./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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-C-DAC/pthread-demo-datarace-1.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 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:42:17,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:42:17,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:42:17,793 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:42:17,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:42:17,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:42:17,828 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:42:17,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:42:17,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:42:17,829 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:42:17,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:42:17,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:42:17,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:42:17,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:42:17,830 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:42:17,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:42:17,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:42:17,831 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:42:17,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:42:17,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:42:17,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:42:17,832 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:42:17,833 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:42:17,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:42:17,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:42:17,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:42:17,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:17,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:42:17,834 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:42:17,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:42:17,835 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 -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2025-02-06 18:42:18,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:42:18,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:42:18,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:42:18,129 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:42:18,129 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:42:18,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2025-02-06 18:42:19,406 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef907aa36/8a38958b615b44868a24276e372e49b5/FLAG345f36645 [2025-02-06 18:42:19,763 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:42:19,766 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2025-02-06 18:42:19,787 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef907aa36/8a38958b615b44868a24276e372e49b5/FLAG345f36645 [2025-02-06 18:42:19,972 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef907aa36/8a38958b615b44868a24276e372e49b5 [2025-02-06 18:42:19,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:42:19,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:42:19,980 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:19,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:42:19,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:42:19,986 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:19" (1/1) ... [2025-02-06 18:42:19,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7750b596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:19, skipping insertion in model container [2025-02-06 18:42:19,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:42:19" (1/1) ... [2025-02-06 18:42:20,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:42:20,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:20,602 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:42:20,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:42:20,725 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:42:20,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20 WrapperNode [2025-02-06 18:42:20,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:42:20,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:20,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:42:20,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:42:20,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,751 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,776 INFO L138 Inliner]: procedures = 364, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2025-02-06 18:42:20,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:42:20,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:42:20,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:42:20,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:42:20,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,810 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2025-02-06 18:42:20,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:42:20,826 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:42:20,826 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:42:20,827 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:42:20,827 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (1/1) ... [2025-02-06 18:42:20,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:42:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:20,864 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) [2025-02-06 18:42:20,868 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 [2025-02-06 18:42:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:42:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:42:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:42:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2025-02-06 18:42:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2025-02-06 18:42:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:42:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:42:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:42:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:42:20,890 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:42:21,027 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:42:21,029 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:42:21,220 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:42:21,221 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:42:21,339 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:42:21,339 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:42:21,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:21 BoogieIcfgContainer [2025-02-06 18:42:21,339 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:42:21,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:42:21,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:42:21,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:42:21,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:42:19" (1/3) ... [2025-02-06 18:42:21,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54db8e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:42:21, skipping insertion in model container [2025-02-06 18:42:21,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:42:20" (2/3) ... [2025-02-06 18:42:21,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54db8e0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:42:21, skipping insertion in model container [2025-02-06 18:42:21,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:42:21" (3/3) ... [2025-02-06 18:42:21,350 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2025-02-06 18:42:21,363 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:42:21,366 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-1.i that has 2 procedures, 34 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-02-06 18:42:21,367 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:42:21,406 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-06 18:42:21,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 35 transitions, 77 flow [2025-02-06 18:42:21,476 INFO L124 PetriNetUnfolderBase]: 2/34 cut-off events. [2025-02-06 18:42:21,478 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 18:42:21,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 34 events. 2/34 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 75 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2025-02-06 18:42:21,481 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 35 transitions, 77 flow [2025-02-06 18:42:21,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 32 transitions, 67 flow [2025-02-06 18:42:21,497 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:42:21,510 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;@7df4f44b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:42:21,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-02-06 18:42:21,517 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:42:21,517 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-06 18:42:21,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:42:21,517 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:21,522 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:21,522 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:21,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1958380184, now seen corresponding path program 1 times [2025-02-06 18:42:21,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:21,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141950008] [2025-02-06 18:42:21,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:21,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:21,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:42:21,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:42:21,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:21,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:21,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:21,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141950008] [2025-02-06 18:42:21,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141950008] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:21,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:21,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:42:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755623211] [2025-02-06 18:42:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:21,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:42:21,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:21,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:42:21,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:42:21,769 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2025-02-06 18:42:21,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 32 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2025-02-06 18:42:21,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:21,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2025-02-06 18:42:21,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:21,883 INFO L124 PetriNetUnfolderBase]: 79/235 cut-off events. [2025-02-06 18:42:21,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:42:21,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 398 conditions, 235 events. 79/235 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1050 event pairs, 26 based on Foata normal form. 3/203 useless extension candidates. Maximal degree in co-relation 389. Up to 135 conditions per place. [2025-02-06 18:42:21,894 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 23 selfloop transitions, 3 changer transitions 0/40 dead transitions. [2025-02-06 18:42:21,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 40 transitions, 135 flow [2025-02-06 18:42:21,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:42:21,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:42:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 73 transitions. [2025-02-06 18:42:21,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6952380952380952 [2025-02-06 18:42:21,907 INFO L175 Difference]: Start difference. First operand has 34 places, 32 transitions, 67 flow. Second operand 3 states and 73 transitions. [2025-02-06 18:42:21,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 40 transitions, 135 flow [2025-02-06 18:42:21,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 40 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:21,914 INFO L231 Difference]: Finished difference. Result has 36 places, 34 transitions, 87 flow [2025-02-06 18:42:21,916 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=36, PETRI_TRANSITIONS=34} [2025-02-06 18:42:21,920 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 2 predicate places. [2025-02-06 18:42:21,922 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 34 transitions, 87 flow [2025-02-06 18:42:21,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2025-02-06 18:42:21,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:21,922 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:21,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:42:21,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:21,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1932099409, now seen corresponding path program 1 times [2025-02-06 18:42:21,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:21,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438608151] [2025-02-06 18:42:21,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:21,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:21,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 18:42:21,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 18:42:21,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:21,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:22,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:22,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:22,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438608151] [2025-02-06 18:42:22,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438608151] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:22,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:22,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:42:22,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419521033] [2025-02-06 18:42:22,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:22,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:42:22,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:22,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:42:22,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:42:22,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:22,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 34 transitions, 87 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2025-02-06 18:42:22,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:22,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:22,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:22,227 INFO L124 PetriNetUnfolderBase]: 102/272 cut-off events. [2025-02-06 18:42:22,231 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-02-06 18:42:22,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 272 events. 102/272 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1268 event pairs, 34 based on Foata normal form. 20/262 useless extension candidates. Maximal degree in co-relation 536. Up to 173 conditions per place. [2025-02-06 18:42:22,234 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 33 selfloop transitions, 6 changer transitions 0/51 dead transitions. [2025-02-06 18:42:22,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 210 flow [2025-02-06 18:42:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:42:22,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:42:22,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2025-02-06 18:42:22,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6171428571428571 [2025-02-06 18:42:22,239 INFO L175 Difference]: Start difference. First operand has 36 places, 34 transitions, 87 flow. Second operand 5 states and 108 transitions. [2025-02-06 18:42:22,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 210 flow [2025-02-06 18:42:22,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 51 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:22,241 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 126 flow [2025-02-06 18:42:22,241 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2025-02-06 18:42:22,243 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2025-02-06 18:42:22,244 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 126 flow [2025-02-06 18:42:22,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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) [2025-02-06 18:42:22,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:22,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:22,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:42:22,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:22,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:22,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1201262833, now seen corresponding path program 1 times [2025-02-06 18:42:22,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:22,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686304433] [2025-02-06 18:42:22,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:22,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:22,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:42:22,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:42:22,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:22,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:22,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:22,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:22,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686304433] [2025-02-06 18:42:22,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686304433] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:22,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:22,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:22,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064937380] [2025-02-06 18:42:22,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:22,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:42:22,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:22,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:42:22,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:42:22,349 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2025-02-06 18:42:22,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2025-02-06 18:42:22,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:22,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2025-02-06 18:42:22,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:22,504 INFO L124 PetriNetUnfolderBase]: 117/340 cut-off events. [2025-02-06 18:42:22,505 INFO L125 PetriNetUnfolderBase]: For 131/141 co-relation queries the response was YES. [2025-02-06 18:42:22,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 340 events. 117/340 cut-off events. For 131/141 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1625 event pairs, 39 based on Foata normal form. 14/330 useless extension candidates. Maximal degree in co-relation 729. Up to 132 conditions per place. [2025-02-06 18:42:22,511 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 39 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2025-02-06 18:42:22,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 56 transitions, 263 flow [2025-02-06 18:42:22,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:42:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:42:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2025-02-06 18:42:22,513 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2025-02-06 18:42:22,513 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 126 flow. Second operand 4 states and 99 transitions. [2025-02-06 18:42:22,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 56 transitions, 263 flow [2025-02-06 18:42:22,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 56 transitions, 253 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:22,517 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 142 flow [2025-02-06 18:42:22,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2025-02-06 18:42:22,518 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 11 predicate places. [2025-02-06 18:42:22,518 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 142 flow [2025-02-06 18:42:22,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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) [2025-02-06 18:42:22,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:22,518 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:22,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:42:22,522 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:22,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:22,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1212658282, now seen corresponding path program 1 times [2025-02-06 18:42:22,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:22,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398724313] [2025-02-06 18:42:22,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:22,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:22,534 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:42:22,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:42:22,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:22,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:22,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:22,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398724313] [2025-02-06 18:42:22,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398724313] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:22,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:22,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:22,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062392447] [2025-02-06 18:42:22,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:22,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:42:22,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:22,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:42:22,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:42:22,620 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2025-02-06 18:42:22,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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) [2025-02-06 18:42:22,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:22,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2025-02-06 18:42:22,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:22,741 INFO L124 PetriNetUnfolderBase]: 217/598 cut-off events. [2025-02-06 18:42:22,741 INFO L125 PetriNetUnfolderBase]: For 394/457 co-relation queries the response was YES. [2025-02-06 18:42:22,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1380 conditions, 598 events. 