./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind1-100.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:15:47,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:15:47,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:15:47,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:15:47,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:15:47,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:15:47,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:15:47,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:15:47,533 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:15:47,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:15:47,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:15:47,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:15:47,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:15:47,534 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:15:47,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:15:47,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:15:47,535 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:15:47,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:15:47,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:15:47,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:15:47,535 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:15:47,535 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:15:47,535 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-jdk21/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 -> d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 [2025-02-08 14:15:47,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:15:47,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:15:47,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:15:47,806 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:15:47,806 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:15:47,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind1-100.i [2025-02-08 14:15:48,991 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c2d58240/22947645b59e42af85e33981ee119bb1/FLAG87ca77cef [2025-02-08 14:15:49,309 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:15:49,310 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i [2025-02-08 14:15:49,321 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c2d58240/22947645b59e42af85e33981ee119bb1/FLAG87ca77cef [2025-02-08 14:15:49,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c2d58240/22947645b59e42af85e33981ee119bb1 [2025-02-08 14:15:49,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:15:49,554 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:15:49,555 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:15:49,555 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:15:49,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:15:49,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:49,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4252e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49, skipping insertion in model container [2025-02-08 14:15:49,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:49,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:15:49,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:15:49,897 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:15:49,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:15:49,969 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:15:49,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49 WrapperNode [2025-02-08 14:15:49,970 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:15:49,971 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:15:49,971 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:15:49,972 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:15:49,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:49,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,007 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2025-02-08 14:15:50,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:15:50,008 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:15:50,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:15:50,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:15:50,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,017 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,030 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]. [2025-02-08 14:15:50,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:15:50,054 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:15:50,054 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:15:50,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:15:50,055 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (1/1) ... [2025-02-08 14:15:50,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:15:50,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:15:50,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:15:50,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:15:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:15:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2025-02-08 14:15:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2025-02-08 14:15:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2025-02-08 14:15:50,120 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2025-02-08 14:15:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:15:50,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:15:50,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:15:50,121 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:15:50,218 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:15:50,219 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:15:50,330 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:15:50,330 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:15:50,425 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:15:50,428 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:15:50,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:15:50 BoogieIcfgContainer [2025-02-08 14:15:50,428 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:15:50,430 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:15:50,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:15:50,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:15:50,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:15:49" (1/3) ... [2025-02-08 14:15:50,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d0e62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:15:50, skipping insertion in model container [2025-02-08 14:15:50,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:15:49" (2/3) ... [2025-02-08 14:15:50,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d0e62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:15:50, skipping insertion in model container [2025-02-08 14:15:50,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:15:50" (3/3) ... [2025-02-08 14:15:50,438 INFO L128 eAbstractionObserver]: Analyzing ICFG unwind1-100.i [2025-02-08 14:15:50,450 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:15:50,452 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG unwind1-100.i that has 3 procedures, 26 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-02-08 14:15:50,452 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:15:50,489 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 14:15:50,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 68 flow [2025-02-08 14:15:50,534 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2025-02-08 14:15:50,535 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:15:50,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 2/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2025-02-08 14:15:50,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 27 transitions, 68 flow [2025-02-08 14:15:50,539 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 55 flow [2025-02-08 14:15:50,550 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:15:50,560 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;@192528f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:15:50,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-02-08 14:15:50,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:15:50,568 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-08 14:15:50,568 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:15:50,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:50,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:15:50,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:50,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 182221678, now seen corresponding path program 1 times [2025-02-08 14:15:50,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:50,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586405298] [2025-02-08 14:15:50,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:50,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:50,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:15:50,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:15:50,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:50,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:50,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:50,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:50,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586405298] [2025-02-08 14:15:50,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586405298] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:15:50,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:15:50,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:15:50,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484376700] [2025-02-08 14:15:50,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:15:50,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:15:50,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:50,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:15:50,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:15:50,817 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-02-08 14:15:50,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2025-02-08 14:15:50,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:50,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-02-08 14:15:50,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:50,886 INFO L124 PetriNetUnfolderBase]: 103/224 cut-off events. [2025-02-08 14:15:50,886 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-02-08 14:15:50,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 224 events. 103/224 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 935 event pairs, 78 based on Foata normal form. 10/191 useless extension candidates. Maximal degree in co-relation 396. Up to 178 conditions per place. [2025-02-08 14:15:50,889 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 16 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2025-02-08 14:15:50,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 87 flow [2025-02-08 14:15:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:15:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:15:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2025-02-08 14:15:50,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2025-02-08 14:15:50,899 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 55 flow. Second operand 3 states and 39 transitions. [2025-02-08 14:15:50,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 87 flow [2025-02-08 14:15:50,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:15:50,903 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2025-02-08 14:15:50,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2025-02-08 14:15:50,907 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2025-02-08 14:15:50,907 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2025-02-08 14:15:50,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2025-02-08 14:15:50,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:50,907 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:15:50,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:15:50,908 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:50,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1353904869, now seen corresponding path program 1 times [2025-02-08 14:15:50,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:50,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796227787] [2025-02-08 14:15:50,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:50,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:50,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:15:50,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:15:50,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:50,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:50,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:50,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796227787] [2025-02-08 14:15:50,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796227787] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:15:50,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:15:50,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:15:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349225280] [2025-02-08 14:15:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:15:50,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:15:50,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:50,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:15:50,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:15:50,964 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-02-08 14:15:50,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2025-02-08 14:15:50,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:50,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-02-08 14:15:50,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:51,025 INFO L124 PetriNetUnfolderBase]: 89/194 cut-off events. [2025-02-08 14:15:51,026 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 14:15:51,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 194 events. 89/194 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 745 event pairs, 66 based on Foata normal form. 9/165 useless extension candidates. Maximal degree in co-relation 359. Up to 154 conditions per place. [2025-02-08 14:15:51,027 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 1/21 dead transitions. [2025-02-08 14:15:51,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 80 flow [2025-02-08 14:15:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:15:51,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:15:51,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2025-02-08 14:15:51,028 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2025-02-08 14:15:51,029 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 38 transitions. [2025-02-08 14:15:51,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 80 flow [2025-02-08 14:15:51,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 79 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:15:51,030 INFO L231 Difference]: Finished difference. Result has 26 places, 20 transitions, 47 flow [2025-02-08 14:15:51,030 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=26, PETRI_TRANSITIONS=20} [2025-02-08 14:15:51,030 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2025-02-08 14:15:51,030 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 20 transitions, 47 flow [2025-02-08 14:15:51,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2025-02-08 14:15:51,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:51,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:15:51,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:15:51,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:51,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -991992137, now seen corresponding path program 1 times [2025-02-08 14:15:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:51,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91364776] [2025-02-08 14:15:51,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:51,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:51,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:15:51,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:15:51,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:51,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:51,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:51,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91364776] [2025-02-08 14:15:51,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91364776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:15:51,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:15:51,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:15:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695438537] [2025-02-08 14:15:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:15:51,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:15:51,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:51,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:15:51,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:15:51,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-02-08 14:15:51,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 20 transitions, 47 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2025-02-08 14:15:51,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:51,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-02-08 14:15:51,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:51,254 INFO L124 PetriNetUnfolderBase]: 146/279 cut-off events. [2025-02-08 14:15:51,254 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 14:15:51,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 279 events. 146/279 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 958 event pairs, 83 based on Foata normal form. 13/261 useless extension candidates. Maximal degree in co-relation 540. Up to 187 conditions per place. [2025-02-08 14:15:51,256 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 32 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2025-02-08 14:15:51,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 38 transitions, 155 flow [2025-02-08 14:15:51,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:15:51,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:15:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 65 transitions. [2025-02-08 14:15:51,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2025-02-08 14:15:51,257 INFO L175 Difference]: Start difference. First operand has 26 places, 20 transitions, 47 flow. Second operand 4 states and 65 transitions. [2025-02-08 14:15:51,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 38 transitions, 155 flow [2025-02-08 14:15:51,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:15:51,259 INFO L231 Difference]: Finished difference. Result has 29 places, 22 transitions, 68 flow [2025-02-08 14:15:51,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=29, PETRI_TRANSITIONS=22} [2025-02-08 14:15:51,260 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2025-02-08 14:15:51,260 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 22 transitions, 68 flow [2025-02-08 14:15:51,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2025-02-08 14:15:51,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:51,260 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:15:51,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:15:51,260 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:51,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:51,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1232365159, now seen corresponding path program 1 times [2025-02-08 14:15:51,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:51,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314492568] [2025-02-08 14:15:51,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:51,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:51,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:15:51,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:15:51,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:51,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:15:51,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:51,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314492568] [2025-02-08 14:15:51,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314492568] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:15:51,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:15:51,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:15:51,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275209137] [2025-02-08 14:15:51,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:15:51,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:15:51,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:51,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:15:51,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:15:51,344 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2025-02-08 14:15:51,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2025-02-08 14:15:51,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:51,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2025-02-08 14:15:51,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:51,418 INFO L124 PetriNetUnfolderBase]: 58/140 cut-off events. [2025-02-08 14:15:51,419 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-02-08 14:15:51,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 330 conditions, 140 events. 58/140 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 419 event pairs, 21 based on Foata normal form. 13/144 useless extension candidates. Maximal degree in co-relation 321. Up to 65 conditions per place. [2025-02-08 14:15:51,420 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 17 selfloop transitions, 3 changer transitions 10/35 dead transitions. [2025-02-08 14:15:51,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 35 transitions, 160 flow [2025-02-08 14:15:51,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:15:51,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:15:51,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 75 transitions. [2025-02-08 14:15:51,421 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2025-02-08 14:15:51,421 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 68 flow. Second operand 5 states and 75 transitions. [2025-02-08 14:15:51,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 35 transitions, 160 flow [2025-02-08 14:15:51,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 35 transitions, 157 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:15:51,422 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 81 flow [2025-02-08 14:15:51,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=81, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2025-02-08 14:15:51,423 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2025-02-08 14:15:51,423 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 81 flow [2025-02-08 14:15:51,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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) [2025-02-08 14:15:51,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:51,423 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:15:51,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:15:51,424 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:51,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:51,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1039213613, now seen corresponding path program 1 times [2025-02-08 14:15:51,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:51,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440184819] [2025-02-08 14:15:51,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:51,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:51,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:15:51,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:15:51,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:51,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:51,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440184819] [2025-02-08 14:15:51,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440184819] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:15:51,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018269060] [2025-02-08 14:15:51,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:51,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:15:51,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:15:51,503 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:15:51,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:15:51,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:15:51,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:15:51,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:51,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:51,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:15:51,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:15:51,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:51,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:15:51,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018269060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:15:51,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:15:51,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-08 14:15:51,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516168856] [2025-02-08 14:15:51,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:15:51,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:15:51,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:51,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:15:51,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:15:51,597 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-02-08 14:15:51,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 81 flow. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2025-02-08 14:15:51,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:51,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-02-08 14:15:51,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:51,674 INFO L124 PetriNetUnfolderBase]: 49/114 cut-off events. [2025-02-08 14:15:51,675 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-02-08 14:15:51,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 114 events. 49/114 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 281 event pairs, 15 based on Foata normal form. 5/108 useless extension candidates. Maximal degree in co-relation 291. Up to 46 conditions per place. [2025-02-08 14:15:51,676 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 25 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2025-02-08 14:15:51,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 165 flow [2025-02-08 14:15:51,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:15:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:15:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 73 transitions. [2025-02-08 14:15:51,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4506172839506173 [2025-02-08 14:15:51,677 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 81 flow. Second operand 6 states and 73 transitions. [2025-02-08 14:15:51,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 165 flow [2025-02-08 14:15:51,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 155 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-08 14:15:51,678 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 77 flow [2025-02-08 14:15:51,678 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2025-02-08 14:15:51,678 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2025-02-08 14:15:51,678 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 77 flow [2025-02-08 14:15:51,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 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) [2025-02-08 14:15:51,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:51,679 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:15:51,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 14:15:51,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:15:51,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:51,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2144116519, now seen corresponding path program 1 times [2025-02-08 14:15:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964635215] [2025-02-08 14:15:51,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:51,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:15:51,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:15:51,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:51,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:51,945 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:51,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964635215] [2025-02-08 14:15:51,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964635215] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:15:51,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077664893] [2025-02-08 14:15:51,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:15:51,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:15:51,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:15:51,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:15:51,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:15:51,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 14:15:51,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 14:15:51,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:15:51,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:51,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:15:51,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:15:52,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:52,026 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:15:52,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:15:52,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077664893] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:15:52,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:15:52,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-08 14:15:52,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848786936] [2025-02-08 14:15:52,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:15:52,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-08 14:15:52,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:52,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-08 14:15:52,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-08 14:15:52,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 27 [2025-02-08 14:15:52,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 77 flow. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2025-02-08 14:15:52,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:52,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 27 [2025-02-08 14:15:52,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:52,246 INFO L124 PetriNetUnfolderBase]: 79/189 cut-off events. [2025-02-08 14:15:52,246 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2025-02-08 14:15:52,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 503 conditions, 189 events. 79/189 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 477 event pairs, 30 based on Foata normal form. 15/198 useless extension candidates. Maximal degree in co-relation 493. Up to 81 conditions per place. [2025-02-08 14:15:52,248 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 39 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2025-02-08 14:15:52,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 265 flow [2025-02-08 14:15:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:15:52,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:15:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 121 transitions. [2025-02-08 14:15:52,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44814814814814813 [2025-02-08 14:15:52,251 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 77 flow. Second operand 10 states and 121 transitions. [2025-02-08 14:15:52,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 265 flow [2025-02-08 14:15:52,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 239 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-08 14:15:52,252 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 121 flow [2025-02-08 14:15:52,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2025-02-08 14:15:52,253 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2025-02-08 14:15:52,253 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 121 flow [2025-02-08 14:15:52,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2025-02-08 14:15:52,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:15:52,253 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:15:52,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 14:15:52,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:15:52,454 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2025-02-08 14:15:52,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:15:52,454 INFO L85 PathProgramCache]: Analyzing trace with hash 324520751, now seen corresponding path program 2 times [2025-02-08 14:15:52,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:15:52,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331835004] [2025-02-08 14:15:52,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:15:52,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:15:52,460 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-08 14:15:52,462 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 23 statements. [2025-02-08 14:15:52,462 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:15:52,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:15:52,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:15:52,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331835004] [2025-02-08 14:15:52,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331835004] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:15:52,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450881278] [2025-02-08 14:15:52,496 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:15:52,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:15:52,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:15:52,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:15:52,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 14:15:52,533 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 2 equivalence classes. [2025-02-08 14:15:52,540 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 23 statements. [2025-02-08 14:15:52,541 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 14:15:52,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:15:52,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:15:52,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:15:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:15:52,573 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:15:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-08 14:15:52,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450881278] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:15:52,649 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:15:52,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-02-08 14:15:52,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982254726] [2025-02-08 14:15:52,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:15:52,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 14:15:52,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:15:52,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 14:15:52,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-08 14:15:52,682 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2025-02-08 14:15:52,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 121 flow. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2025-02-08 14:15:52,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:15:52,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2025-02-08 14:15:52,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:15:52,804 INFO L124 PetriNetUnfolderBase]: 134/325 cut-off events. [2025-02-08 14:15:52,804 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2025-02-08 14:15:52,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 325 events. 134/325 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1153 event pairs, 18 based on Foata normal form. 10/330 useless extension candidates. Maximal degree in co-relation 873. Up to 55 conditions per place. [2025-02-08 14:15:52,805 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2025-02-08 14:15:52,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 328 flow [2025-02-08 14:15:52,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:15:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:15:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2025-02-08 14:15:52,806 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.32407407407407407 [2025-02-08 14:15:52,806 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 121 flow. Second operand 8 states and 70 transitions. [2025-02-08 14:15:52,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 328 flow [2025-02-08 14:15:52,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 288 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 14:15:52,808 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2025-02-08 14:15:52,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2025-02-08 14:15:52,808 INFO L279 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2025-02-08 14:15:52,808 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2025-02-08 14:15:52,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2025-02-08 14:15:52,810 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2025-02-08 14:15:52,811 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2025-02-08 14:15:52,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 14:15:53,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:15:53,012 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2025-02-08 14:15:53,015 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:15:53,015 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:15:53,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:15:53 BasicIcfg [2025-02-08 14:15:53,019 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:15:53,019 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:15:53,019 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:15:53,019 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:15:53,020 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:15:50" (3/4) ... [2025-02-08 14:15:53,021 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:15:53,022 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2025-02-08 14:15:53,023 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2025-02-08 14:15:53,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 14:15:53,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-02-08 14:15:53,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 14:15:53,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:15:53,076 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:15:53,076 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:15:53,076 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:15:53,077 INFO L158 Benchmark]: Toolchain (without parser) took 3522.56ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 73.0MB in the end (delta: 57.6MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2025-02-08 14:15:53,077 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:15:53,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 415.44ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 110.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:15:53,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.35ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:15:53,078 INFO L158 Benchmark]: Boogie Preprocessor took 45.31ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 108.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:15:53,078 INFO L158 Benchmark]: IcfgBuilder took 374.27ms. Allocated memory is still 167.8MB. Free memory was 107.5MB in the beginning and 87.3MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:15:53,079 INFO L158 Benchmark]: TraceAbstraction took 2588.68ms. Allocated memory is still 167.8MB. Free memory was 86.9MB in the beginning and 78.5MB in the end (delta: 8.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2025-02-08 14:15:53,079 INFO L158 Benchmark]: Witness Printer took 57.10ms. Allocated memory is still 167.8MB. Free memory was 78.5MB in the beginning and 73.0MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:15:53,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 201.3MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 415.44ms. Allocated memory is still 167.8MB. Free memory was 130.6MB in the beginning and 110.7MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.35ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.31ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 108.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 374.27ms. Allocated memory is still 167.8MB. Free memory was 107.5MB in the beginning and 87.3MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2588.68ms. Allocated memory is still 167.8MB. Free memory was 86.9MB in the beginning and 78.5MB in the end (delta: 8.4MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Witness Printer took 57.10ms. Allocated memory is still 167.8MB. Free memory was 78.5MB in the beginning and 73.0MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 10 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: 2.5s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 244 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 574 IncrementalHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 7 mSDtfsCounter, 574 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=6, InterpolantAutomatonStates: 39, 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, 0.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 9 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 70/105 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:15:53,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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