./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:03:32,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:03:32,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:03:32,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:03:32,662 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:03:32,685 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:03:32,686 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:03:32,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:03:32,687 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:03:32,687 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:03:32,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:03:32,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:03:32,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:03:32,688 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:03:32,689 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:03:32,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:03:32,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:03:32,689 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:03:32,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:03:32,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:03:32,689 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:03:32,690 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:03:32,690 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:03:32,690 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:03:32,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:03:32,691 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 -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2025-02-08 14:03:32,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:03:32,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:03:32,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:03:32,904 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:03:32,904 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:03:32,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-02-08 14:03:34,085 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/15aa9b216/ec15e43fd51743dda524547c2c1b5727/FLAG346374bd1 [2025-02-08 14:03:34,432 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:03:34,433 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-02-08 14:03:34,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/15aa9b216/ec15e43fd51743dda524547c2c1b5727/FLAG346374bd1 [2025-02-08 14:03:34,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/15aa9b216/ec15e43fd51743dda524547c2c1b5727 [2025-02-08 14:03:34,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:03:34,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:03:34,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:03:34,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:03:34,685 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:03:34,686 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:03:34" (1/1) ... [2025-02-08 14:03:34,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d441a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:34, skipping insertion in model container [2025-02-08 14:03:34,688 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:03:34" (1/1) ... [2025-02-08 14:03:34,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:03:35,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:03:35,040 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:03:35,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:03:35,126 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:03:35,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35 WrapperNode [2025-02-08 14:03:35,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:03:35,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:03:35,128 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:03:35,128 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:03:35,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,158 INFO L138 Inliner]: procedures = 364, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2025-02-08 14:03:35,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:03:35,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:03:35,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:03:35,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:03:35,164 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,166 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,177 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 14:03:35,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,181 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,184 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:03:35,185 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:03:35,185 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:03:35,185 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:03:35,186 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (1/1) ... [2025-02-08 14:03:35,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:03:35,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:35,215 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:03:35,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2025-02-08 14:03:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2025-02-08 14:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:03:35,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:03:35,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:03:35,236 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:03:35,329 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:03:35,331 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:03:35,511 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:03:35,511 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:03:35,816 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:03:35,817 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:03:35,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:35 BoogieIcfgContainer [2025-02-08 14:03:35,817 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:03:35,819 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:03:35,819 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:03:35,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:03:35,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:03:34" (1/3) ... [2025-02-08 14:03:35,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293a07b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:03:35, skipping insertion in model container [2025-02-08 14:03:35,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:03:35" (2/3) ... [2025-02-08 14:03:35,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293a07b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:03:35, skipping insertion in model container [2025-02-08 14:03:35,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:03:35" (3/3) ... [2025-02-08 14:03:35,824 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2025-02-08 14:03:35,835 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:03:35,837 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 29 locations, 1 initial locations, 2 loop locations, and 8 error locations. [2025-02-08 14:03:35,837 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:03:35,865 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 14:03:35,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 67 flow [2025-02-08 14:03:35,905 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2025-02-08 14:03:35,907 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 14:03:35,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 29 events. 2/29 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 63 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2025-02-08 14:03:35,909 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 30 transitions, 67 flow [2025-02-08 14:03:35,911 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 27 transitions, 57 flow [2025-02-08 14:03:35,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:03:35,924 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;@b3dd22a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:03:35,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-02-08 14:03:35,929 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:03:35,929 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-02-08 14:03:35,929 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:35,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:35,930 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-08 14:03:35,930 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)] === [2025-02-08 14:03:35,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:35,934 INFO L85 PathProgramCache]: Analyzing trace with hash 318742366, now seen corresponding path program 1 times [2025-02-08 14:03:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:35,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471024971] [2025-02-08 14:03:35,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:35,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:36,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-08 14:03:36,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-08 14:03:36,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:36,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:36,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:36,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:36,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471024971] [2025-02-08 14:03:36,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471024971] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:36,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:36,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:03:36,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562029412] [2025-02-08 14:03:36,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:36,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:03:36,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:36,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:03:36,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:03:36,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2025-02-08 14:03:36,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 27 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:36,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2025-02-08 14:03:36,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:36,201 INFO L124 PetriNetUnfolderBase]: 40/136 cut-off events. [2025-02-08 14:03:36,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:03:36,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 136 events. 40/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 571 event pairs, 4 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 212. Up to 66 conditions per place. [2025-02-08 14:03:36,203 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 17 selfloop transitions, 3 changer transitions 0/34 dead transitions. [2025-02-08 14:03:36,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 34 transitions, 111 flow [2025-02-08 14:03:36,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:03:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:03:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-02-08 14:03:36,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7444444444444445 [2025-02-08 14:03:36,214 INFO L175 Difference]: Start difference. First operand has 29 places, 27 transitions, 57 flow. Second operand 3 states and 67 transitions. [2025-02-08 14:03:36,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 34 transitions, 111 flow [2025-02-08 14:03:36,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:36,219 INFO L231 Difference]: Finished difference. Result has 31 places, 29 transitions, 77 flow [2025-02-08 14:03:36,221 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=31, PETRI_TRANSITIONS=29} [2025-02-08 14:03:36,223 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2025-02-08 14:03:36,223 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 29 transitions, 77 flow [2025-02-08 14:03:36,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:36,223 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 14:03:36,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:03:36,224 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:36,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:36,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1291433316, now seen corresponding path program 1 times [2025-02-08 14:03:36,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:36,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122200480] [2025-02-08 14:03:36,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:36,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:36,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 14:03:36,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 14:03:36,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:36,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:36,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:36,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122200480] [2025-02-08 14:03:36,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122200480] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:36,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:36,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:03:36,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140943042] [2025-02-08 14:03:36,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:36,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:36,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:36,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:36,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:36,430 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:36,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:36,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:36,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:36,500 INFO L124 PetriNetUnfolderBase]: 54/162 cut-off events. [2025-02-08 14:03:36,501 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-02-08 14:03:36,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 162 events. 54/162 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 723 event pairs, 12 based on Foata normal form. 6/126 useless extension candidates. Maximal degree in co-relation 312. Up to 89 conditions per place. [2025-02-08 14:03:36,502 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 22 selfloop transitions, 7 changer transitions 0/41 dead transitions. [2025-02-08 14:03:36,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 168 flow [2025-02-08 14:03:36,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:03:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:03:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 98 transitions. [2025-02-08 14:03:36,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6533333333333333 [2025-02-08 14:03:36,503 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 77 flow. Second operand 5 states and 98 transitions. [2025-02-08 14:03:36,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 168 flow [2025-02-08 14:03:36,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:36,505 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 120 flow [2025-02-08 14:03:36,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-02-08 14:03:36,505 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2025-02-08 14:03:36,505 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 120 flow [2025-02-08 14:03:36,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:36,506 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:36,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:03:36,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:36,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:36,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1368746967, now seen corresponding path program 1 times [2025-02-08 14:03:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:36,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487310648] [2025-02-08 14:03:36,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:36,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:03:36,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:03:36,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:36,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:36,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487310648] [2025-02-08 14:03:36,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487310648] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:36,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:36,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:36,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262136653] [2025-02-08 14:03:36,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:36,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:36,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:36,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:36,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:36,584 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2025-02-08 14:03:36,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 120 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2025-02-08 14:03:36,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:36,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2025-02-08 14:03:36,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:36,662 INFO L124 PetriNetUnfolderBase]: 101/255 cut-off events. [2025-02-08 14:03:36,662 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2025-02-08 14:03:36,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 255 events. 101/255 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1213 event pairs, 22 based on Foata normal form. 17/235 useless extension candidates. Maximal degree in co-relation 592. Up to 132 conditions per place. [2025-02-08 14:03:36,665 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 42 selfloop transitions, 3 changer transitions 0/55 dead transitions. [2025-02-08 14:03:36,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 291 flow [2025-02-08 14:03:36,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:36,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2025-02-08 14:03:36,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-02-08 14:03:36,666 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 120 flow. Second operand 4 states and 81 transitions. [2025-02-08 14:03:36,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 291 flow [2025-02-08 14:03:36,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 286 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:36,668 INFO L231 Difference]: Finished difference. Result has 41 places, 35 transitions, 140 flow [2025-02-08 14:03:36,668 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=41, PETRI_TRANSITIONS=35} [2025-02-08 14:03:36,668 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 12 predicate places. [2025-02-08 14:03:36,668 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 35 transitions, 140 flow [2025-02-08 14:03:36,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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) [2025-02-08 14:03:36,669 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:36,669 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:36,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:03:36,669 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_dataraceErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:36,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1597699743, now seen corresponding path program 1 times [2025-02-08 14:03:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:36,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113282034] [2025-02-08 14:03:36,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:36,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:36,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 14:03:36,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 14:03:36,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:36,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:36,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:36,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113282034] [2025-02-08 14:03:36,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113282034] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:36,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:36,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:36,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774392489] [2025-02-08 14:03:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:36,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:03:36,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:36,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:03:36,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:03:36,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:36,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:36,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:36,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:36,897 INFO L124 PetriNetUnfolderBase]: 120/380 cut-off events. [2025-02-08 14:03:36,897 INFO L125 PetriNetUnfolderBase]: For 225/246 co-relation queries the response was YES. [2025-02-08 14:03:36,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 380 events. 120/380 cut-off events. For 225/246 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 2097 event pairs, 19 based on Foata normal form. 16/340 useless extension candidates. Maximal degree in co-relation 946. Up to 104 conditions per place. [2025-02-08 14:03:36,900 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 42 selfloop transitions, 10 changer transitions 0/65 dead transitions. [2025-02-08 14:03:36,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 65 transitions, 363 flow [2025-02-08 14:03:36,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:03:36,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:03:36,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 127 transitions. [2025-02-08 14:03:36,901 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7055555555555556 [2025-02-08 14:03:36,902 INFO L175 Difference]: Start difference. First operand has 41 places, 35 transitions, 140 flow. Second operand 6 states and 127 transitions. [2025-02-08 14:03:36,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 65 transitions, 363 flow [2025-02-08 14:03:36,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 356 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:36,904 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 218 flow [2025-02-08 14:03:36,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2025-02-08 14:03:36,905 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 20 predicate places. [2025-02-08 14:03:36,905 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 218 flow [2025-02-08 14:03:36,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:36,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:36,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:03:36,906 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:36,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash 336575912, now seen corresponding path program 1 times [2025-02-08 14:03:36,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:36,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072083267] [2025-02-08 14:03:36,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:36,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:36,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:03:36,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:03:36,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:36,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:36,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:36,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:36,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072083267] [2025-02-08 14:03:36,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072083267] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:36,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:36,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898972588] [2025-02-08 14:03:36,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:36,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:03:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:36,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:03:36,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:03:36,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:36,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 218 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:36,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:36,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:36,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:37,067 INFO L124 PetriNetUnfolderBase]: 134/462 cut-off events. [2025-02-08 14:03:37,067 INFO L125 PetriNetUnfolderBase]: For 756/771 co-relation queries the response was YES. [2025-02-08 14:03:37,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 462 events. 134/462 cut-off events. For 756/771 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2697 event pairs, 20 based on Foata normal form. 27/469 useless extension candidates. Maximal degree in co-relation 1308. Up to 203 conditions per place. [2025-02-08 14:03:37,071 INFO L140 encePairwiseOnDemand]: 21/30 looper letters, 37 selfloop transitions, 20 changer transitions 0/70 dead transitions. [2025-02-08 14:03:37,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 70 transitions, 477 flow [2025-02-08 14:03:37,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:03:37,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:03:37,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 139 transitions. [2025-02-08 14:03:37,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6619047619047619 [2025-02-08 14:03:37,072 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 218 flow. Second operand 7 states and 139 transitions. [2025-02-08 14:03:37,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 70 transitions, 477 flow [2025-02-08 14:03:37,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 465 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-02-08 14:03:37,076 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 370 flow [2025-02-08 14:03:37,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2025-02-08 14:03:37,077 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2025-02-08 14:03:37,077 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 370 flow [2025-02-08 14:03:37,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:37,077 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:37,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:03:37,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:37,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:37,078 INFO L85 PathProgramCache]: Analyzing trace with hash 623110566, now seen corresponding path program 1 times [2025-02-08 14:03:37,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:37,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626854958] [2025-02-08 14:03:37,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:37,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:37,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:03:37,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:03:37,110 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:37,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:37,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:37,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:37,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626854958] [2025-02-08 14:03:37,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626854958] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:37,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:37,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:37,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121674609] [2025-02-08 14:03:37,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:37,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:37,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:37,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:37,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:37,153 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2025-02-08 14:03:37,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:37,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2025-02-08 14:03:37,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:37,238 INFO L124 PetriNetUnfolderBase]: 186/568 cut-off events. [2025-02-08 14:03:37,238 INFO L125 PetriNetUnfolderBase]: For 1597/1673 co-relation queries the response was YES. [2025-02-08 14:03:37,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1928 conditions, 568 events. 186/568 cut-off events. For 1597/1673 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3522 event pairs, 52 based on Foata normal form. 47/593 useless extension candidates. Maximal degree in co-relation 1902. Up to 282 conditions per place. [2025-02-08 14:03:37,242 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 58 selfloop transitions, 3 changer transitions 0/77 dead transitions. [2025-02-08 14:03:37,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 77 transitions, 667 flow [2025-02-08 14:03:37,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:37,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2025-02-08 14:03:37,243 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2025-02-08 14:03:37,243 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 370 flow. Second operand 4 states and 82 transitions. [2025-02-08 14:03:37,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 77 transitions, 667 flow [2025-02-08 14:03:37,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 642 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:37,248 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 374 flow [2025-02-08 14:03:37,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2025-02-08 14:03:37,249 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 31 predicate places. [2025-02-08 14:03:37,249 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 374 flow [2025-02-08 14:03:37,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:37,249 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:37,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:03:37,249 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:37,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1289439265, now seen corresponding path program 1 times [2025-02-08 14:03:37,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:37,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046903859] [2025-02-08 14:03:37,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:37,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:37,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:03:37,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:03:37,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:37,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:37,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:37,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046903859] [2025-02-08 14:03:37,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046903859] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:37,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:37,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:03:37,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96335525] [2025-02-08 14:03:37,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:37,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:03:37,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:37,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:03:37,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:03:37,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:37,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:37,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:37,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:37,452 INFO L124 PetriNetUnfolderBase]: 124/443 cut-off events. [2025-02-08 14:03:37,452 INFO L125 PetriNetUnfolderBase]: For 1201/1218 co-relation queries the response was YES. [2025-02-08 14:03:37,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 443 events. 124/443 cut-off events. For 1201/1218 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2693 event pairs, 29 based on Foata normal form. 38/469 useless extension candidates. Maximal degree in co-relation 1473. Up to 228 conditions per place. [2025-02-08 14:03:37,456 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 40 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2025-02-08 14:03:37,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 65 transitions, 516 flow [2025-02-08 14:03:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 14:03:37,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 14:03:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2025-02-08 14:03:37,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5708333333333333 [2025-02-08 14:03:37,457 INFO L175 Difference]: Start difference. First operand has 60 places, 55 transitions, 374 flow. Second operand 8 states and 137 transitions. [2025-02-08 14:03:37,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 65 transitions, 516 flow [2025-02-08 14:03:37,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 491 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-08 14:03:37,462 INFO L231 Difference]: Finished difference. Result has 62 places, 51 transitions, 334 flow [2025-02-08 14:03:37,462 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=334, PETRI_PLACES=62, PETRI_TRANSITIONS=51} [2025-02-08 14:03:37,462 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2025-02-08 14:03:37,462 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 51 transitions, 334 flow [2025-02-08 14:03:37,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,463 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:37,463 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:37,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:03:37,463 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)] === [2025-02-08 14:03:37,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:37,463 INFO L85 PathProgramCache]: Analyzing trace with hash 891232152, now seen corresponding path program 1 times [2025-02-08 14:03:37,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:37,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179309956] [2025-02-08 14:03:37,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:37,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:37,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:03:37,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:03:37,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:37,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:37,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:37,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:37,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179309956] [2025-02-08 14:03:37,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179309956] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:37,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:37,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:03:37,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717188585] [2025-02-08 14:03:37,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:37,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:03:37,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:37,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:03:37,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:03:37,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:37,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:37,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:37,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:37,677 INFO L124 PetriNetUnfolderBase]: 158/540 cut-off events. [2025-02-08 14:03:37,677 INFO L125 PetriNetUnfolderBase]: For 1265/1308 co-relation queries the response was YES. [2025-02-08 14:03:37,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1809 conditions, 540 events. 158/540 cut-off events. For 1265/1308 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3265 event pairs, 20 based on Foata normal form. 39/571 useless extension candidates. Maximal degree in co-relation 1782. Up to 213 conditions per place. [2025-02-08 14:03:37,681 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 47 selfloop transitions, 25 changer transitions 0/86 dead transitions. [2025-02-08 14:03:37,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 86 transitions, 687 flow [2025-02-08 14:03:37,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 14:03:37,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 14:03:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 186 transitions. [2025-02-08 14:03:37,683 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.62 [2025-02-08 14:03:37,683 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 334 flow. Second operand 10 states and 186 transitions. [2025-02-08 14:03:37,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 86 transitions, 687 flow [2025-02-08 14:03:37,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 86 transitions, 674 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:03:37,686 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 499 flow [2025-02-08 14:03:37,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=499, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2025-02-08 14:03:37,687 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 41 predicate places. [2025-02-08 14:03:37,687 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 499 flow [2025-02-08 14:03:37,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:37,688 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:37,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:03:37,688 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:37,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash 2012067538, now seen corresponding path program 1 times [2025-02-08 14:03:37,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:37,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140227946] [2025-02-08 14:03:37,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:37,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:37,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:03:37,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:03:37,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:37,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:37,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:37,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140227946] [2025-02-08 14:03:37,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140227946] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:37,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513687391] [2025-02-08 14:03:37,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:37,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:37,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:37,757 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:03:37,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 14:03:37,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 14:03:37,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 14:03:37,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:37,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:37,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 14:03:37,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:37,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:37,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:03:37,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513687391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:37,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:03:37,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-02-08 14:03:37,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344058748] [2025-02-08 14:03:37,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:37,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:03:37,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:37,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:03:37,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-08 14:03:37,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2025-02-08 14:03:37,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 499 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:37,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:37,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2025-02-08 14:03:37,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:38,033 INFO L124 PetriNetUnfolderBase]: 318/807 cut-off events. [2025-02-08 14:03:38,033 INFO L125 PetriNetUnfolderBase]: For 3275/3310 co-relation queries the response was YES. [2025-02-08 14:03:38,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3269 conditions, 807 events. 318/807 cut-off events. For 3275/3310 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4930 event pairs, 52 based on Foata normal form. 41/811 useless extension candidates. Maximal degree in co-relation 3239. Up to 362 conditions per place. [2025-02-08 14:03:38,040 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 76 selfloop transitions, 5 changer transitions 0/92 dead transitions. [2025-02-08 14:03:38,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 92 transitions, 945 flow [2025-02-08 14:03:38,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2025-02-08 14:03:38,041 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575 [2025-02-08 14:03:38,041 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 499 flow. Second operand 4 states and 69 transitions. [2025-02-08 14:03:38,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 92 transitions, 945 flow [2025-02-08 14:03:38,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 92 transitions, 869 flow, removed 24 selfloop flow, removed 5 redundant places. [2025-02-08 14:03:38,047 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 463 flow [2025-02-08 14:03:38,047 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=463, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2025-02-08 14:03:38,048 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2025-02-08 14:03:38,048 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 463 flow [2025-02-08 14:03:38,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:38,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:38,048 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:03:38,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 14:03:38,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:38,250 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:38,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:38,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2050415501, now seen corresponding path program 1 times [2025-02-08 14:03:38,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:38,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432029431] [2025-02-08 14:03:38,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:38,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:38,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:03:38,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:03:38,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:38,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:03:38,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:38,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432029431] [2025-02-08 14:03:38,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432029431] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:38,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:38,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:38,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348461747] [2025-02-08 14:03:38,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:38,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:38,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:38,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:38,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:38,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30 [2025-02-08 14:03:38,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 463 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:38,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:38,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30 [2025-02-08 14:03:38,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:38,468 INFO L124 PetriNetUnfolderBase]: 286/761 cut-off events. [2025-02-08 14:03:38,469 INFO L125 PetriNetUnfolderBase]: For 2623/2653 co-relation queries the response was YES. [2025-02-08 14:03:38,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3020 conditions, 761 events. 286/761 cut-off events. For 2623/2653 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4583 event pairs, 36 based on Foata normal form. 44/801 useless extension candidates. Maximal degree in co-relation 2991. Up to 305 conditions per place. [2025-02-08 14:03:38,473 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 86 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2025-02-08 14:03:38,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 1011 flow [2025-02-08 14:03:38,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:38,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:38,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2025-02-08 14:03:38,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575 [2025-02-08 14:03:38,474 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 463 flow. Second operand 4 states and 69 transitions. [2025-02-08 14:03:38,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 1011 flow [2025-02-08 14:03:38,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 103 transitions, 1001 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:03:38,484 INFO L231 Difference]: Finished difference. Result has 67 places, 60 transitions, 469 flow [2025-02-08 14:03:38,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=67, PETRI_TRANSITIONS=60} [2025-02-08 14:03:38,485 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places. [2025-02-08 14:03:38,485 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 60 transitions, 469 flow [2025-02-08 14:03:38,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:38,485 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:38,485 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:38,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:03:38,488 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:38,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1474183325, now seen corresponding path program 1 times [2025-02-08 14:03:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339341055] [2025-02-08 14:03:38,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:38,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:03:38,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:03:38,509 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:38,509 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:38,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:38,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339341055] [2025-02-08 14:03:38,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339341055] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:38,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588852216] [2025-02-08 14:03:38,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:38,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:38,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:38,577 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:03:38,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 14:03:38,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:03:38,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:03:38,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:38,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:38,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:03:38,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:38,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:38,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:03:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:38,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588852216] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:03:38,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:03:38,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-02-08 14:03:38,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87653460] [2025-02-08 14:03:38,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:03:38,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 14:03:38,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:38,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 14:03:38,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2025-02-08 14:03:38,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:38,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 469 flow. Second operand has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:38,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:38,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:38,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:39,025 INFO L124 PetriNetUnfolderBase]: 261/880 cut-off events. [2025-02-08 14:03:39,025 INFO L125 PetriNetUnfolderBase]: For 4416/4444 co-relation queries the response was YES. [2025-02-08 14:03:39,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3564 conditions, 880 events. 261/880 cut-off events. For 4416/4444 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5498 event pairs, 11 based on Foata normal form. 94/970 useless extension candidates. Maximal degree in co-relation 3535. Up to 226 conditions per place. [2025-02-08 14:03:39,031 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 64 selfloop transitions, 71 changer transitions 0/148 dead transitions. [2025-02-08 14:03:39,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 148 transitions, 1497 flow [2025-02-08 14:03:39,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 14:03:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-08 14:03:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 403 transitions. [2025-02-08 14:03:39,033 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6106060606060606 [2025-02-08 14:03:39,033 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 469 flow. Second operand 22 states and 403 transitions. [2025-02-08 14:03:39,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 148 transitions, 1497 flow [2025-02-08 14:03:39,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 148 transitions, 1464 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:39,040 INFO L231 Difference]: Finished difference. Result has 100 places, 109 transitions, 1265 flow [2025-02-08 14:03:39,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1265, PETRI_PLACES=100, PETRI_TRANSITIONS=109} [2025-02-08 14:03:39,041 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 71 predicate places. [2025-02-08 14:03:39,041 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 109 transitions, 1265 flow [2025-02-08 14:03:39,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:39,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:39,041 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:39,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 14:03:39,245 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 [2025-02-08 14:03:39,245 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:39,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:39,246 INFO L85 PathProgramCache]: Analyzing trace with hash 373245339, now seen corresponding path program 1 times [2025-02-08 14:03:39,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:39,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786093428] [2025-02-08 14:03:39,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:39,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:39,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:03:39,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:03:39,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:39,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:39,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:39,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786093428] [2025-02-08 14:03:39,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786093428] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:39,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998817007] [2025-02-08 14:03:39,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:39,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:39,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:39,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 14:03:39,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 14:03:39,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:03:39,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:03:39,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:39,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:39,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 14:03:39,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:39,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:39,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:03:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:39,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998817007] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:03:39,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:03:39,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2025-02-08 14:03:39,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513858578] [2025-02-08 14:03:39,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:03:39,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-08 14:03:39,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:39,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-08 14:03:39,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2025-02-08 14:03:39,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:39,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 109 transitions, 1265 flow. Second operand has 14 states, 14 states have (on average 14.857142857142858) internal successors, (208), 14 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:39,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:39,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:39,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:40,115 INFO L124 PetriNetUnfolderBase]: 565/1987 cut-off events. [2025-02-08 14:03:40,115 INFO L125 PetriNetUnfolderBase]: For 21221/21319 co-relation queries the response was YES. [2025-02-08 14:03:40,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 1987 events. 565/1987 cut-off events. For 21221/21319 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 15749 event pairs, 21 based on Foata normal form. 195/2176 useless extension candidates. Maximal degree in co-relation 8791. Up to 483 conditions per place. [2025-02-08 14:03:40,134 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 140 selfloop transitions, 165 changer transitions 0/318 dead transitions. [2025-02-08 14:03:40,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 318 transitions, 4019 flow [2025-02-08 14:03:40,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-02-08 14:03:40,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2025-02-08 14:03:40,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 630 transitions. [2025-02-08 14:03:40,137 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2025-02-08 14:03:40,137 INFO L175 Difference]: Start difference. First operand has 100 places, 109 transitions, 1265 flow. Second operand 33 states and 630 transitions. [2025-02-08 14:03:40,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 318 transitions, 4019 flow [2025-02-08 14:03:40,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 318 transitions, 3454 flow, removed 270 selfloop flow, removed 5 redundant places. [2025-02-08 14:03:40,173 INFO L231 Difference]: Finished difference. Result has 143 places, 219 transitions, 2847 flow [2025-02-08 14:03:40,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2847, PETRI_PLACES=143, PETRI_TRANSITIONS=219} [2025-02-08 14:03:40,175 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 114 predicate places. [2025-02-08 14:03:40,175 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 219 transitions, 2847 flow [2025-02-08 14:03:40,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 14.857142857142858) internal successors, (208), 14 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:40,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:40,176 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:40,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 14:03:40,376 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 [2025-02-08 14:03:40,376 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread_function_dataraceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:40,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:40,377 INFO L85 PathProgramCache]: Analyzing trace with hash -646263587, now seen corresponding path program 1 times [2025-02-08 14:03:40,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:40,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893762105] [2025-02-08 14:03:40,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:40,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:40,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:03:40,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:03:40,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:40,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:40,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:40,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893762105] [2025-02-08 14:03:40,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893762105] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:40,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252168079] [2025-02-08 14:03:40,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:40,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:40,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:40,512 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) [2025-02-08 14:03:40,514 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 [2025-02-08 14:03:40,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:03:40,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:03:40,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:40,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:40,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 14:03:40,655 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:40,704 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:40,704 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 14:03:40,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252168079] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:40,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 14:03:40,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-08 14:03:40,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682303606] [2025-02-08 14:03:40,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:40,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:03:40,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:40,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:03:40,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:03:40,718 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30 [2025-02-08 14:03:40,721 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 219 transitions, 2847 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:40,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:40,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30 [2025-02-08 14:03:40,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:41,269 INFO L124 PetriNetUnfolderBase]: 686/2133 cut-off events. [2025-02-08 14:03:41,270 INFO L125 PetriNetUnfolderBase]: For 32176/32230 co-relation queries the response was YES. [2025-02-08 14:03:41,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11172 conditions, 2133 events. 686/2133 cut-off events. For 32176/32230 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 16707 event pairs, 75 based on Foata normal form. 103/2168 useless extension candidates. Maximal degree in co-relation 11110. Up to 800 conditions per place. [2025-02-08 14:03:41,314 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 274 selfloop transitions, 5 changer transitions 0/291 dead transitions. [2025-02-08 14:03:41,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 291 transitions, 4635 flow [2025-02-08 14:03:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 14:03:41,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 14:03:41,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2025-02-08 14:03:41,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-02-08 14:03:41,320 INFO L175 Difference]: Start difference. First operand has 143 places, 219 transitions, 2847 flow. Second operand 6 states and 108 transitions. [2025-02-08 14:03:41,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 291 transitions, 4635 flow [2025-02-08 14:03:41,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 291 transitions, 3774 flow, removed 372 selfloop flow, removed 12 redundant places. [2025-02-08 14:03:41,460 INFO L231 Difference]: Finished difference. Result has 135 places, 218 transitions, 2257 flow [2025-02-08 14:03:41,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2247, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2257, PETRI_PLACES=135, PETRI_TRANSITIONS=218} [2025-02-08 14:03:41,465 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 106 predicate places. [2025-02-08 14:03:41,465 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 218 transitions, 2257 flow [2025-02-08 14:03:41,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:41,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:41,465 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:03:41,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 14:03:41,665 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 [2025-02-08 14:03:41,666 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread_function_dataraceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:41,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:41,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1440665584, now seen corresponding path program 1 times [2025-02-08 14:03:41,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:41,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890824664] [2025-02-08 14:03:41,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:41,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:41,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:03:41,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:03:41,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:41,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 14:03:41,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:41,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890824664] [2025-02-08 14:03:41,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890824664] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:03:41,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:03:41,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:03:41,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000042233] [2025-02-08 14:03:41,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:03:41,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:03:41,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:41,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:03:41,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:03:41,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2025-02-08 14:03:41,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 218 transitions, 2257 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-02-08 14:03:41,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:41,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2025-02-08 14:03:41,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:42,244 INFO L124 PetriNetUnfolderBase]: 735/2201 cut-off events. [2025-02-08 14:03:42,247 INFO L125 PetriNetUnfolderBase]: For 28385/28446 co-relation queries the response was YES. [2025-02-08 14:03:42,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10479 conditions, 2201 events. 735/2201 cut-off events. For 28385/28446 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 17048 event pairs, 87 based on Foata normal form. 110/2281 useless extension candidates. Maximal degree in co-relation 10419. Up to 983 conditions per place. [2025-02-08 14:03:42,290 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 259 selfloop transitions, 6 changer transitions 0/276 dead transitions. [2025-02-08 14:03:42,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 276 transitions, 3497 flow [2025-02-08 14:03:42,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:03:42,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:03:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2025-02-08 14:03:42,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2025-02-08 14:03:42,291 INFO L175 Difference]: Start difference. First operand has 135 places, 218 transitions, 2257 flow. Second operand 4 states and 68 transitions. [2025-02-08 14:03:42,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 276 transitions, 3497 flow [2025-02-08 14:03:42,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 276 transitions, 3488 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:03:42,400 INFO L231 Difference]: Finished difference. Result has 134 places, 218 transitions, 2264 flow [2025-02-08 14:03:42,401 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2264, PETRI_PLACES=134, PETRI_TRANSITIONS=218} [2025-02-08 14:03:42,405 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 105 predicate places. [2025-02-08 14:03:42,405 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 218 transitions, 2264 flow [2025-02-08 14:03:42,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-02-08 14:03:42,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:42,405 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:42,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 14:03:42,405 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:42,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:42,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1370074129, now seen corresponding path program 1 times [2025-02-08 14:03:42,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:42,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526644835] [2025-02-08 14:03:42,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:42,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:42,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 14:03:42,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 14:03:42,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:42,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:42,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:42,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526644835] [2025-02-08 14:03:42,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526644835] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:42,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008689482] [2025-02-08 14:03:42,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:42,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:42,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:42,630 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) [2025-02-08 14:03:42,632 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 [2025-02-08 14:03:42,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 14:03:42,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 14:03:42,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:42,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:42,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 14:03:42,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:42,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:03:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008689482] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:03:42,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:03:42,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-08 14:03:42,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240046445] [2025-02-08 14:03:42,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:03:42,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 14:03:42,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:42,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 14:03:42,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2025-02-08 14:03:42,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:42,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 218 transitions, 2264 flow. Second operand has 19 states, 19 states have (on average 14.789473684210526) internal successors, (281), 19 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:42,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:42,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:42,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:44,327 INFO L124 PetriNetUnfolderBase]: 1312/4645 cut-off events. [2025-02-08 14:03:44,327 INFO L125 PetriNetUnfolderBase]: For 126881/126957 co-relation queries the response was YES. [2025-02-08 14:03:44,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21108 conditions, 4645 events. 1312/4645 cut-off events. For 126881/126957 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 41532 event pairs, 14 based on Foata normal form. 473/5110 useless extension candidates. Maximal degree in co-relation 21049. Up to 973 conditions per place. [2025-02-08 14:03:44,378 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 237 selfloop transitions, 415 changer transitions 0/664 dead transitions. [2025-02-08 14:03:44,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 664 transitions, 8388 flow [2025-02-08 14:03:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-02-08 14:03:44,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-02-08 14:03:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 1173 transitions. [2025-02-08 14:03:44,384 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6409836065573771 [2025-02-08 14:03:44,384 INFO L175 Difference]: Start difference. First operand has 134 places, 218 transitions, 2264 flow. Second operand 61 states and 1173 transitions. [2025-02-08 14:03:44,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 664 transitions, 8388 flow [2025-02-08 14:03:44,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 664 transitions, 8273 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-02-08 14:03:44,512 INFO L231 Difference]: Finished difference. Result has 228 places, 478 transitions, 7142 flow [2025-02-08 14:03:44,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=2244, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=7142, PETRI_PLACES=228, PETRI_TRANSITIONS=478} [2025-02-08 14:03:44,513 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 199 predicate places. [2025-02-08 14:03:44,513 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 478 transitions, 7142 flow [2025-02-08 14:03:44,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.789473684210526) internal successors, (281), 19 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:44,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:44,514 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:03:44,522 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 14:03:44,714 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,SelfDestructingSolverStorable14 [2025-02-08 14:03:44,715 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:44,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:44,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1047584777, now seen corresponding path program 1 times [2025-02-08 14:03:44,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:44,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812636358] [2025-02-08 14:03:44,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:44,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:44,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 14:03:44,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 14:03:44,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:44,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812636358] [2025-02-08 14:03:44,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812636358] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975824309] [2025-02-08 14:03:44,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:03:44,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:44,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:44,929 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) [2025-02-08 14:03:44,931 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 [2025-02-08 14:03:45,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-08 14:03:45,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-08 14:03:45,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:03:45,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:45,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 14:03:45,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:45,144 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:45,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:03:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:45,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975824309] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:03:45,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:03:45,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 28 [2025-02-08 14:03:45,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263202746] [2025-02-08 14:03:45,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:03:45,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-02-08 14:03:45,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:45,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-02-08 14:03:45,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=630, Unknown=0, NotChecked=0, Total=870 [2025-02-08 14:03:45,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:45,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 478 transitions, 7142 flow. Second operand has 30 states, 30 states have (on average 14.666666666666666) internal successors, (440), 30 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:45,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:45,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:45,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:03:51,048 INFO L124 PetriNetUnfolderBase]: 4348/16213 cut-off events. [2025-02-08 14:03:51,049 INFO L125 PetriNetUnfolderBase]: For 1578401/1578540 co-relation queries the response was YES. [2025-02-08 14:03:51,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83580 conditions, 16213 events. 4348/16213 cut-off events. For 1578401/1578540 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 179028 event pairs, 18 based on Foata normal form. 1364/17570 useless extension candidates. Maximal degree in co-relation 83483. Up to 3825 conditions per place. [2025-02-08 14:03:51,329 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 609 selfloop transitions, 1334 changer transitions 0/1955 dead transitions. [2025-02-08 14:03:51,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1955 transitions, 31652 flow [2025-02-08 14:03:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2025-02-08 14:03:51,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2025-02-08 14:03:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 2733 transitions. [2025-02-08 14:03:51,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6649635036496351 [2025-02-08 14:03:51,341 INFO L175 Difference]: Start difference. First operand has 228 places, 478 transitions, 7142 flow. Second operand 137 states and 2733 transitions. [2025-02-08 14:03:51,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1955 transitions, 31652 flow [2025-02-08 14:03:54,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 1955 transitions, 25963 flow, removed 2815 selfloop flow, removed 9 redundant places. [2025-02-08 14:03:54,064 INFO L231 Difference]: Finished difference. Result has 440 places, 1445 transitions, 22123 flow [2025-02-08 14:03:54,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=5703, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=432, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=137, PETRI_FLOW=22123, PETRI_PLACES=440, PETRI_TRANSITIONS=1445} [2025-02-08 14:03:54,065 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 411 predicate places. [2025-02-08 14:03:54,065 INFO L471 AbstractCegarLoop]: Abstraction has has 440 places, 1445 transitions, 22123 flow [2025-02-08 14:03:54,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 14.666666666666666) internal successors, (440), 30 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:54,066 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:03:54,066 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:03:54,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 14:03:54,270 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,SelfDestructingSolverStorable15 [2025-02-08 14:03:54,270 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread_function_dataraceErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:03:54,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:03:54,271 INFO L85 PathProgramCache]: Analyzing trace with hash 912969925, now seen corresponding path program 2 times [2025-02-08 14:03:54,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:03:54,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609505331] [2025-02-08 14:03:54,271 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:03:54,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:03:54,287 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 68 statements into 2 equivalence classes. [2025-02-08 14:03:54,300 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 14:03:54,301 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:03:54,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:54,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:03:54,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609505331] [2025-02-08 14:03:54,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609505331] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:03:54,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088432465] [2025-02-08 14:03:54,579 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:03:54,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:03:54,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:03:54,583 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) [2025-02-08 14:03:54,584 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 [2025-02-08 14:03:54,668 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 68 statements into 2 equivalence classes. [2025-02-08 14:03:54,690 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 68 of 68 statements. [2025-02-08 14:03:54,690 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:03:54,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:03:54,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-08 14:03:54,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:03:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:54,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:03:55,041 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:03:55,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088432465] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:03:55,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:03:55,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2025-02-08 14:03:55,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552222602] [2025-02-08 14:03:55,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:03:55,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-02-08 14:03:55,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:03:55,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-02-08 14:03:55,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=433, Invalid=757, Unknown=0, NotChecked=0, Total=1190 [2025-02-08 14:03:55,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:03:55,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 1445 transitions, 22123 flow. Second operand has 35 states, 35 states have (on average 14.914285714285715) internal successors, (522), 35 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:03:55,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:03:55,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:03:55,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:04:16,347 INFO L124 PetriNetUnfolderBase]: 13492/48897 cut-off events. [2025-02-08 14:04:16,347 INFO L125 PetriNetUnfolderBase]: For 16580807/16580948 co-relation queries the response was YES. [2025-02-08 14:04:19,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277640 conditions, 48897 events. 13492/48897 cut-off events. For 16580807/16580948 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 615747 event pairs, 325 based on Foata normal form. 2302/51158 useless extension candidates. Maximal degree in co-relation 277457. Up to 10385 conditions per place. [2025-02-08 14:04:19,331 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 783 selfloop transitions, 5760 changer transitions 0/6555 dead transitions. [2025-02-08 14:04:19,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 6555 transitions, 112476 flow [2025-02-08 14:04:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2025-02-08 14:04:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2025-02-08 14:04:19,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 2737 transitions. [2025-02-08 14:04:19,337 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6291954022988506 [2025-02-08 14:04:19,337 INFO L175 Difference]: Start difference. First operand has 440 places, 1445 transitions, 22123 flow. Second operand 145 states and 2737 transitions. [2025-02-08 14:04:19,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 6555 transitions, 112476 flow [2025-02-08 14:04:46,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 6555 transitions, 88052 flow, removed 12087 selfloop flow, removed 23 redundant places. [2025-02-08 14:04:46,971 INFO L231 Difference]: Finished difference. Result has 651 places, 6167 transitions, 92411 flow [2025-02-08 14:04:46,973 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=17837, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1445, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1342, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=145, PETRI_FLOW=92411, PETRI_PLACES=651, PETRI_TRANSITIONS=6167} [2025-02-08 14:04:46,973 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 622 predicate places. [2025-02-08 14:04:46,974 INFO L471 AbstractCegarLoop]: Abstraction has has 651 places, 6167 transitions, 92411 flow [2025-02-08 14:04:46,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 14.914285714285715) internal successors, (522), 35 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:04:46,974 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:04:46,974 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-02-08 14:04:46,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 14:04:47,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:47,175 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-02-08 14:04:47,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:04:47,177 INFO L85 PathProgramCache]: Analyzing trace with hash 91421641, now seen corresponding path program 2 times [2025-02-08 14:04:47,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:04:47,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48799219] [2025-02-08 14:04:47,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:47,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:04:47,211 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-02-08 14:04:47,227 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-02-08 14:04:47,227 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:04:47,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:47,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:04:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48799219] [2025-02-08 14:04:47,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48799219] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 14:04:47,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011499315] [2025-02-08 14:04:47,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 14:04:47,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 14:04:47,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:04:47,645 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) [2025-02-08 14:04:47,652 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 [2025-02-08 14:04:47,769 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 72 statements into 2 equivalence classes. [2025-02-08 14:04:47,799 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 72 of 72 statements. [2025-02-08 14:04:47,799 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 14:04:47,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:04:47,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-08 14:04:47,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 14:04:47,879 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:47,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 14:04:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:04:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011499315] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 14:04:48,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 14:04:48,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2025-02-08 14:04:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085631069] [2025-02-08 14:04:48,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 14:04:48,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-02-08 14:04:48,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:04:48,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-02-08 14:04:48,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2025-02-08 14:04:48,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 30 [2025-02-08 14:04:48,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 651 places, 6167 transitions, 92411 flow. Second operand has 41 states, 41 states have (on average 14.78048780487805) internal successors, (606), 41 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:04:48,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:04:48,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 30 [2025-02-08 14:04:48,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand