO L125 PetriNetUnfolderBase]: For 2362/2362 co-relation queries the response was YES. [2025-03-17 19:43:32,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10066 conditions, 4143 events. 2766/4143 cut-off events. For 2362/2362 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 21338 event pairs, 974 based on Foata normal form. 0/3950 useless extension candidates. Maximal degree in co-relation 5743. Up to 2189 conditions per place. [2025-03-17 19:43:32,098 INFO L140 encePairwiseOnDemand]: 51/57 looper letters, 78 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2025-03-17 19:43:32,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 468 flow [2025-03-17 19:43:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:43:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:43:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2025-03-17 19:43:32,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5087719298245614 [2025-03-17 19:43:32,100 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 182 flow. Second operand 3 states and 87 transitions. [2025-03-17 19:43:32,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 468 flow [2025-03-17 19:43:32,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 85 transitions, 438 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-03-17 19:43:32,104 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 196 flow [2025-03-17 19:43:32,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2025-03-17 19:43:32,105 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -3 predicate places. [2025-03-17 19:43:32,105 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 196 flow [2025-03-17 19:43:32,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2025-03-17 19:43:32,108 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:32,108 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] [2025-03-17 19:43:32,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:43:32,108 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-03-17 19:43:32,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1377721942, now seen corresponding path program 1 times [2025-03-17 19:43:32,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:32,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040431932] [2025-03-17 19:43:32,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:32,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:32,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 19:43:32,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 19:43:32,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:32,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:43:32,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:32,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040431932] [2025-03-17 19:43:32,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040431932] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:32,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:32,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:43:32,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002881505] [2025-03-17 19:43:32,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:32,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:43:32,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:32,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:43:32,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:43:32,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 57 [2025-03-17 19:43:32,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-03-17 19:43:32,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:32,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 57 [2025-03-17 19:43:32,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:32,492 INFO L124 PetriNetUnfolderBase]: 2094/3288 cut-off events. [2025-03-17 19:43:32,493 INFO L125 PetriNetUnfolderBase]: For 1903/1943 co-relation queries the response was YES. [2025-03-17 19:43:32,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8153 conditions, 3288 events. 2094/3288 cut-off events. For 1903/1943 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 18031 event pairs, 351 based on Foata normal form. 108/3320 useless extension candidates. Maximal degree in co-relation 4541. Up to 1477 conditions per place. [2025-03-17 19:43:32,500 INFO L140 encePairwiseOnDemand]: 48/57 looper letters, 0 selfloop transitions, 0 changer transitions 89/89 dead transitions. [2025-03-17 19:43:32,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 89 transitions, 450 flow [2025-03-17 19:43:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:43:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:43:32,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2025-03-17 19:43:32,501 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4245614035087719 [2025-03-17 19:43:32,501 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 196 flow. Second operand 5 states and 121 transitions. [2025-03-17 19:43:32,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 89 transitions, 450 flow [2025-03-17 19:43:32,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 422 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:43:32,505 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2025-03-17 19:43:32,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2025-03-17 19:43:32,506 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-03-17 19:43:32,506 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2025-03-17 19:43:32,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-03-17 19:43:32,508 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2025-03-17 19:43:32,509 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2025-03-17 19:43:32,510 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2025-03-17 19:43:32,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 19:43:32,511 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:32,515 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:43:32,515 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:43:32,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:43:32 BasicIcfg [2025-03-17 19:43:32,521 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:43:32,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:43:32,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:43:32,522 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:43:32,522 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:43:28" (3/4) ... [2025-03-17 19:43:32,523 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:43:32,525 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 19:43:32,526 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 19:43:32,526 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-17 19:43:32,528 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-03-17 19:43:32,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-17 19:43:32,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-03-17 19:43:32,529 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 19:43:32,591 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:43:32,591 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:43:32,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:43:32,592 INFO L158 Benchmark]: Toolchain (without parser) took 5080.36ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 109.9MB in the beginning and 204.2MB in the end (delta: -94.2MB). Peak memory consumption was 452.4MB. Max. memory is 16.1GB. [2025-03-17 19:43:32,593 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 201.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:43:32,593 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.80ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 98.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:43:32,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.58ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:43:32,594 INFO L158 Benchmark]: Boogie Preprocessor took 41.16ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:43:32,595 INFO L158 Benchmark]: IcfgBuilder took 467.00ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 61.0MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-17 19:43:32,595 INFO L158 Benchmark]: TraceAbstraction took 4289.11ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 61.0MB in the beginning and 209.3MB in the end (delta: -148.3MB). Peak memory consumption was 393.7MB. Max. memory is 16.1GB. [2025-03-17 19:43:32,595 INFO L158 Benchmark]: Witness Printer took 70.09ms. Allocated memory is still 687.9MB. Free memory was 209.3MB in the beginning and 204.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:43:32,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 201.3MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.80ms. Allocated memory is still 142.6MB. Free memory was 109.9MB in the beginning and 98.4MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.58ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.16ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 467.00ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 61.0MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4289.11ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 61.0MB in the beginning and 209.3MB in the end (delta: -148.3MB). Peak memory consumption was 393.7MB. Max. memory is 16.1GB. * Witness Printer took 70.09ms. Allocated memory is still 687.9MB. Free memory was 209.3MB in the beginning and 204.2MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. 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, 98 edges, 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: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 275 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 272 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 746 IncrementalHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 2 mSDtfsCounter, 746 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=8, InterpolantAutomatonStates: 33, 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, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:43:32,609 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