217/598 cut-off events. For 394/457 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3105 event pairs, 79 based on Foata normal form. 29/608 useless extension candidates. Maximal degree in co-relation 1364. Up to 278 conditions per place. [2025-02-06 18:42:22,747 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 52 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2025-02-06 18:42:22,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 371 flow [2025-02-06 18:42:22,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:42:22,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:42:22,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2025-02-06 18:42:22,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2025-02-06 18:42:22,749 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 142 flow. Second operand 4 states and 99 transitions. [2025-02-06 18:42:22,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 371 flow [2025-02-06 18:42:22,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 365 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:22,754 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 164 flow [2025-02-06 18:42:22,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2025-02-06 18:42:22,754 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 15 predicate places. [2025-02-06 18:42:22,754 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 164 flow [2025-02-06 18:42:22,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 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) [2025-02-06 18:42:22,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:22,756 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:22,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:42:22,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:22,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:22,757 INFO L85 PathProgramCache]: Analyzing trace with hash -967481885, now seen corresponding path program 1 times [2025-02-06 18:42:22,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:22,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887843005] [2025-02-06 18:42:22,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:22,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:22,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 18:42:22,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 18:42:22,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:22,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:22,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:22,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887843005] [2025-02-06 18:42:22,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887843005] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:22,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:22,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:22,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732832164] [2025-02-06 18:42:22,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:22,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:42:22,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:22,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:42:22,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:42:22,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 35 [2025-02-06 18:42:22,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:22,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:22,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 35 [2025-02-06 18:42:22,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:22,961 INFO L124 PetriNetUnfolderBase]: 111/407 cut-off events. [2025-02-06 18:42:22,961 INFO L125 PetriNetUnfolderBase]: For 268/284 co-relation queries the response was YES. [2025-02-06 18:42:22,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1007 conditions, 407 events. 111/407 cut-off events. For 268/284 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1922 event pairs, 37 based on Foata normal form. 20/425 useless extension candidates. Maximal degree in co-relation 989. Up to 128 conditions per place. [2025-02-06 18:42:22,964 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 30 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2025-02-06 18:42:22,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 50 transitions, 269 flow [2025-02-06 18:42:22,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:42:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:42:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 76 transitions. [2025-02-06 18:42:22,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7238095238095238 [2025-02-06 18:42:22,965 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 164 flow. Second operand 3 states and 76 transitions. [2025-02-06 18:42:22,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 50 transitions, 269 flow [2025-02-06 18:42:22,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 50 transitions, 259 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:22,969 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 151 flow [2025-02-06 18:42:22,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2025-02-06 18:42:22,969 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 14 predicate places. [2025-02-06 18:42:22,969 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 151 flow [2025-02-06 18:42:22,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:22,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:22,970 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:22,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:42:22,970 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:22,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:22,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1715226317, now seen corresponding path program 1 times [2025-02-06 18:42:22,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:22,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970336219] [2025-02-06 18:42:22,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:22,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:22,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:42:22,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:42:22,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:22,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:23,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:23,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970336219] [2025-02-06 18:42:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970336219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:23,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:23,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292144362] [2025-02-06 18:42:23,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:23,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:42:23,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:23,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:42:23,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:42:23,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:23,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:23,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:23,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:23,203 INFO L124 PetriNetUnfolderBase]: 206/602 cut-off events. [2025-02-06 18:42:23,203 INFO L125 PetriNetUnfolderBase]: For 412/448 co-relation queries the response was YES. [2025-02-06 18:42:23,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 602 events. 206/602 cut-off events. For 412/448 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3173 event pairs, 81 based on Foata normal form. 10/587 useless extension candidates. Maximal degree in co-relation 1594. Up to 223 conditions per place. [2025-02-06 18:42:23,210 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 46 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2025-02-06 18:42:23,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 64 transitions, 359 flow [2025-02-06 18:42:23,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:42:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:42:23,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2025-02-06 18:42:23,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-02-06 18:42:23,212 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 151 flow. Second operand 5 states and 110 transitions. [2025-02-06 18:42:23,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 64 transitions, 359 flow [2025-02-06 18:42:23,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 64 transitions, 349 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:23,216 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 180 flow [2025-02-06 18:42:23,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=180, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2025-02-06 18:42:23,217 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2025-02-06 18:42:23,217 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 180 flow [2025-02-06 18:42:23,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:23,217 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:23,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:42:23,219 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:23,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1217329078, now seen corresponding path program 1 times [2025-02-06 18:42:23,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:23,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144186781] [2025-02-06 18:42:23,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:23,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:23,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:42:23,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:42:23,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:23,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:23,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:23,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:23,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144186781] [2025-02-06 18:42:23,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144186781] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:23,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:23,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:23,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824472010] [2025-02-06 18:42:23,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:23,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:42:23,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:23,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:42:23,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:42:23,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:23,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:23,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:23,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:23,484 INFO L124 PetriNetUnfolderBase]: 245/768 cut-off events. [2025-02-06 18:42:23,484 INFO L125 PetriNetUnfolderBase]: For 731/762 co-relation queries the response was YES. [2025-02-06 18:42:23,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 768 events. 245/768 cut-off events. For 731/762 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4363 event pairs, 105 based on Foata normal form. 16/773 useless extension candidates. Maximal degree in co-relation 2015. Up to 272 conditions per place. [2025-02-06 18:42:23,490 INFO L140 encePairwiseOnDemand]: 27/35 looper letters, 65 selfloop transitions, 7 changer transitions 0/84 dead transitions. [2025-02-06 18:42:23,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 84 transitions, 509 flow [2025-02-06 18:42:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:42:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:42:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2025-02-06 18:42:23,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2025-02-06 18:42:23,491 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 180 flow. Second operand 6 states and 135 transitions. [2025-02-06 18:42:23,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 84 transitions, 509 flow [2025-02-06 18:42:23,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 504 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:23,495 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 233 flow [2025-02-06 18:42:23,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2025-02-06 18:42:23,496 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 25 predicate places. [2025-02-06 18:42:23,496 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 233 flow [2025-02-06 18:42:23,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:23,496 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:23,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:42:23,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:23,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:23,497 INFO L85 PathProgramCache]: Analyzing trace with hash -959509969, now seen corresponding path program 1 times [2025-02-06 18:42:23,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:23,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554210192] [2025-02-06 18:42:23,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:23,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:23,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 18:42:23,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 18:42:23,512 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:23,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:23,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:23,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:23,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554210192] [2025-02-06 18:42:23,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554210192] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:23,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:23,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:23,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133038567] [2025-02-06 18:42:23,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:23,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:42:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:23,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:42:23,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:42:23,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:23,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:23,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:23,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:23,734 INFO L124 PetriNetUnfolderBase]: 244/721 cut-off events. [2025-02-06 18:42:23,735 INFO L125 PetriNetUnfolderBase]: For 1022/1093 co-relation queries the response was YES. [2025-02-06 18:42:23,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 721 events. 244/721 cut-off events. For 1022/1093 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3878 event pairs, 100 based on Foata normal form. 5/724 useless extension candidates. Maximal degree in co-relation 2053. Up to 447 conditions per place. [2025-02-06 18:42:23,743 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 51 selfloop transitions, 7 changer transitions 0/70 dead transitions. [2025-02-06 18:42:23,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 70 transitions, 464 flow [2025-02-06 18:42:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:42:23,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:42:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2025-02-06 18:42:23,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-02-06 18:42:23,745 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 233 flow. Second operand 5 states and 110 transitions. [2025-02-06 18:42:23,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 70 transitions, 464 flow [2025-02-06 18:42:23,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 70 transitions, 457 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:23,751 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 267 flow [2025-02-06 18:42:23,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=267, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2025-02-06 18:42:23,754 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 29 predicate places. [2025-02-06 18:42:23,754 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 267 flow [2025-02-06 18:42:23,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,754 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:23,754 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:23,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:42:23,754 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:23,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash 917504451, now seen corresponding path program 1 times [2025-02-06 18:42:23,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:23,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155808350] [2025-02-06 18:42:23,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:23,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 18:42:23,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 18:42:23,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:23,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:23,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155808350] [2025-02-06 18:42:23,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155808350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:23,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:23,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:23,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832013484] [2025-02-06 18:42:23,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:23,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:42:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:23,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:42:23,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:42:23,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:23,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:23,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:23,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:23,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:23,993 INFO L124 PetriNetUnfolderBase]: 242/799 cut-off events. [2025-02-06 18:42:23,993 INFO L125 PetriNetUnfolderBase]: For 1207/1214 co-relation queries the response was YES. [2025-02-06 18:42:23,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2272 conditions, 799 events. 242/799 cut-off events. For 1207/1214 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4815 event pairs, 121 based on Foata normal form. 3/792 useless extension candidates. Maximal degree in co-relation 2245. Up to 457 conditions per place. [2025-02-06 18:42:23,999 INFO L140 encePairwiseOnDemand]: 28/35 looper letters, 50 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2025-02-06 18:42:23,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 71 transitions, 494 flow [2025-02-06 18:42:23,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 18:42:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 18:42:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 137 transitions. [2025-02-06 18:42:24,000 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5591836734693878 [2025-02-06 18:42:24,001 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 267 flow. Second operand 7 states and 137 transitions. [2025-02-06 18:42:24,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 71 transitions, 494 flow [2025-02-06 18:42:24,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 71 transitions, 481 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:24,005 INFO L231 Difference]: Finished difference. Result has 69 places, 50 transitions, 310 flow [2025-02-06 18:42:24,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=310, PETRI_PLACES=69, PETRI_TRANSITIONS=50} [2025-02-06 18:42:24,006 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 35 predicate places. [2025-02-06 18:42:24,006 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 50 transitions, 310 flow [2025-02-06 18:42:24,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:24,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:24,006 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:24,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 18:42:24,006 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread_function_mutexErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:24,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:24,007 INFO L85 PathProgramCache]: Analyzing trace with hash 660579815, now seen corresponding path program 1 times [2025-02-06 18:42:24,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048481728] [2025-02-06 18:42:24,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:24,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:24,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:42:24,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:42:24,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:24,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:24,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:24,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048481728] [2025-02-06 18:42:24,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048481728] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:24,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399685182] [2025-02-06 18:42:24,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:24,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:24,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:24,134 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) [2025-02-06 18:42:24,135 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 [2025-02-06 18:42:24,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 18:42:24,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 18:42:24,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:24,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:24,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:42:24,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:24,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:42:24,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399685182] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:24,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:42:24,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2025-02-06 18:42:24,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323149071] [2025-02-06 18:42:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:24,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:42:24,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:24,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:42:24,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:42:24,306 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 35 [2025-02-06 18:42:24,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 50 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2025-02-06 18:42:24,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:24,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 35 [2025-02-06 18:42:24,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:24,442 INFO L124 PetriNetUnfolderBase]: 245/733 cut-off events. [2025-02-06 18:42:24,442 INFO L125 PetriNetUnfolderBase]: For 1252/1296 co-relation queries the response was YES. [2025-02-06 18:42:24,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 733 events. 245/733 cut-off events. For 1252/1296 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4112 event pairs, 119 based on Foata normal form. 22/745 useless extension candidates. Maximal degree in co-relation 2124. Up to 485 conditions per place. [2025-02-06 18:42:24,447 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 42 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2025-02-06 18:42:24,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 417 flow [2025-02-06 18:42:24,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:42:24,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:42:24,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-02-06 18:42:24,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5571428571428572 [2025-02-06 18:42:24,449 INFO L175 Difference]: Start difference. First operand has 69 places, 50 transitions, 310 flow. Second operand 4 states and 78 transitions. [2025-02-06 18:42:24,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 417 flow [2025-02-06 18:42:24,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 57 transitions, 399 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-02-06 18:42:24,454 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 278 flow [2025-02-06 18:42:24,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2025-02-06 18:42:24,454 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 30 predicate places. [2025-02-06 18:42:24,454 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 278 flow [2025-02-06 18:42:24,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2025-02-06 18:42:24,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:24,455 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:24,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:42:24,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 18:42:24,658 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:24,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -996862010, now seen corresponding path program 1 times [2025-02-06 18:42:24,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:24,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510501436] [2025-02-06 18:42:24,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:24,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:24,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:42:24,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:42:24,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:24,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:24,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510501436] [2025-02-06 18:42:24,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510501436] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:24,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327522082] [2025-02-06 18:42:24,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:24,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:24,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:24,746 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) [2025-02-06 18:42:24,748 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 [2025-02-06 18:42:24,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:42:24,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:42:24,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:24,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:24,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:42:24,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:24,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:42:24,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:24,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327522082] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:42:24,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:42:24,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-02-06 18:42:24,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163154947] [2025-02-06 18:42:24,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:42:24,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:42:24,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:24,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:42:24,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:42:24,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:24,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 278 flow. Second operand has 12 states, 12 states have (on average 15.5) internal successors, (186), 12 states have internal predecessors, (186), 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) [2025-02-06 18:42:24,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:24,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:24,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:25,455 INFO L124 PetriNetUnfolderBase]: 535/1731 cut-off events. [2025-02-06 18:42:25,455 INFO L125 PetriNetUnfolderBase]: For 2766/2896 co-relation queries the response was YES. [2025-02-06 18:42:25,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 1731 events. 535/1731 cut-off events. For 2766/2896 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 12789 event pairs, 86 based on Foata normal form. 66/1784 useless extension candidates. Maximal degree in co-relation 4664. Up to 354 conditions per place. [2025-02-06 18:42:25,469 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 153 selfloop transitions, 28 changer transitions 0/193 dead transitions. [2025-02-06 18:42:25,469 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 193 transitions, 1306 flow [2025-02-06 18:42:25,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 18:42:25,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-06 18:42:25,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 367 transitions. [2025-02-06 18:42:25,471 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6553571428571429 [2025-02-06 18:42:25,471 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 278 flow. Second operand 16 states and 367 transitions. [2025-02-06 18:42:25,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 193 transitions, 1306 flow [2025-02-06 18:42:25,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 193 transitions, 1305 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:42:25,479 INFO L231 Difference]: Finished difference. Result has 86 places, 73 transitions, 584 flow [2025-02-06 18:42:25,479 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=584, PETRI_PLACES=86, PETRI_TRANSITIONS=73} [2025-02-06 18:42:25,480 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 52 predicate places. [2025-02-06 18:42:25,480 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 73 transitions, 584 flow [2025-02-06 18:42:25,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.5) internal successors, (186), 12 states have internal predecessors, (186), 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) [2025-02-06 18:42:25,480 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:25,480 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:25,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 18:42:25,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:25,685 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:25,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:25,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2111989207, now seen corresponding path program 1 times [2025-02-06 18:42:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:25,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701744241] [2025-02-06 18:42:25,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:25,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:25,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:42:25,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:42:25,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:25,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:25,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701744241] [2025-02-06 18:42:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701744241] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153515285] [2025-02-06 18:42:25,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:25,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:25,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:25,761 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) [2025-02-06 18:42:25,764 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 [2025-02-06 18:42:25,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:42:25,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:42:25,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:25,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:25,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:42:25,829 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:25,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:42:25,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153515285] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:25,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:42:25,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:42:25,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944536340] [2025-02-06 18:42:25,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:25,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:42:25,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:25,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:42:25,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:42:25,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 35 [2025-02-06 18:42:25,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 584 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:25,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:25,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 35 [2025-02-06 18:42:25,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:26,168 INFO L124 PetriNetUnfolderBase]: 548/1649 cut-off events. [2025-02-06 18:42:26,168 INFO L125 PetriNetUnfolderBase]: For 3184/3302 co-relation queries the response was YES. [2025-02-06 18:42:26,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4908 conditions, 1649 events. 548/1649 cut-off events. For 3184/3302 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 12006 event pairs, 52 based on Foata normal form. 55/1649 useless extension candidates. Maximal degree in co-relation 4871. Up to 680 conditions per place. [2025-02-06 18:42:26,181 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 115 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2025-02-06 18:42:26,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 136 transitions, 1258 flow [2025-02-06 18:42:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:42:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:42:26,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2025-02-06 18:42:26,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6571428571428571 [2025-02-06 18:42:26,182 INFO L175 Difference]: Start difference. First operand has 86 places, 73 transitions, 584 flow. Second operand 6 states and 138 transitions. [2025-02-06 18:42:26,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 136 transitions, 1258 flow [2025-02-06 18:42:26,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 136 transitions, 1060 flow, removed 84 selfloop flow, removed 6 redundant places. [2025-02-06 18:42:26,196 INFO L231 Difference]: Finished difference. Result has 84 places, 72 transitions, 486 flow [2025-02-06 18:42:26,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2025-02-06 18:42:26,198 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2025-02-06 18:42:26,198 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 72 transitions, 486 flow [2025-02-06 18:42:26,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:26,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:26,198 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:26,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:42:26,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:26,403 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:26,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:26,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1943690934, now seen corresponding path program 1 times [2025-02-06 18:42:26,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:26,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725327625] [2025-02-06 18:42:26,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:26,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:26,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:42:26,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:42:26,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:26,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:26,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725327625] [2025-02-06 18:42:26,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725327625] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548578124] [2025-02-06 18:42:26,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:26,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:26,470 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:42:26,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:42:26,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:42:26,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:42:26,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:26,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:26,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:42:26,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:26,571 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:42:26,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548578124] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:26,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:42:26,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:42:26,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134976143] [2025-02-06 18:42:26,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:26,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:42:26,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:26,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:42:26,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:42:26,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2025-02-06 18:42:26,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-02-06 18:42:26,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:26,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2025-02-06 18:42:26,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:26,857 INFO L124 PetriNetUnfolderBase]: 675/1982 cut-off events. [2025-02-06 18:42:26,857 INFO L125 PetriNetUnfolderBase]: For 3718/3760 co-relation queries the response was YES. [2025-02-06 18:42:26,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5886 conditions, 1982 events. 675/1982 cut-off events. For 3718/3760 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 14790 event pairs, 81 based on Foata normal form. 75/1975 useless extension candidates. Maximal degree in co-relation 5851. Up to 798 conditions per place. [2025-02-06 18:42:26,871 INFO L140 encePairwiseOnDemand]: 31/35 looper letters, 138 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2025-02-06 18:42:26,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 157 transitions, 1331 flow [2025-02-06 18:42:26,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:42:26,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:42:26,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 140 transitions. [2025-02-06 18:42:26,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-06 18:42:26,873 INFO L175 Difference]: Start difference. First operand has 84 places, 72 transitions, 486 flow. Second operand 6 states and 140 transitions. [2025-02-06 18:42:26,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 157 transitions, 1331 flow [2025-02-06 18:42:26,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 157 transitions, 1306 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 18:42:26,884 INFO L231 Difference]: Finished difference. Result has 85 places, 71 transitions, 487 flow [2025-02-06 18:42:26,884 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=85, PETRI_TRANSITIONS=71} [2025-02-06 18:42:26,885 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2025-02-06 18:42:26,885 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 71 transitions, 487 flow [2025-02-06 18:42:26,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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) [2025-02-06 18:42:26,885 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:26,886 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:42:26,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:42:27,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-02-06 18:42:27,086 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:27,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:27,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1047155766, now seen corresponding path program 1 times [2025-02-06 18:42:27,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:27,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077349876] [2025-02-06 18:42:27,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:27,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:27,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 18:42:27,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 18:42:27,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:27,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:42:27,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:27,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077349876] [2025-02-06 18:42:27,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077349876] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:27,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:27,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:27,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254605371] [2025-02-06 18:42:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:27,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:42:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:27,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:42:27,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:42:27,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 35 [2025-02-06 18:42:27,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 71 transitions, 487 flow. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2025-02-06 18:42:27,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:27,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 35 [2025-02-06 18:42:27,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:27,353 INFO L124 PetriNetUnfolderBase]: 605/1811 cut-off events. [2025-02-06 18:42:27,354 INFO L125 PetriNetUnfolderBase]: For 3423/3458 co-relation queries the response was YES. [2025-02-06 18:42:27,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5473 conditions, 1811 events. 605/1811 cut-off events. For 3423/3458 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 13095 event pairs, 133 based on Foata normal form. 55/1866 useless extension candidates. Maximal degree in co-relation 5438. Up to 706 conditions per place. [2025-02-06 18:42:27,365 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 89 selfloop transitions, 6 changer transitions 0/109 dead transitions. [2025-02-06 18:42:27,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 109 transitions, 902 flow [2025-02-06 18:42:27,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:42:27,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:42:27,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2025-02-06 18:42:27,367 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6214285714285714 [2025-02-06 18:42:27,367 INFO L175 Difference]: Start difference. First operand has 85 places, 71 transitions, 487 flow. Second operand 4 states and 87 transitions. [2025-02-06 18:42:27,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 109 transitions, 902 flow [2025-02-06 18:42:27,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 109 transitions, 883 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-06 18:42:27,376 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 494 flow [2025-02-06 18:42:27,376 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=494, PETRI_PLACES=84, PETRI_TRANSITIONS=71} [2025-02-06 18:42:27,377 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2025-02-06 18:42:27,377 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 494 flow [2025-02-06 18:42:27,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2025-02-06 18:42:27,377 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:27,377 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:42:27,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:42:27,377 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:27,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:27,378 INFO L85 PathProgramCache]: Analyzing trace with hash -124876626, now seen corresponding path program 1 times [2025-02-06 18:42:27,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:27,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400933189] [2025-02-06 18:42:27,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:27,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:27,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 18:42:27,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 18:42:27,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:27,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 18:42:27,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:27,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400933189] [2025-02-06 18:42:27,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400933189] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:42:27,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:42:27,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:42:27,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125155291] [2025-02-06 18:42:27,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:42:27,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:42:27,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:27,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:42:27,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:42:27,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:27,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 494 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:27,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:27,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:27,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:27,650 INFO L124 PetriNetUnfolderBase]: 739/2042 cut-off events. [2025-02-06 18:42:27,650 INFO L125 PetriNetUnfolderBase]: For 4550/4554 co-relation queries the response was YES. [2025-02-06 18:42:27,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6504 conditions, 2042 events. 739/2042 cut-off events. For 4550/4554 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 14523 event pairs, 177 based on Foata normal form. 75/2110 useless extension candidates. Maximal degree in co-relation 6470. Up to 824 conditions per place. [2025-02-06 18:42:27,666 INFO L140 encePairwiseOnDemand]: 30/35 looper letters, 112 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2025-02-06 18:42:27,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 131 transitions, 1176 flow [2025-02-06 18:42:27,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:42:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:42:27,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2025-02-06 18:42:27,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-02-06 18:42:27,667 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 494 flow. Second operand 4 states and 88 transitions. [2025-02-06 18:42:27,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 131 transitions, 1176 flow [2025-02-06 18:42:27,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 131 transitions, 1150 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-02-06 18:42:27,679 INFO L231 Difference]: Finished difference. Result has 84 places, 71 transitions, 498 flow [2025-02-06 18:42:27,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=498, PETRI_PLACES=84, PETRI_TRANSITIONS=71} [2025-02-06 18:42:27,680 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 50 predicate places. [2025-02-06 18:42:27,680 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 71 transitions, 498 flow [2025-02-06 18:42:27,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:42:27,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:27,681 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:42:27,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 18:42:27,681 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:27,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash -864707431, now seen corresponding path program 1 times [2025-02-06 18:42:27,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:27,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421451507] [2025-02-06 18:42:27,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:27,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:27,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 18:42:27,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 18:42:27,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:27,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:27,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:27,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421451507] [2025-02-06 18:42:27,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421451507] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:27,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844434862] [2025-02-06 18:42:27,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:27,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:27,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:27,936 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:42:27,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:42:27,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 18:42:28,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 18:42:28,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:28,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:28,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 18:42:28,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:28,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:42:28,269 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:28,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844434862] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:42:28,270 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:42:28,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2025-02-06 18:42:28,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737064687] [2025-02-06 18:42:28,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:42:28,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 18:42:28,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:28,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 18:42:28,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=330, Unknown=0, NotChecked=0, Total=462 [2025-02-06 18:42:28,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:28,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 71 transitions, 498 flow. Second operand has 22 states, 22 states have (on average 15.863636363636363) internal successors, (349), 22 states have internal predecessors, (349), 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) [2025-02-06 18:42:28,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:28,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:28,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:30,460 INFO L124 PetriNetUnfolderBase]: 2847/8721 cut-off events. [2025-02-06 18:42:30,461 INFO L125 PetriNetUnfolderBase]: For 32196/32196 co-relation queries the response was YES. [2025-02-06 18:42:30,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27662 conditions, 8721 events. 2847/8721 cut-off events. For 32196/32196 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 75105 event pairs, 320 based on Foata normal form. 454/9159 useless extension candidates. Maximal degree in co-relation 27628. Up to 1262 conditions per place. [2025-02-06 18:42:30,522 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 541 selfloop transitions, 133 changer transitions 0/684 dead transitions. [2025-02-06 18:42:30,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 684 transitions, 5394 flow [2025-02-06 18:42:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-02-06 18:42:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2025-02-06 18:42:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 1275 transitions. [2025-02-06 18:42:30,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6746031746031746 [2025-02-06 18:42:30,530 INFO L175 Difference]: Start difference. First operand has 84 places, 71 transitions, 498 flow. Second operand 54 states and 1275 transitions. [2025-02-06 18:42:30,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 684 transitions, 5394 flow [2025-02-06 18:42:30,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 684 transitions, 5188 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:42:30,572 INFO L231 Difference]: Finished difference. Result has 171 places, 189 transitions, 1983 flow [2025-02-06 18:42:30,573 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=1983, PETRI_PLACES=171, PETRI_TRANSITIONS=189} [2025-02-06 18:42:30,574 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 137 predicate places. [2025-02-06 18:42:30,574 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 189 transitions, 1983 flow [2025-02-06 18:42:30,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 15.863636363636363) internal successors, (349), 22 states have internal predecessors, (349), 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) [2025-02-06 18:42:30,574 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:30,574 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:42:30,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:42:30,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 18:42:30,775 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:30,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:30,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2107779597, now seen corresponding path program 1 times [2025-02-06 18:42:30,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:30,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953342882] [2025-02-06 18:42:30,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:30,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:30,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 18:42:30,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 18:42:30,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:30,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:31,167 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:31,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:31,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953342882] [2025-02-06 18:42:31,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953342882] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:31,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015544337] [2025-02-06 18:42:31,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:31,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:31,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:31,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:42:31,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:42:31,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 18:42:31,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 18:42:31,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:31,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:31,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 18:42:31,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:31,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:42:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015544337] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:42:31,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:42:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2025-02-06 18:42:31,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158443368] [2025-02-06 18:42:31,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:42:31,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-06 18:42:31,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:31,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-06 18:42:31,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=511, Unknown=0, NotChecked=0, Total=756 [2025-02-06 18:42:31,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:31,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 189 transitions, 1983 flow. Second operand has 28 states, 28 states have (on average 16.607142857142858) internal successors, (465), 28 states have internal predecessors, (465), 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) [2025-02-06 18:42:31,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:31,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:31,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:42:38,428 INFO L124 PetriNetUnfolderBase]: 10347/32337 cut-off events. [2025-02-06 18:42:38,428 INFO L125 PetriNetUnfolderBase]: For 673066/673066 co-relation queries the response was YES. [2025-02-06 18:42:38,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106278 conditions, 32337 events. 10347/32337 cut-off events. For 673066/673066 co-relation queries the response was YES. Maximal size of possible extension queue 439. Compared 331313 event pairs, 1436 based on Foata normal form. 1087/33397 useless extension candidates. Maximal degree in co-relation 106206. Up to 4786 conditions per place. [2025-02-06 18:42:38,862 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 908 selfloop transitions, 464 changer transitions 0/1382 dead transitions. [2025-02-06 18:42:38,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 1382 transitions, 13012 flow [2025-02-06 18:42:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2025-02-06 18:42:38,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2025-02-06 18:42:38,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 2028 transitions. [2025-02-06 18:42:38,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6737541528239203 [2025-02-06 18:42:38,869 INFO L175 Difference]: Start difference. First operand has 171 places, 189 transitions, 1983 flow. Second operand 86 states and 2028 transitions. [2025-02-06 18:42:38,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 1382 transitions, 13012 flow [2025-02-06 18:42:39,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 1382 transitions, 11383 flow, removed 794 selfloop flow, removed 9 redundant places. [2025-02-06 18:42:39,583 INFO L231 Difference]: Finished difference. Result has 297 places, 580 transitions, 6240 flow [2025-02-06 18:42:39,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=1536, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=86, PETRI_FLOW=6240, PETRI_PLACES=297, PETRI_TRANSITIONS=580} [2025-02-06 18:42:39,586 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 263 predicate places. [2025-02-06 18:42:39,586 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 580 transitions, 6240 flow [2025-02-06 18:42:39,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.607142857142858) internal successors, (465), 28 states have internal predecessors, (465), 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) [2025-02-06 18:42:39,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:42:39,587 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:42:39,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:42:39,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 18:42:39,787 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread_function_mutexErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:42:39,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:42:39,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1650669047, now seen corresponding path program 1 times [2025-02-06 18:42:39,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:42:39,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552366630] [2025-02-06 18:42:39,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:39,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:42:39,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 18:42:39,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 18:42:39,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:39,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:40,283 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:40,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:42:40,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552366630] [2025-02-06 18:42:40,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552366630] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:42:40,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617816667] [2025-02-06 18:42:40,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:42:40,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:42:40,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:42:40,287 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:42:40,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:42:40,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 18:42:40,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 18:42:40,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:42:40,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:42:40,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 18:42:40,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:42:40,663 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:40,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:42:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:42:40,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617816667] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:42:40,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:42:40,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 32 [2025-02-06 18:42:40,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473987733] [2025-02-06 18:42:40,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:42:40,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-06 18:42:40,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:42:40,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-06 18:42:40,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=808, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 18:42:41,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:42:41,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 580 transitions, 6240 flow. Second operand has 34 states, 34 states have (on average 16.147058823529413) internal successors, (549), 34 states have internal predecessors, (549), 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) [2025-02-06 18:42:41,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:42:41,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:42:41,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:43:01,366 INFO L124 PetriNetUnfolderBase]: 24205/75820 cut-off events. [2025-02-06 18:43:01,366 INFO L125 PetriNetUnfolderBase]: For 4098190/4098190 co-relation queries the response was YES. [2025-02-06 18:43:02,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259822 conditions, 75820 events. 24205/75820 cut-off events. For 4098190/4098190 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 910457 event pairs, 2729 based on Foata normal form. 1523/77311 useless extension candidates. Maximal degree in co-relation 259700. Up to 11430 conditions per place. [2025-02-06 18:43:03,425 INFO L140 encePairwiseOnDemand]: 29/35 looper letters, 1411 selfloop transitions, 1180 changer transitions 0/2601 dead transitions. [2025-02-06 18:43:03,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 2601 transitions, 26975 flow [2025-02-06 18:43:03,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2025-02-06 18:43:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2025-02-06 18:43:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 3129 transitions. [2025-02-06 18:43:03,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6671641791044776 [2025-02-06 18:43:03,432 INFO L175 Difference]: Start difference. First operand has 297 places, 580 transitions, 6240 flow. Second operand 134 states and 3129 transitions. [2025-02-06 18:43:03,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 2601 transitions, 26975 flow [2025-02-06 18:43:08,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 2601 transitions, 25597 flow, removed 650 selfloop flow, removed 22 redundant places. [2025-02-06 18:43:08,933 INFO L231 Difference]: Finished difference. Result has 456 places, 1296 transitions, 15883 flow [2025-02-06 18:43:08,934 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=35, PETRI_DIFFERENCE_MINUEND_FLOW=5458, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=580, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=517, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=134, PETRI_FLOW=15883, PETRI_PLACES=456, PETRI_TRANSITIONS=1296} [2025-02-06 18:43:08,934 INFO L279 CegarLoopForPetriNet]: 34 programPoint places, 422 predicate places. [2025-02-06 18:43:08,934 INFO L471 AbstractCegarLoop]: Abstraction has has 456 places, 1296 transitions, 15883 flow [2025-02-06 18:43:08,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 16.147058823529413) internal successors, (549), 34 states have internal predecessors, (549), 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) [2025-02-06 18:43:08,934 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:43:08,935 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2025-02-06 18:43:08,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 18:43:09,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:09,135 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-06 18:43:09,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:43:09,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1965274225, now seen corresponding path program 2 times [2025-02-06 18:43:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:43:09,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925888721] [2025-02-06 18:43:09,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:43:09,154 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-02-06 18:43:09,174 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-02-06 18:43:09,174 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:43:09,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:09,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:43:09,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925888721] [2025-02-06 18:43:09,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925888721] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:43:09,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471265688] [2025-02-06 18:43:09,858 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:43:09,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:43:09,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:43:09,861 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:43:09,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 18:43:09,942 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 114 statements into 2 equivalence classes. [2025-02-06 18:43:09,990 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 114 of 114 statements. [2025-02-06 18:43:09,990 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:43:09,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:43:09,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 18:43:09,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:43:10,175 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:10,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:43:10,656 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:43:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471265688] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:43:10,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:43:10,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 42 [2025-02-06 18:43:10,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347129965] [2025-02-06 18:43:10,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:43:10,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-02-06 18:43:10,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:43:10,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-02-06 18:43:10,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=541, Invalid=1351, Unknown=0, NotChecked=0, Total=1892 [2025-02-06 18:43:10,752 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 35 [2025-02-06 18:43:10,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 1296 transitions, 15883 flow. Second operand has 44 states, 44 states have (on average 16.386363636363637) internal successors, (721), 44 states have internal predecessors, (721), 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) [2025-02-06 18:43:10,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:43:10,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 35 [2025-02-06 18:43:10,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand