./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/test-easy11.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/test-easy11.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:44:14,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:44:14,685 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:44:14,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:44:14,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:44:14,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:44:14,710 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:44:14,711 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:44:14,711 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:44:14,711 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:44:14,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:44:14,712 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:44:14,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:44:14,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:44:14,712 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:44:14,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:44:14,713 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:44:14,714 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:44:14,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:44:14,715 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:44:14,715 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:44:14,715 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> dd59a2dab1e1a10d8308eb629ebc6f779430a45291e09beb1ad6d6fe62d16e94 [2025-02-08 08:44:14,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:44:14,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:44:14,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:44:14,952 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:44:14,952 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:44:14,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-easy11.wvr.c [2025-02-08 08:44:16,030 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f94bb577/8d48ee0648074c82b6661dfb524d5129/FLAG7a023b044 [2025-02-08 08:44:16,285 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:44:16,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/test-easy11.wvr.c [2025-02-08 08:44:16,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f94bb577/8d48ee0648074c82b6661dfb524d5129/FLAG7a023b044 [2025-02-08 08:44:16,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f94bb577/8d48ee0648074c82b6661dfb524d5129 [2025-02-08 08:44:16,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:44:16,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:44:16,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:44:16,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:44:16,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:44:16,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eaa278c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16, skipping insertion in model container [2025-02-08 08:44:16,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,618 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:44:16,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:44:16,732 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:44:16,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:44:16,752 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:44:16,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16 WrapperNode [2025-02-08 08:44:16,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:44:16,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:44:16,754 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:44:16,754 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:44:16,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,772 INFO L138 Inliner]: procedures = 18, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 43 [2025-02-08 08:44:16,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:44:16,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:44:16,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:44:16,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:44:16,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,787 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 08:44:16,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,791 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:44:16,797 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:44:16,797 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:44:16,797 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:44:16,797 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (1/1) ... [2025-02-08 08:44:16,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:44:16,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:16,824 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 08:44:16,832 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 08:44:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:44:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:44:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:44:16,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:44:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:44:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:44:16,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:44:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:44:16,849 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 08:44:16,906 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:44:16,907 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:44:17,022 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:44:17,023 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:44:17,088 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:44:17,088 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:44:17,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:44:17 BoogieIcfgContainer [2025-02-08 08:44:17,088 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:44:17,090 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:44:17,090 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:44:17,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:44:17,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:44:16" (1/3) ... [2025-02-08 08:44:17,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f442ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:44:17, skipping insertion in model container [2025-02-08 08:44:17,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:44:16" (2/3) ... [2025-02-08 08:44:17,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f442ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:44:17, skipping insertion in model container [2025-02-08 08:44:17,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:44:17" (3/3) ... [2025-02-08 08:44:17,100 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy11.wvr.c [2025-02-08 08:44:17,110 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:44:17,111 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy11.wvr.c that has 3 procedures, 23 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-08 08:44:17,111 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:44:17,136 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 08:44:17,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 24 transitions, 62 flow [2025-02-08 08:44:17,186 INFO L124 PetriNetUnfolderBase]: 2/22 cut-off events. [2025-02-08 08:44:17,188 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:44:17,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 22 events. 2/22 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2025-02-08 08:44:17,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 24 transitions, 62 flow [2025-02-08 08:44:17,195 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2025-02-08 08:44:17,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:44:17,208 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=None, 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;@549e1693, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:44:17,208 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 08:44:17,214 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:44:17,214 INFO L124 PetriNetUnfolderBase]: 2/18 cut-off events. [2025-02-08 08:44:17,214 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:44:17,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:17,215 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:17,215 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:17,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:17,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1687604867, now seen corresponding path program 1 times [2025-02-08 08:44:17,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:17,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939009732] [2025-02-08 08:44:17,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:44:17,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:17,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:17,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:17,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:17,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:17,601 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 08:44:17,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:17,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939009732] [2025-02-08 08:44:17,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939009732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:17,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:17,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692769898] [2025-02-08 08:44:17,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:17,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:17,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:17,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:17,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:17,660 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:17,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 54 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:17,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:17,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:17,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:17,906 INFO L124 PetriNetUnfolderBase]: 111/201 cut-off events. [2025-02-08 08:44:17,906 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2025-02-08 08:44:17,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 201 events. 111/201 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 610 event pairs, 2 based on Foata normal form. 2/175 useless extension candidates. Maximal degree in co-relation 364. Up to 57 conditions per place. [2025-02-08 08:44:17,909 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 40 selfloop transitions, 10 changer transitions 10/61 dead transitions. [2025-02-08 08:44:17,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 61 transitions, 278 flow [2025-02-08 08:44:17,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:17,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 98 transitions. [2025-02-08 08:44:17,918 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2025-02-08 08:44:17,920 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 54 flow. Second operand 9 states and 98 transitions. [2025-02-08 08:44:17,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 61 transitions, 278 flow [2025-02-08 08:44:17,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 61 transitions, 254 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:17,928 INFO L231 Difference]: Finished difference. Result has 34 places, 27 transitions, 107 flow [2025-02-08 08:44:17,929 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=107, PETRI_PLACES=34, PETRI_TRANSITIONS=27} [2025-02-08 08:44:17,931 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2025-02-08 08:44:17,932 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 27 transitions, 107 flow [2025-02-08 08:44:17,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:17,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:17,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:17,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:44:17,932 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:17,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:17,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1876133725, now seen corresponding path program 2 times [2025-02-08 08:44:17,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:17,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316942940] [2025-02-08 08:44:17,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:17,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:17,942 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:17,946 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:17,946 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:44:17,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:18,081 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 08:44:18,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:18,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316942940] [2025-02-08 08:44:18,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316942940] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:18,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:18,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:18,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637702353] [2025-02-08 08:44:18,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:18,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:18,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:18,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:18,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:18,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:18,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 107 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:18,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:18,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:18,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:18,274 INFO L124 PetriNetUnfolderBase]: 114/208 cut-off events. [2025-02-08 08:44:18,275 INFO L125 PetriNetUnfolderBase]: For 94/94 co-relation queries the response was YES. [2025-02-08 08:44:18,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 208 events. 114/208 cut-off events. For 94/94 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 609 event pairs, 14 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 575. Up to 115 conditions per place. [2025-02-08 08:44:18,278 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 34 selfloop transitions, 14 changer transitions 10/59 dead transitions. [2025-02-08 08:44:18,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 59 transitions, 336 flow [2025-02-08 08:44:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:18,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2025-02-08 08:44:18,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2025-02-08 08:44:18,282 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 107 flow. Second operand 9 states and 92 transitions. [2025-02-08 08:44:18,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 59 transitions, 336 flow [2025-02-08 08:44:18,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 59 transitions, 324 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 08:44:18,285 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 190 flow [2025-02-08 08:44:18,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=190, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2025-02-08 08:44:18,287 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 17 predicate places. [2025-02-08 08:44:18,287 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 190 flow [2025-02-08 08:44:18,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:18,287 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:18,288 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:18,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:44:18,288 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:18,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:18,288 INFO L85 PathProgramCache]: Analyzing trace with hash -378356007, now seen corresponding path program 3 times [2025-02-08 08:44:18,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:18,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311551210] [2025-02-08 08:44:18,288 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:18,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:18,299 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:18,304 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:18,304 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:44:18,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:18,464 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 08:44:18,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:18,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311551210] [2025-02-08 08:44:18,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311551210] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:18,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:18,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246049970] [2025-02-08 08:44:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:18,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:18,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:18,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:18,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:18,477 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:18,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 190 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:18,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:18,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:18,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:18,643 INFO L124 PetriNetUnfolderBase]: 119/216 cut-off events. [2025-02-08 08:44:18,643 INFO L125 PetriNetUnfolderBase]: For 194/194 co-relation queries the response was YES. [2025-02-08 08:44:18,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 705 conditions, 216 events. 119/216 cut-off events. For 194/194 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 670 event pairs, 10 based on Foata normal form. 1/217 useless extension candidates. Maximal degree in co-relation 688. Up to 119 conditions per place. [2025-02-08 08:44:18,645 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 39 selfloop transitions, 18 changer transitions 9/67 dead transitions. [2025-02-08 08:44:18,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 67 transitions, 450 flow [2025-02-08 08:44:18,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:18,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:18,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2025-02-08 08:44:18,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2025-02-08 08:44:18,646 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 190 flow. Second operand 9 states and 95 transitions. [2025-02-08 08:44:18,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 67 transitions, 450 flow [2025-02-08 08:44:18,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 67 transitions, 418 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:18,649 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 257 flow [2025-02-08 08:44:18,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=257, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2025-02-08 08:44:18,649 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2025-02-08 08:44:18,650 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 257 flow [2025-02-08 08:44:18,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:18,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:18,650 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:18,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:44:18,650 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:18,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:18,651 INFO L85 PathProgramCache]: Analyzing trace with hash -943838151, now seen corresponding path program 4 times [2025-02-08 08:44:18,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:18,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859543143] [2025-02-08 08:44:18,651 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:18,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:18,655 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:44:18,658 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:18,658 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:18,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:18,775 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 08:44:18,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:18,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859543143] [2025-02-08 08:44:18,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859543143] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:18,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:18,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:18,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352882613] [2025-02-08 08:44:18,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:18,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:18,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:18,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:18,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:18,787 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:18,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 257 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:18,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:18,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:18,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:18,979 INFO L124 PetriNetUnfolderBase]: 194/329 cut-off events. [2025-02-08 08:44:18,980 INFO L125 PetriNetUnfolderBase]: For 651/651 co-relation queries the response was YES. [2025-02-08 08:44:18,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1221 conditions, 329 events. 194/329 cut-off events. For 651/651 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1095 event pairs, 29 based on Foata normal form. 1/330 useless extension candidates. Maximal degree in co-relation 1203. Up to 140 conditions per place. [2025-02-08 08:44:18,982 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 44 selfloop transitions, 35 changer transitions 10/90 dead transitions. [2025-02-08 08:44:18,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 90 transitions, 737 flow [2025-02-08 08:44:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:44:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:44:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 98 transitions. [2025-02-08 08:44:18,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2025-02-08 08:44:18,983 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 257 flow. Second operand 8 states and 98 transitions. [2025-02-08 08:44:18,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 90 transitions, 737 flow [2025-02-08 08:44:18,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 90 transitions, 661 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 08:44:18,987 INFO L231 Difference]: Finished difference. Result has 53 places, 61 transitions, 490 flow [2025-02-08 08:44:18,987 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=490, PETRI_PLACES=53, PETRI_TRANSITIONS=61} [2025-02-08 08:44:18,988 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 27 predicate places. [2025-02-08 08:44:18,988 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 61 transitions, 490 flow [2025-02-08 08:44:18,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:18,988 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:18,988 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:18,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:44:18,989 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:18,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:18,989 INFO L85 PathProgramCache]: Analyzing trace with hash -297959049, now seen corresponding path program 5 times [2025-02-08 08:44:18,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:18,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188498206] [2025-02-08 08:44:18,989 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:18,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:18,994 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:18,996 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:18,996 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:44:18,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:19,079 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 08:44:19,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:19,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188498206] [2025-02-08 08:44:19,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188498206] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:19,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:19,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:19,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84179775] [2025-02-08 08:44:19,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:19,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:19,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:19,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:19,084 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:19,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 61 transitions, 490 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:19,084 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:19,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:19,240 INFO L124 PetriNetUnfolderBase]: 190/328 cut-off events. [2025-02-08 08:44:19,240 INFO L125 PetriNetUnfolderBase]: For 929/929 co-relation queries the response was YES. [2025-02-08 08:44:19,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 328 events. 190/328 cut-off events. For 929/929 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1151 event pairs, 14 based on Foata normal form. 1/329 useless extension candidates. Maximal degree in co-relation 1377. Up to 176 conditions per place. [2025-02-08 08:44:19,243 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 49 selfloop transitions, 28 changer transitions 12/90 dead transitions. [2025-02-08 08:44:19,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 90 transitions, 815 flow [2025-02-08 08:44:19,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:19,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:19,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2025-02-08 08:44:19,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2025-02-08 08:44:19,244 INFO L175 Difference]: Start difference. First operand has 53 places, 61 transitions, 490 flow. Second operand 9 states and 95 transitions. [2025-02-08 08:44:19,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 90 transitions, 815 flow [2025-02-08 08:44:19,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 90 transitions, 782 flow, removed 7 selfloop flow, removed 2 redundant places. [2025-02-08 08:44:19,248 INFO L231 Difference]: Finished difference. Result has 60 places, 59 transitions, 499 flow [2025-02-08 08:44:19,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=499, PETRI_PLACES=60, PETRI_TRANSITIONS=59} [2025-02-08 08:44:19,249 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 34 predicate places. [2025-02-08 08:44:19,249 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 59 transitions, 499 flow [2025-02-08 08:44:19,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:19,249 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:19,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:44:19,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:19,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:19,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1984073949, now seen corresponding path program 6 times [2025-02-08 08:44:19,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:19,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688677869] [2025-02-08 08:44:19,250 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:19,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:19,254 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:19,256 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:19,256 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:44:19,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:19,331 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 08:44:19,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:19,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688677869] [2025-02-08 08:44:19,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688677869] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:19,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:19,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:19,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964852695] [2025-02-08 08:44:19,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:19,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:19,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:19,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:19,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:19,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:19,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 499 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:19,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:19,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:19,530 INFO L124 PetriNetUnfolderBase]: 209/354 cut-off events. [2025-02-08 08:44:19,530 INFO L125 PetriNetUnfolderBase]: For 1188/1188 co-relation queries the response was YES. [2025-02-08 08:44:19,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1595 conditions, 354 events. 209/354 cut-off events. For 1188/1188 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1228 event pairs, 22 based on Foata normal form. 1/355 useless extension candidates. Maximal degree in co-relation 1573. Up to 186 conditions per place. [2025-02-08 08:44:19,533 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 48 selfloop transitions, 36 changer transitions 9/94 dead transitions. [2025-02-08 08:44:19,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 94 transitions, 927 flow [2025-02-08 08:44:19,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2025-02-08 08:44:19,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2025-02-08 08:44:19,534 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 499 flow. Second operand 9 states and 95 transitions. [2025-02-08 08:44:19,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 94 transitions, 927 flow [2025-02-08 08:44:19,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 94 transitions, 851 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:19,539 INFO L231 Difference]: Finished difference. Result has 62 places, 70 transitions, 675 flow [2025-02-08 08:44:19,539 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=675, PETRI_PLACES=62, PETRI_TRANSITIONS=70} [2025-02-08 08:44:19,541 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 36 predicate places. [2025-02-08 08:44:19,541 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 70 transitions, 675 flow [2025-02-08 08:44:19,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:19,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:19,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:44:19,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:19,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:19,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1088583425, now seen corresponding path program 7 times [2025-02-08 08:44:19,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:19,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302352652] [2025-02-08 08:44:19,542 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:19,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:19,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:19,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:19,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:19,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:19,662 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 08:44:19,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:19,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302352652] [2025-02-08 08:44:19,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302352652] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:19,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:19,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:19,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346997013] [2025-02-08 08:44:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:19,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:19,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:19,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:19,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:19,683 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:19,683 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 70 transitions, 675 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:19,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:19,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:19,849 INFO L124 PetriNetUnfolderBase]: 218/369 cut-off events. [2025-02-08 08:44:19,850 INFO L125 PetriNetUnfolderBase]: For 1574/1574 co-relation queries the response was YES. [2025-02-08 08:44:19,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 369 events. 218/369 cut-off events. For 1574/1574 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1314 event pairs, 18 based on Foata normal form. 1/370 useless extension candidates. Maximal degree in co-relation 1750. Up to 189 conditions per place. [2025-02-08 08:44:19,853 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 58 selfloop transitions, 35 changer transitions 10/104 dead transitions. [2025-02-08 08:44:19,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 1082 flow [2025-02-08 08:44:19,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2025-02-08 08:44:19,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2025-02-08 08:44:19,854 INFO L175 Difference]: Start difference. First operand has 62 places, 70 transitions, 675 flow. Second operand 9 states and 97 transitions. [2025-02-08 08:44:19,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 1082 flow [2025-02-08 08:44:19,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 104 transitions, 1019 flow, removed 16 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:19,858 INFO L231 Difference]: Finished difference. Result has 67 places, 71 transitions, 710 flow [2025-02-08 08:44:19,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=710, PETRI_PLACES=67, PETRI_TRANSITIONS=71} [2025-02-08 08:44:19,859 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 41 predicate places. [2025-02-08 08:44:19,859 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 71 transitions, 710 flow [2025-02-08 08:44:19,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:19,859 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:19,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:44:19,859 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:19,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:19,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1018200695, now seen corresponding path program 8 times [2025-02-08 08:44:19,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:19,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426655003] [2025-02-08 08:44:19,860 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:19,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:19,863 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:19,865 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:19,865 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:44:19,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:19,963 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 08:44:19,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:19,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426655003] [2025-02-08 08:44:19,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426655003] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:19,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:19,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391785438] [2025-02-08 08:44:19,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:19,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:19,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:19,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:19,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:19,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:19,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 71 transitions, 710 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:19,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:19,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:19,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:20,170 INFO L124 PetriNetUnfolderBase]: 228/389 cut-off events. [2025-02-08 08:44:20,170 INFO L125 PetriNetUnfolderBase]: For 1894/1894 co-relation queries the response was YES. [2025-02-08 08:44:20,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1913 conditions, 389 events. 228/389 cut-off events. For 1894/1894 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1413 event pairs, 22 based on Foata normal form. 1/390 useless extension candidates. Maximal degree in co-relation 1887. Up to 200 conditions per place. [2025-02-08 08:44:20,173 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 52 selfloop transitions, 39 changer transitions 10/102 dead transitions. [2025-02-08 08:44:20,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 102 transitions, 1097 flow [2025-02-08 08:44:20,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:20,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 100 transitions. [2025-02-08 08:44:20,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2025-02-08 08:44:20,174 INFO L175 Difference]: Start difference. First operand has 67 places, 71 transitions, 710 flow. Second operand 9 states and 100 transitions. [2025-02-08 08:44:20,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 102 transitions, 1097 flow [2025-02-08 08:44:20,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 1007 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:20,179 INFO L231 Difference]: Finished difference. Result has 70 places, 75 transitions, 772 flow [2025-02-08 08:44:20,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=772, PETRI_PLACES=70, PETRI_TRANSITIONS=75} [2025-02-08 08:44:20,180 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 44 predicate places. [2025-02-08 08:44:20,180 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 75 transitions, 772 flow [2025-02-08 08:44:20,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:20,180 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:20,180 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:20,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:44:20,181 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:20,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:20,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1448844147, now seen corresponding path program 9 times [2025-02-08 08:44:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:20,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845031442] [2025-02-08 08:44:20,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:20,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:20,185 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:20,187 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:20,187 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:44:20,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:20,270 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 08:44:20,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:20,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845031442] [2025-02-08 08:44:20,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845031442] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:20,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:20,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:20,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024304640] [2025-02-08 08:44:20,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:20,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:20,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:20,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:20,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:20,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:20,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 75 transitions, 772 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:20,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:20,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:20,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:20,470 INFO L124 PetriNetUnfolderBase]: 222/382 cut-off events. [2025-02-08 08:44:20,470 INFO L125 PetriNetUnfolderBase]: For 2054/2054 co-relation queries the response was YES. [2025-02-08 08:44:20,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 382 events. 222/382 cut-off events. For 2054/2054 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1382 event pairs, 27 based on Foata normal form. 1/383 useless extension candidates. Maximal degree in co-relation 1891. Up to 214 conditions per place. [2025-02-08 08:44:20,473 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 51 selfloop transitions, 37 changer transitions 9/98 dead transitions. [2025-02-08 08:44:20,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 98 transitions, 1093 flow [2025-02-08 08:44:20,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:20,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2025-02-08 08:44:20,474 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2025-02-08 08:44:20,474 INFO L175 Difference]: Start difference. First operand has 70 places, 75 transitions, 772 flow. Second operand 9 states and 95 transitions. [2025-02-08 08:44:20,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 98 transitions, 1093 flow [2025-02-08 08:44:20,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 98 transitions, 1015 flow, removed 11 selfloop flow, removed 5 redundant places. [2025-02-08 08:44:20,480 INFO L231 Difference]: Finished difference. Result has 74 places, 75 transitions, 782 flow [2025-02-08 08:44:20,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=782, PETRI_PLACES=74, PETRI_TRANSITIONS=75} [2025-02-08 08:44:20,480 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 48 predicate places. [2025-02-08 08:44:20,480 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 75 transitions, 782 flow [2025-02-08 08:44:20,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:20,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:20,481 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:20,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:44:20,481 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:20,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:20,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1368447189, now seen corresponding path program 10 times [2025-02-08 08:44:20,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:20,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183371166] [2025-02-08 08:44:20,482 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:20,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:20,485 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:44:20,491 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:20,491 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:20,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:20,670 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 08:44:20,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:20,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183371166] [2025-02-08 08:44:20,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183371166] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:20,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:20,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:20,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877838348] [2025-02-08 08:44:20,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:20,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:20,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:20,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:20,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:20,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:20,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 782 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:20,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:20,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:20,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:20,918 INFO L124 PetriNetUnfolderBase]: 294/496 cut-off events. [2025-02-08 08:44:20,918 INFO L125 PetriNetUnfolderBase]: For 2894/2894 co-relation queries the response was YES. [2025-02-08 08:44:20,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 496 events. 294/496 cut-off events. For 2894/2894 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1931 event pairs, 48 based on Foata normal form. 1/497 useless extension candidates. Maximal degree in co-relation 2561. Up to 237 conditions per place. [2025-02-08 08:44:20,922 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 62 selfloop transitions, 51 changer transitions 10/124 dead transitions. [2025-02-08 08:44:20,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 124 transitions, 1503 flow [2025-02-08 08:44:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:44:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:44:20,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 99 transitions. [2025-02-08 08:44:20,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.515625 [2025-02-08 08:44:20,923 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 782 flow. Second operand 8 states and 99 transitions. [2025-02-08 08:44:20,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 124 transitions, 1503 flow [2025-02-08 08:44:20,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 124 transitions, 1375 flow, removed 9 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:20,930 INFO L231 Difference]: Finished difference. Result has 77 places, 95 transitions, 1108 flow [2025-02-08 08:44:20,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1108, PETRI_PLACES=77, PETRI_TRANSITIONS=95} [2025-02-08 08:44:20,931 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 51 predicate places. [2025-02-08 08:44:20,931 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 95 transitions, 1108 flow [2025-02-08 08:44:20,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:20,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:20,931 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:20,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:44:20,931 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:20,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:20,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2062931793, now seen corresponding path program 11 times [2025-02-08 08:44:20,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:20,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30716848] [2025-02-08 08:44:20,932 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:20,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:20,935 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:20,937 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:20,937 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:44:20,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:21,027 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 08:44:21,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:21,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30716848] [2025-02-08 08:44:21,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30716848] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:21,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:21,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:21,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068952917] [2025-02-08 08:44:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:21,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:21,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:21,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:21,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:21,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:21,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 95 transitions, 1108 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:21,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:21,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:21,252 INFO L124 PetriNetUnfolderBase]: 309/522 cut-off events. [2025-02-08 08:44:21,252 INFO L125 PetriNetUnfolderBase]: For 3051/3051 co-relation queries the response was YES. [2025-02-08 08:44:21,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 522 events. 309/522 cut-off events. For 3051/3051 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2059 event pairs, 33 based on Foata normal form. 1/523 useless extension candidates. Maximal degree in co-relation 2780. Up to 266 conditions per place. [2025-02-08 08:44:21,256 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 57 selfloop transitions, 53 changer transitions 10/121 dead transitions. [2025-02-08 08:44:21,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 121 transitions, 1496 flow [2025-02-08 08:44:21,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:21,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2025-02-08 08:44:21,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2025-02-08 08:44:21,257 INFO L175 Difference]: Start difference. First operand has 77 places, 95 transitions, 1108 flow. Second operand 9 states and 96 transitions. [2025-02-08 08:44:21,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 121 transitions, 1496 flow [2025-02-08 08:44:21,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 121 transitions, 1444 flow, removed 10 selfloop flow, removed 2 redundant places. [2025-02-08 08:44:21,265 INFO L231 Difference]: Finished difference. Result has 85 places, 96 transitions, 1194 flow [2025-02-08 08:44:21,265 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1059, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1194, PETRI_PLACES=85, PETRI_TRANSITIONS=96} [2025-02-08 08:44:21,266 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 59 predicate places. [2025-02-08 08:44:21,266 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 96 transitions, 1194 flow [2025-02-08 08:44:21,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,266 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:21,266 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:21,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:44:21,266 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:21,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:21,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2060788335, now seen corresponding path program 12 times [2025-02-08 08:44:21,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:21,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739996953] [2025-02-08 08:44:21,267 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:21,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:21,270 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:21,272 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:21,272 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:44:21,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:21,345 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 08:44:21,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:21,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739996953] [2025-02-08 08:44:21,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739996953] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:21,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:21,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:21,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579186240] [2025-02-08 08:44:21,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:21,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:21,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:21,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:21,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:21,355 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:21,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 96 transitions, 1194 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:21,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:21,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:21,530 INFO L124 PetriNetUnfolderBase]: 327/554 cut-off events. [2025-02-08 08:44:21,530 INFO L125 PetriNetUnfolderBase]: For 4298/4298 co-relation queries the response was YES. [2025-02-08 08:44:21,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3128 conditions, 554 events. 327/554 cut-off events. For 4298/4298 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2200 event pairs, 42 based on Foata normal form. 1/555 useless extension candidates. Maximal degree in co-relation 3094. Up to 288 conditions per place. [2025-02-08 08:44:21,534 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 62 selfloop transitions, 57 changer transitions 12/132 dead transitions. [2025-02-08 08:44:21,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 132 transitions, 1795 flow [2025-02-08 08:44:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:21,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2025-02-08 08:44:21,535 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4398148148148148 [2025-02-08 08:44:21,535 INFO L175 Difference]: Start difference. First operand has 85 places, 96 transitions, 1194 flow. Second operand 9 states and 95 transitions. [2025-02-08 08:44:21,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 132 transitions, 1795 flow [2025-02-08 08:44:21,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 132 transitions, 1654 flow, removed 11 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:21,544 INFO L231 Difference]: Finished difference. Result has 89 places, 107 transitions, 1420 flow [2025-02-08 08:44:21,545 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1069, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1420, PETRI_PLACES=89, PETRI_TRANSITIONS=107} [2025-02-08 08:44:21,545 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 63 predicate places. [2025-02-08 08:44:21,545 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 107 transitions, 1420 flow [2025-02-08 08:44:21,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:21,545 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:21,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:44:21,546 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:21,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:21,546 INFO L85 PathProgramCache]: Analyzing trace with hash 22035103, now seen corresponding path program 13 times [2025-02-08 08:44:21,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:21,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055678356] [2025-02-08 08:44:21,546 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:21,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:21,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:21,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:21,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:21,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:21,619 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 08:44:21,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:21,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055678356] [2025-02-08 08:44:21,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055678356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:21,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:21,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:21,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254765478] [2025-02-08 08:44:21,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:21,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:21,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:21,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:21,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:21,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:21,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 107 transitions, 1420 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:21,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:21,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:21,807 INFO L124 PetriNetUnfolderBase]: 353/600 cut-off events. [2025-02-08 08:44:21,808 INFO L125 PetriNetUnfolderBase]: For 4984/4984 co-relation queries the response was YES. [2025-02-08 08:44:21,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3464 conditions, 600 events. 353/600 cut-off events. For 4984/4984 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2443 event pairs, 39 based on Foata normal form. 1/601 useless extension candidates. Maximal degree in co-relation 3427. Up to 300 conditions per place. [2025-02-08 08:44:21,812 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 64 selfloop transitions, 62 changer transitions 11/138 dead transitions. [2025-02-08 08:44:21,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 138 transitions, 1938 flow [2025-02-08 08:44:21,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2025-02-08 08:44:21,813 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2025-02-08 08:44:21,813 INFO L175 Difference]: Start difference. First operand has 89 places, 107 transitions, 1420 flow. Second operand 9 states and 97 transitions. [2025-02-08 08:44:21,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 138 transitions, 1938 flow [2025-02-08 08:44:21,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 138 transitions, 1824 flow, removed 35 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:21,825 INFO L231 Difference]: Finished difference. Result has 95 places, 112 transitions, 1554 flow [2025-02-08 08:44:21,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1554, PETRI_PLACES=95, PETRI_TRANSITIONS=112} [2025-02-08 08:44:21,826 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 69 predicate places. [2025-02-08 08:44:21,826 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 112 transitions, 1554 flow [2025-02-08 08:44:21,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,826 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:21,826 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:21,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 08:44:21,826 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:21,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:21,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1508905443, now seen corresponding path program 14 times [2025-02-08 08:44:21,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:21,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872437728] [2025-02-08 08:44:21,827 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:21,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:21,829 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:21,831 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:21,831 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:44:21,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:21,902 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 08:44:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:21,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872437728] [2025-02-08 08:44:21,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872437728] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:21,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:21,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:21,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623578452] [2025-02-08 08:44:21,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:21,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:21,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:21,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:21,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:21,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:21,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 112 transitions, 1554 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:21,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:21,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:21,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:22,096 INFO L124 PetriNetUnfolderBase]: 349/598 cut-off events. [2025-02-08 08:44:22,096 INFO L125 PetriNetUnfolderBase]: For 5438/5438 co-relation queries the response was YES. [2025-02-08 08:44:22,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3563 conditions, 598 events. 349/598 cut-off events. For 5438/5438 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2481 event pairs, 43 based on Foata normal form. 1/599 useless extension candidates. Maximal degree in co-relation 3524. Up to 330 conditions per place. [2025-02-08 08:44:22,101 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 76 selfloop transitions, 53 changer transitions 9/139 dead transitions. [2025-02-08 08:44:22,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 139 transitions, 2053 flow [2025-02-08 08:44:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:22,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2025-02-08 08:44:22,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2025-02-08 08:44:22,102 INFO L175 Difference]: Start difference. First operand has 95 places, 112 transitions, 1554 flow. Second operand 9 states and 93 transitions. [2025-02-08 08:44:22,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 139 transitions, 2053 flow [2025-02-08 08:44:22,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 139 transitions, 1933 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-02-08 08:44:22,113 INFO L231 Difference]: Finished difference. Result has 99 places, 114 transitions, 1581 flow [2025-02-08 08:44:22,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1434, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1581, PETRI_PLACES=99, PETRI_TRANSITIONS=114} [2025-02-08 08:44:22,114 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2025-02-08 08:44:22,114 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 114 transitions, 1581 flow [2025-02-08 08:44:22,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:22,114 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:22,115 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 08:44:22,115 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:22,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash -328211391, now seen corresponding path program 15 times [2025-02-08 08:44:22,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:22,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409268164] [2025-02-08 08:44:22,115 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:22,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:22,118 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:44:22,120 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:22,120 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:44:22,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:22,187 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 08:44:22,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:22,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409268164] [2025-02-08 08:44:22,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409268164] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:22,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:22,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:22,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376908958] [2025-02-08 08:44:22,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:22,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:22,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:22,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:22,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:22,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:22,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 114 transitions, 1581 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:22,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:22,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:22,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:22,394 INFO L124 PetriNetUnfolderBase]: 341/586 cut-off events. [2025-02-08 08:44:22,394 INFO L125 PetriNetUnfolderBase]: For 5329/5329 co-relation queries the response was YES. [2025-02-08 08:44:22,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3477 conditions, 586 events. 341/586 cut-off events. For 5329/5329 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2415 event pairs, 44 based on Foata normal form. 1/587 useless extension candidates. Maximal degree in co-relation 3437. Up to 320 conditions per place. [2025-02-08 08:44:22,399 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 64 selfloop transitions, 58 changer transitions 12/135 dead transitions. [2025-02-08 08:44:22,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 135 transitions, 1995 flow [2025-02-08 08:44:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 94 transitions. [2025-02-08 08:44:22,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4351851851851852 [2025-02-08 08:44:22,400 INFO L175 Difference]: Start difference. First operand has 99 places, 114 transitions, 1581 flow. Second operand 9 states and 94 transitions. [2025-02-08 08:44:22,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 135 transitions, 1995 flow [2025-02-08 08:44:22,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 135 transitions, 1866 flow, removed 13 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:22,411 INFO L231 Difference]: Finished difference. Result has 100 places, 111 transitions, 1544 flow [2025-02-08 08:44:22,411 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1544, PETRI_PLACES=100, PETRI_TRANSITIONS=111} [2025-02-08 08:44:22,411 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 74 predicate places. [2025-02-08 08:44:22,412 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 111 transitions, 1544 flow [2025-02-08 08:44:22,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:22,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:22,412 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:22,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 08:44:22,412 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:22,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:22,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1511531219, now seen corresponding path program 16 times [2025-02-08 08:44:22,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:22,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049734979] [2025-02-08 08:44:22,413 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:22,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:22,416 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:44:22,419 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:44:22,420 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:22,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:22,553 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 08:44:22,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:22,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049734979] [2025-02-08 08:44:22,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049734979] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:22,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:22,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:44:22,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842207570] [2025-02-08 08:44:22,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:22,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:22,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:22,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:22,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-08 08:44:22,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:22,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 111 transitions, 1544 flow. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:22,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:22,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:22,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:22,742 INFO L124 PetriNetUnfolderBase]: 359/618 cut-off events. [2025-02-08 08:44:22,742 INFO L125 PetriNetUnfolderBase]: For 5570/5570 co-relation queries the response was YES. [2025-02-08 08:44:22,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3587 conditions, 618 events. 359/618 cut-off events. For 5570/5570 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2643 event pairs, 62 based on Foata normal form. 1/619 useless extension candidates. Maximal degree in co-relation 3547. Up to 262 conditions per place. [2025-02-08 08:44:22,747 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 75 selfloop transitions, 57 changer transitions 11/144 dead transitions. [2025-02-08 08:44:22,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 144 transitions, 2114 flow [2025-02-08 08:44:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:22,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2025-02-08 08:44:22,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44907407407407407 [2025-02-08 08:44:22,751 INFO L175 Difference]: Start difference. First operand has 100 places, 111 transitions, 1544 flow. Second operand 9 states and 97 transitions. [2025-02-08 08:44:22,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 144 transitions, 2114 flow [2025-02-08 08:44:22,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 144 transitions, 1984 flow, removed 7 selfloop flow, removed 6 redundant places. [2025-02-08 08:44:22,762 INFO L231 Difference]: Finished difference. Result has 105 places, 115 transitions, 1636 flow [2025-02-08 08:44:22,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1418, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1636, PETRI_PLACES=105, PETRI_TRANSITIONS=115} [2025-02-08 08:44:22,763 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 79 predicate places. [2025-02-08 08:44:22,763 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 115 transitions, 1636 flow [2025-02-08 08:44:22,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 08:44:22,764 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:22,764 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:22,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 08:44:22,764 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:22,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:22,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1055497686, now seen corresponding path program 1 times [2025-02-08 08:44:22,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:22,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650130378] [2025-02-08 08:44:22,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:44:22,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:22,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:44:22,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:22,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:22,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:22,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:22,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650130378] [2025-02-08 08:44:22,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650130378] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:22,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:22,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:44:22,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628010667] [2025-02-08 08:44:22,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:22,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:22,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:22,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:22,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:44:22,799 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:22,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 115 transitions, 1636 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:22,799 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:22,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:22,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:22,930 INFO L124 PetriNetUnfolderBase]: 382/674 cut-off events. [2025-02-08 08:44:22,931 INFO L125 PetriNetUnfolderBase]: For 6842/6842 co-relation queries the response was YES. [2025-02-08 08:44:22,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3930 conditions, 674 events. 382/674 cut-off events. For 6842/6842 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3007 event pairs, 43 based on Foata normal form. 12/686 useless extension candidates. Maximal degree in co-relation 3882. Up to 213 conditions per place. [2025-02-08 08:44:22,935 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 100 selfloop transitions, 42 changer transitions 8/151 dead transitions. [2025-02-08 08:44:22,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 151 transitions, 2238 flow [2025-02-08 08:44:22,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:44:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:44:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 84 transitions. [2025-02-08 08:44:22,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-08 08:44:22,936 INFO L175 Difference]: Start difference. First operand has 105 places, 115 transitions, 1636 flow. Second operand 7 states and 84 transitions. [2025-02-08 08:44:22,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 151 transitions, 2238 flow [2025-02-08 08:44:22,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 151 transitions, 2136 flow, removed 21 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:22,948 INFO L231 Difference]: Finished difference. Result has 109 places, 120 transitions, 1751 flow [2025-02-08 08:44:22,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1518, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1751, PETRI_PLACES=109, PETRI_TRANSITIONS=120} [2025-02-08 08:44:22,948 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 83 predicate places. [2025-02-08 08:44:22,948 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 120 transitions, 1751 flow [2025-02-08 08:44:22,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:22,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:22,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:22,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 08:44:22,949 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:22,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:22,949 INFO L85 PathProgramCache]: Analyzing trace with hash -739710094, now seen corresponding path program 2 times [2025-02-08 08:44:22,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:22,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487823554] [2025-02-08 08:44:22,949 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:22,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:22,953 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:22,956 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:22,957 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:22,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:22,976 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 08:44:22,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487823554] [2025-02-08 08:44:22,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487823554] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:22,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054757346] [2025-02-08 08:44:22,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:22,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:22,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:22,979 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 08:44:22,980 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 08:44:23,012 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:23,020 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:23,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:23,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:23,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:44:23,024 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:23,049 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 08:44:23,050 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:23,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054757346] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:23,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:44:23,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2025-02-08 08:44:23,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152184743] [2025-02-08 08:44:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:23,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:23,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:23,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:23,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:44:23,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:23,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 120 transitions, 1751 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:23,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:23,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:23,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:23,248 INFO L124 PetriNetUnfolderBase]: 477/846 cut-off events. [2025-02-08 08:44:23,248 INFO L125 PetriNetUnfolderBase]: For 10597/10597 co-relation queries the response was YES. [2025-02-08 08:44:23,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5075 conditions, 846 events. 477/846 cut-off events. For 10597/10597 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3961 event pairs, 83 based on Foata normal form. 8/854 useless extension candidates. Maximal degree in co-relation 4588. Up to 322 conditions per place. [2025-02-08 08:44:23,253 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 132 selfloop transitions, 44 changer transitions 0/177 dead transitions. [2025-02-08 08:44:23,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 177 transitions, 2655 flow [2025-02-08 08:44:23,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:44:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:44:23,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2025-02-08 08:44:23,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2025-02-08 08:44:23,254 INFO L175 Difference]: Start difference. First operand has 109 places, 120 transitions, 1751 flow. Second operand 6 states and 92 transitions. [2025-02-08 08:44:23,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 177 transitions, 2655 flow [2025-02-08 08:44:23,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 177 transitions, 2504 flow, removed 43 selfloop flow, removed 3 redundant places. [2025-02-08 08:44:23,270 INFO L231 Difference]: Finished difference. Result has 114 places, 128 transitions, 1932 flow [2025-02-08 08:44:23,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1638, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1932, PETRI_PLACES=114, PETRI_TRANSITIONS=128} [2025-02-08 08:44:23,271 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 88 predicate places. [2025-02-08 08:44:23,271 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 128 transitions, 1932 flow [2025-02-08 08:44:23,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:23,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:23,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:23,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:44:23,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-08 08:44:23,476 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:23,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:23,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1508732253, now seen corresponding path program 1 times [2025-02-08 08:44:23,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:23,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21764732] [2025-02-08 08:44:23,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:44:23,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:23,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:44:23,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:23,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:23,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:23,500 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 08:44:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21764732] [2025-02-08 08:44:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21764732] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724811054] [2025-02-08 08:44:23,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:44:23,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:23,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:23,503 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 08:44:23,505 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 08:44:23,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:44:23,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:23,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:23,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:23,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:44:23,539 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:23,548 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 08:44:23,549 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:23,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:23,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724811054] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:23,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:44:23,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 6 [2025-02-08 08:44:23,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884263129] [2025-02-08 08:44:23,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:23,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:23,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:23,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:23,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:44:23,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:23,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 128 transitions, 1932 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:23,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:23,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:23,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:23,679 INFO L124 PetriNetUnfolderBase]: 470/833 cut-off events. [2025-02-08 08:44:23,680 INFO L125 PetriNetUnfolderBase]: For 9918/9918 co-relation queries the response was YES. [2025-02-08 08:44:23,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5069 conditions, 833 events. 470/833 cut-off events. For 9918/9918 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3882 event pairs, 47 based on Foata normal form. 13/846 useless extension candidates. Maximal degree in co-relation 4558. Up to 381 conditions per place. [2025-02-08 08:44:23,685 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 108 selfloop transitions, 37 changer transitions 0/146 dead transitions. [2025-02-08 08:44:23,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 146 transitions, 2320 flow [2025-02-08 08:44:23,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:44:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:44:23,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 69 transitions. [2025-02-08 08:44:23,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.575 [2025-02-08 08:44:23,686 INFO L175 Difference]: Start difference. First operand has 114 places, 128 transitions, 1932 flow. Second operand 5 states and 69 transitions. [2025-02-08 08:44:23,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 146 transitions, 2320 flow [2025-02-08 08:44:23,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 146 transitions, 2203 flow, removed 30 selfloop flow, removed 3 redundant places. [2025-02-08 08:44:23,704 INFO L231 Difference]: Finished difference. Result has 114 places, 121 transitions, 1808 flow [2025-02-08 08:44:23,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1686, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1808, PETRI_PLACES=114, PETRI_TRANSITIONS=121} [2025-02-08 08:44:23,705 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 88 predicate places. [2025-02-08 08:44:23,705 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 1808 flow [2025-02-08 08:44:23,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:23,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:23,705 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:23,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:23,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:23,905 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:23,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:23,906 INFO L85 PathProgramCache]: Analyzing trace with hash 164929437, now seen corresponding path program 2 times [2025-02-08 08:44:23,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:23,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463789583] [2025-02-08 08:44:23,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:23,909 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:23,911 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:23,911 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:23,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:23,929 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 08:44:23,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463789583] [2025-02-08 08:44:23,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463789583] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:23,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596618496] [2025-02-08 08:44:23,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:23,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:23,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:23,933 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 08:44:23,934 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 08:44:23,956 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:23,965 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:23,965 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:23,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:23,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:44:23,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:23,972 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 08:44:23,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:23,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:23,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596618496] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:23,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:44:23,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 7 [2025-02-08 08:44:23,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230437515] [2025-02-08 08:44:23,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:23,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:23,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:23,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:23,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:44:23,999 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:23,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 121 transitions, 1808 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:23,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:23,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:23,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:24,178 INFO L124 PetriNetUnfolderBase]: 584/1057 cut-off events. [2025-02-08 08:44:24,179 INFO L125 PetriNetUnfolderBase]: For 11696/11696 co-relation queries the response was YES. [2025-02-08 08:44:24,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6031 conditions, 1057 events. 584/1057 cut-off events. For 11696/11696 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5383 event pairs, 38 based on Foata normal form. 9/1066 useless extension candidates. Maximal degree in co-relation 5569. Up to 516 conditions per place. [2025-02-08 08:44:24,190 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 128 selfloop transitions, 43 changer transitions 0/172 dead transitions. [2025-02-08 08:44:24,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 172 transitions, 2702 flow [2025-02-08 08:44:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:44:24,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:44:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 73 transitions. [2025-02-08 08:44:24,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333 [2025-02-08 08:44:24,191 INFO L175 Difference]: Start difference. First operand has 114 places, 121 transitions, 1808 flow. Second operand 5 states and 73 transitions. [2025-02-08 08:44:24,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 172 transitions, 2702 flow [2025-02-08 08:44:24,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 172 transitions, 2634 flow, removed 9 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:24,212 INFO L231 Difference]: Finished difference. Result has 117 places, 130 transitions, 2064 flow [2025-02-08 08:44:24,212 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1744, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2064, PETRI_PLACES=117, PETRI_TRANSITIONS=130} [2025-02-08 08:44:24,213 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 91 predicate places. [2025-02-08 08:44:24,213 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 130 transitions, 2064 flow [2025-02-08 08:44:24,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:24,213 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:24,213 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:24,226 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 08:44:24,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:24,414 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:24,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:24,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1618581021, now seen corresponding path program 3 times [2025-02-08 08:44:24,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:24,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068472689] [2025-02-08 08:44:24,415 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:24,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:24,419 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:24,422 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:24,422 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:24,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:24,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:24,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068472689] [2025-02-08 08:44:24,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068472689] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:24,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:24,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:44:24,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289902355] [2025-02-08 08:44:24,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:24,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:24,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:24,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:24,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:44:24,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:24,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 130 transitions, 2064 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:24,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:24,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:24,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:24,629 INFO L124 PetriNetUnfolderBase]: 536/971 cut-off events. [2025-02-08 08:44:24,629 INFO L125 PetriNetUnfolderBase]: For 12548/12548 co-relation queries the response was YES. [2025-02-08 08:44:24,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5992 conditions, 971 events. 536/971 cut-off events. For 12548/12548 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 4805 event pairs, 41 based on Foata normal form. 6/977 useless extension candidates. Maximal degree in co-relation 5621. Up to 357 conditions per place. [2025-02-08 08:44:24,635 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 126 selfloop transitions, 34 changer transitions 2/163 dead transitions. [2025-02-08 08:44:24,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 163 transitions, 2772 flow [2025-02-08 08:44:24,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:44:24,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:44:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 74 transitions. [2025-02-08 08:44:24,636 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2025-02-08 08:44:24,636 INFO L175 Difference]: Start difference. First operand has 117 places, 130 transitions, 2064 flow. Second operand 6 states and 74 transitions. [2025-02-08 08:44:24,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 163 transitions, 2772 flow [2025-02-08 08:44:24,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 163 transitions, 2718 flow, removed 22 selfloop flow, removed 2 redundant places. [2025-02-08 08:44:24,658 INFO L231 Difference]: Finished difference. Result has 121 places, 126 transitions, 2041 flow [2025-02-08 08:44:24,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1972, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2041, PETRI_PLACES=121, PETRI_TRANSITIONS=126} [2025-02-08 08:44:24,658 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 95 predicate places. [2025-02-08 08:44:24,659 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 126 transitions, 2041 flow [2025-02-08 08:44:24,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:24,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:24,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:24,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 08:44:24,659 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:24,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash 782799766, now seen corresponding path program 3 times [2025-02-08 08:44:24,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:24,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696362521] [2025-02-08 08:44:24,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:24,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:24,662 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:24,664 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:24,664 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:24,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:24,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:24,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696362521] [2025-02-08 08:44:24,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696362521] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:24,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:24,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:44:24,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301708918] [2025-02-08 08:44:24,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:24,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:24,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:24,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:44:24,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:24,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 126 transitions, 2041 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:24,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:24,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:24,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:24,830 INFO L124 PetriNetUnfolderBase]: 494/892 cut-off events. [2025-02-08 08:44:24,830 INFO L125 PetriNetUnfolderBase]: For 11639/11639 co-relation queries the response was YES. [2025-02-08 08:44:24,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5606 conditions, 892 events. 494/892 cut-off events. For 11639/11639 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4275 event pairs, 69 based on Foata normal form. 7/899 useless extension candidates. Maximal degree in co-relation 5290. Up to 235 conditions per place. [2025-02-08 08:44:24,835 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 125 selfloop transitions, 36 changer transitions 5/167 dead transitions. [2025-02-08 08:44:24,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 167 transitions, 2669 flow [2025-02-08 08:44:24,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:44:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:44:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 101 transitions. [2025-02-08 08:44:24,836 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5260416666666666 [2025-02-08 08:44:24,836 INFO L175 Difference]: Start difference. First operand has 121 places, 126 transitions, 2041 flow. Second operand 8 states and 101 transitions. [2025-02-08 08:44:24,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 167 transitions, 2669 flow [2025-02-08 08:44:24,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 167 transitions, 2621 flow, removed 14 selfloop flow, removed 3 redundant places. [2025-02-08 08:44:24,856 INFO L231 Difference]: Finished difference. Result has 123 places, 120 transitions, 1959 flow [2025-02-08 08:44:24,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1926, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1959, PETRI_PLACES=123, PETRI_TRANSITIONS=120} [2025-02-08 08:44:24,857 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 97 predicate places. [2025-02-08 08:44:24,857 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 120 transitions, 1959 flow [2025-02-08 08:44:24,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:24,857 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:24,857 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:24,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 08:44:24,858 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:24,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:24,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1725619950, now seen corresponding path program 4 times [2025-02-08 08:44:24,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:24,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017950547] [2025-02-08 08:44:24,858 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:24,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:24,860 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:24,862 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:24,862 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:24,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:24,882 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 08:44:24,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:24,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017950547] [2025-02-08 08:44:24,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017950547] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:24,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377145320] [2025-02-08 08:44:24,883 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:24,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:24,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:24,887 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 08:44:24,895 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 08:44:24,925 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:24,938 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:24,938 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:24,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:24,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:44:24,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:24,951 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 08:44:24,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:24,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:24,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377145320] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:24,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:44:24,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2025-02-08 08:44:24,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435913034] [2025-02-08 08:44:24,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:24,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:24,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:24,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:24,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:44:24,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:24,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 120 transitions, 1959 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:24,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:24,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:24,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:25,137 INFO L124 PetriNetUnfolderBase]: 468/849 cut-off events. [2025-02-08 08:44:25,137 INFO L125 PetriNetUnfolderBase]: For 11191/11191 co-relation queries the response was YES. [2025-02-08 08:44:25,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5349 conditions, 849 events. 468/849 cut-off events. For 11191/11191 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4012 event pairs, 45 based on Foata normal form. 8/857 useless extension candidates. Maximal degree in co-relation 4988. Up to 336 conditions per place. [2025-02-08 08:44:25,141 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 116 selfloop transitions, 35 changer transitions 1/153 dead transitions. [2025-02-08 08:44:25,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 153 transitions, 2549 flow [2025-02-08 08:44:25,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:44:25,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:44:25,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2025-02-08 08:44:25,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2025-02-08 08:44:25,142 INFO L175 Difference]: Start difference. First operand has 123 places, 120 transitions, 1959 flow. Second operand 5 states and 70 transitions. [2025-02-08 08:44:25,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 153 transitions, 2549 flow [2025-02-08 08:44:25,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 153 transitions, 2477 flow, removed 17 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:25,161 INFO L231 Difference]: Finished difference. Result has 122 places, 120 transitions, 1962 flow [2025-02-08 08:44:25,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1870, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1962, PETRI_PLACES=122, PETRI_TRANSITIONS=120} [2025-02-08 08:44:25,161 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 96 predicate places. [2025-02-08 08:44:25,161 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 120 transitions, 1962 flow [2025-02-08 08:44:25,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:25,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:25,161 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:25,167 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 08:44:25,362 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,SelfDestructingSolverStorable22 [2025-02-08 08:44:25,362 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:25,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:25,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1792854238, now seen corresponding path program 5 times [2025-02-08 08:44:25,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:25,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880881948] [2025-02-08 08:44:25,363 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:25,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:25,365 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:25,368 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:25,368 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:25,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:25,387 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 08:44:25,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:25,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880881948] [2025-02-08 08:44:25,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880881948] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:25,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917830068] [2025-02-08 08:44:25,387 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:25,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:25,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:25,389 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 08:44:25,390 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 08:44:25,416 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:25,424 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:25,424 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:25,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:25,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:44:25,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:25,435 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 08:44:25,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:25,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917830068] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:25,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:44:25,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 6 [2025-02-08 08:44:25,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693127765] [2025-02-08 08:44:25,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:25,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:25,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:25,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:25,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:44:25,458 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:25,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 120 transitions, 1962 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:25,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:25,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:25,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:25,566 INFO L124 PetriNetUnfolderBase]: 459/832 cut-off events. [2025-02-08 08:44:25,566 INFO L125 PetriNetUnfolderBase]: For 11738/11738 co-relation queries the response was YES. [2025-02-08 08:44:25,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5223 conditions, 832 events. 459/832 cut-off events. For 11738/11738 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3917 event pairs, 60 based on Foata normal form. 14/846 useless extension candidates. Maximal degree in co-relation 4877. Up to 437 conditions per place. [2025-02-08 08:44:25,571 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 97 selfloop transitions, 38 changer transitions 2/138 dead transitions. [2025-02-08 08:44:25,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 138 transitions, 2406 flow [2025-02-08 08:44:25,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:44:25,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:44:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 65 transitions. [2025-02-08 08:44:25,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2025-02-08 08:44:25,572 INFO L175 Difference]: Start difference. First operand has 122 places, 120 transitions, 1962 flow. Second operand 5 states and 65 transitions. [2025-02-08 08:44:25,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 138 transitions, 2406 flow [2025-02-08 08:44:25,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 138 transitions, 2374 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-08 08:44:25,591 INFO L231 Difference]: Finished difference. Result has 124 places, 114 transitions, 1962 flow [2025-02-08 08:44:25,591 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1962, PETRI_PLACES=124, PETRI_TRANSITIONS=114} [2025-02-08 08:44:25,591 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 98 predicate places. [2025-02-08 08:44:25,591 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 114 transitions, 1962 flow [2025-02-08 08:44:25,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:25,591 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:25,592 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:25,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:25,792 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,SelfDestructingSolverStorable23 [2025-02-08 08:44:25,792 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:25,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:25,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1812238301, now seen corresponding path program 4 times [2025-02-08 08:44:25,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:25,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755899507] [2025-02-08 08:44:25,793 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:25,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:25,795 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:25,799 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:25,799 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:25,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:25,819 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 08:44:25,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:25,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755899507] [2025-02-08 08:44:25,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755899507] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:25,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109035886] [2025-02-08 08:44:25,819 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:25,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:25,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:25,825 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 08:44:25,826 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 08:44:25,847 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:25,855 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:25,855 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:25,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:25,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:44:25,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:25,866 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 08:44:25,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:25,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109035886] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:25,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-08 08:44:25,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2025-02-08 08:44:25,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264401547] [2025-02-08 08:44:25,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:25,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:25,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:25,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:25,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:44:25,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:25,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 114 transitions, 1962 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:25,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:25,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:25,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:26,010 INFO L124 PetriNetUnfolderBase]: 415/752 cut-off events. [2025-02-08 08:44:26,010 INFO L125 PetriNetUnfolderBase]: For 11647/11647 co-relation queries the response was YES. [2025-02-08 08:44:26,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4940 conditions, 752 events. 415/752 cut-off events. For 11647/11647 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3460 event pairs, 98 based on Foata normal form. 9/761 useless extension candidates. Maximal degree in co-relation 4721. Up to 406 conditions per place. [2025-02-08 08:44:26,015 INFO L140 encePairwiseOnDemand]: 17/24 looper letters, 107 selfloop transitions, 42 changer transitions 0/150 dead transitions. [2025-02-08 08:44:26,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 150 transitions, 2527 flow [2025-02-08 08:44:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:44:26,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:44:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2025-02-08 08:44:26,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2025-02-08 08:44:26,016 INFO L175 Difference]: Start difference. First operand has 124 places, 114 transitions, 1962 flow. Second operand 6 states and 88 transitions. [2025-02-08 08:44:26,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 150 transitions, 2527 flow [2025-02-08 08:44:26,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 150 transitions, 2480 flow, removed 17 selfloop flow, removed 3 redundant places. [2025-02-08 08:44:26,034 INFO L231 Difference]: Finished difference. Result has 127 places, 117 transitions, 2104 flow [2025-02-08 08:44:26,034 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2104, PETRI_PLACES=127, PETRI_TRANSITIONS=117} [2025-02-08 08:44:26,034 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 101 predicate places. [2025-02-08 08:44:26,034 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 117 transitions, 2104 flow [2025-02-08 08:44:26,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:26,034 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:26,041 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 08:44:26,235 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,SelfDestructingSolverStorable24 [2025-02-08 08:44:26,235 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:26,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1166788390, now seen corresponding path program 6 times [2025-02-08 08:44:26,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:26,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23180263] [2025-02-08 08:44:26,236 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:26,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:26,238 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:26,240 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:26,240 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:26,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:26,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:26,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23180263] [2025-02-08 08:44:26,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23180263] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:26,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:26,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:44:26,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009824606] [2025-02-08 08:44:26,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:26,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:26,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:26,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:26,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:44:26,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:26,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 117 transitions, 2104 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:26,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:26,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:26,370 INFO L124 PetriNetUnfolderBase]: 361/657 cut-off events. [2025-02-08 08:44:26,370 INFO L125 PetriNetUnfolderBase]: For 10445/10445 co-relation queries the response was YES. [2025-02-08 08:44:26,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4490 conditions, 657 events. 361/657 cut-off events. For 10445/10445 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2893 event pairs, 30 based on Foata normal form. 7/664 useless extension candidates. Maximal degree in co-relation 4288. Up to 254 conditions per place. [2025-02-08 08:44:26,377 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 106 selfloop transitions, 27 changer transitions 2/136 dead transitions. [2025-02-08 08:44:26,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 136 transitions, 2503 flow [2025-02-08 08:44:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:44:26,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:44:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2025-02-08 08:44:26,378 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-08 08:44:26,378 INFO L175 Difference]: Start difference. First operand has 127 places, 117 transitions, 2104 flow. Second operand 6 states and 72 transitions. [2025-02-08 08:44:26,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 136 transitions, 2503 flow [2025-02-08 08:44:26,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 136 transitions, 2357 flow, removed 30 selfloop flow, removed 6 redundant places. [2025-02-08 08:44:26,394 INFO L231 Difference]: Finished difference. Result has 125 places, 107 transitions, 1842 flow [2025-02-08 08:44:26,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1834, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1842, PETRI_PLACES=125, PETRI_TRANSITIONS=107} [2025-02-08 08:44:26,395 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 99 predicate places. [2025-02-08 08:44:26,395 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 107 transitions, 1842 flow [2025-02-08 08:44:26,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:26,396 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:26,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-08 08:44:26,396 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:26,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:26,397 INFO L85 PathProgramCache]: Analyzing trace with hash 789187399, now seen corresponding path program 5 times [2025-02-08 08:44:26,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:26,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679348326] [2025-02-08 08:44:26,397 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:26,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:26,399 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:26,402 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:26,402 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:26,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679348326] [2025-02-08 08:44:26,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679348326] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:26,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:26,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:44:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586216300] [2025-02-08 08:44:26,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:26,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:26,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:26,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:26,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:44:26,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:26,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 107 transitions, 1842 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:26,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:26,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:26,557 INFO L124 PetriNetUnfolderBase]: 352/641 cut-off events. [2025-02-08 08:44:26,557 INFO L125 PetriNetUnfolderBase]: For 8676/8676 co-relation queries the response was YES. [2025-02-08 08:44:26,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4182 conditions, 641 events. 352/641 cut-off events. For 8676/8676 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2838 event pairs, 62 based on Foata normal form. 6/647 useless extension candidates. Maximal degree in co-relation 3987. Up to 192 conditions per place. [2025-02-08 08:44:26,561 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 102 selfloop transitions, 35 changer transitions 2/140 dead transitions. [2025-02-08 08:44:26,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 140 transitions, 2333 flow [2025-02-08 08:44:26,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:44:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:44:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 98 transitions. [2025-02-08 08:44:26,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2025-02-08 08:44:26,562 INFO L175 Difference]: Start difference. First operand has 125 places, 107 transitions, 1842 flow. Second operand 8 states and 98 transitions. [2025-02-08 08:44:26,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 140 transitions, 2333 flow [2025-02-08 08:44:26,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 140 transitions, 2192 flow, removed 12 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:26,575 INFO L231 Difference]: Finished difference. Result has 122 places, 103 transitions, 1710 flow [2025-02-08 08:44:26,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1681, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1710, PETRI_PLACES=122, PETRI_TRANSITIONS=103} [2025-02-08 08:44:26,576 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 96 predicate places. [2025-02-08 08:44:26,576 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 103 transitions, 1710 flow [2025-02-08 08:44:26,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:26,576 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:26,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-08 08:44:26,576 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:26,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1822545029, now seen corresponding path program 6 times [2025-02-08 08:44:26,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:26,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580709522] [2025-02-08 08:44:26,577 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:26,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:26,580 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 18 statements into 2 equivalence classes. [2025-02-08 08:44:26,584 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:44:26,584 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:26,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:26,608 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:26,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:26,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580709522] [2025-02-08 08:44:26,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580709522] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:26,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:44:26,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:44:26,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156860526] [2025-02-08 08:44:26,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:26,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:44:26,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:26,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:44:26,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:44:26,611 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:26,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 103 transitions, 1710 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:26,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:26,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:26,701 INFO L124 PetriNetUnfolderBase]: 309/562 cut-off events. [2025-02-08 08:44:26,701 INFO L125 PetriNetUnfolderBase]: For 7342/7342 co-relation queries the response was YES. [2025-02-08 08:44:26,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3710 conditions, 562 events. 309/562 cut-off events. For 7342/7342 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2386 event pairs, 68 based on Foata normal form. 10/572 useless extension candidates. Maximal degree in co-relation 3553. Up to 248 conditions per place. [2025-02-08 08:44:26,704 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 69 selfloop transitions, 30 changer transitions 9/109 dead transitions. [2025-02-08 08:44:26,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 109 transitions, 1897 flow [2025-02-08 08:44:26,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:44:26,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:44:26,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 73 transitions. [2025-02-08 08:44:26,705 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2025-02-08 08:44:26,705 INFO L175 Difference]: Start difference. First operand has 122 places, 103 transitions, 1710 flow. Second operand 7 states and 73 transitions. [2025-02-08 08:44:26,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 109 transitions, 1897 flow [2025-02-08 08:44:26,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 109 transitions, 1765 flow, removed 21 selfloop flow, removed 6 redundant places. [2025-02-08 08:44:26,716 INFO L231 Difference]: Finished difference. Result has 120 places, 90 transitions, 1420 flow [2025-02-08 08:44:26,716 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1420, PETRI_PLACES=120, PETRI_TRANSITIONS=90} [2025-02-08 08:44:26,716 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 94 predicate places. [2025-02-08 08:44:26,719 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 90 transitions, 1420 flow [2025-02-08 08:44:26,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 08:44:26,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:26,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:26,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-08 08:44:26,720 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:26,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:26,720 INFO L85 PathProgramCache]: Analyzing trace with hash -2018732822, now seen corresponding path program 1 times [2025-02-08 08:44:26,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:26,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758440758] [2025-02-08 08:44:26,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:44:26,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:26,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:26,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:26,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:26,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:26,803 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 08:44:26,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:26,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758440758] [2025-02-08 08:44:26,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758440758] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:26,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659263280] [2025-02-08 08:44:26,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:44:26,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:26,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:26,806 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 08:44:26,810 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 08:44:26,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:26,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:26,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:26,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:26,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:26,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:26,954 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 08:44:26,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:27,208 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 08:44:27,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659263280] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:27,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:27,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:27,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878196970] [2025-02-08 08:44:27,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:27,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:27,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:27,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:27,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:27,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:27,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 90 transitions, 1420 flow. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 08:44:27,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:27,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:27,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:28,265 INFO L124 PetriNetUnfolderBase]: 694/1300 cut-off events. [2025-02-08 08:44:28,265 INFO L125 PetriNetUnfolderBase]: For 12514/12514 co-relation queries the response was YES. [2025-02-08 08:44:28,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7082 conditions, 1300 events. 694/1300 cut-off events. For 12514/12514 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 6975 event pairs, 39 based on Foata normal form. 2/1302 useless extension candidates. Maximal degree in co-relation 6958. Up to 242 conditions per place. [2025-02-08 08:44:28,275 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 129 selfloop transitions, 87 changer transitions 68/285 dead transitions. [2025-02-08 08:44:28,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 285 transitions, 3826 flow [2025-02-08 08:44:28,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2025-02-08 08:44:28,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2025-02-08 08:44:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 346 transitions. [2025-02-08 08:44:28,277 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40046296296296297 [2025-02-08 08:44:28,277 INFO L175 Difference]: Start difference. First operand has 120 places, 90 transitions, 1420 flow. Second operand 36 states and 346 transitions. [2025-02-08 08:44:28,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 285 transitions, 3826 flow [2025-02-08 08:44:28,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 285 transitions, 3591 flow, removed 34 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:28,293 INFO L231 Difference]: Finished difference. Result has 158 places, 129 transitions, 2224 flow [2025-02-08 08:44:28,293 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2224, PETRI_PLACES=158, PETRI_TRANSITIONS=129} [2025-02-08 08:44:28,295 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 132 predicate places. [2025-02-08 08:44:28,295 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 129 transitions, 2224 flow [2025-02-08 08:44:28,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 08:44:28,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:28,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:28,301 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 08:44:28,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:28,500 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:28,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:28,501 INFO L85 PathProgramCache]: Analyzing trace with hash 792369760, now seen corresponding path program 2 times [2025-02-08 08:44:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:28,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901580916] [2025-02-08 08:44:28,501 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:28,504 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:28,505 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:28,505 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:28,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:28,582 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 08:44:28,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:28,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901580916] [2025-02-08 08:44:28,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901580916] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:28,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642293133] [2025-02-08 08:44:28,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:28,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:28,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:28,587 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 08:44:28,588 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 08:44:28,611 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:28,619 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:28,620 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:28,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:28,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:28,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:28,712 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 08:44:28,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:28,864 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 08:44:28,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642293133] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:28,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:28,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:28,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286887307] [2025-02-08 08:44:28,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:28,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:28,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:28,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:28,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:28,872 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:28,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 129 transitions, 2224 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:28,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:28,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:28,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:29,308 INFO L124 PetriNetUnfolderBase]: 751/1463 cut-off events. [2025-02-08 08:44:29,308 INFO L125 PetriNetUnfolderBase]: For 15256/15256 co-relation queries the response was YES. [2025-02-08 08:44:29,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8030 conditions, 1463 events. 751/1463 cut-off events. For 15256/15256 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 8396 event pairs, 98 based on Foata normal form. 3/1466 useless extension candidates. Maximal degree in co-relation 7895. Up to 594 conditions per place. [2025-02-08 08:44:29,316 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 102 selfloop transitions, 99 changer transitions 12/214 dead transitions. [2025-02-08 08:44:29,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 214 transitions, 3635 flow [2025-02-08 08:44:29,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:44:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:44:29,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 134 transitions. [2025-02-08 08:44:29,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42948717948717946 [2025-02-08 08:44:29,316 INFO L175 Difference]: Start difference. First operand has 158 places, 129 transitions, 2224 flow. Second operand 13 states and 134 transitions. [2025-02-08 08:44:29,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 214 transitions, 3635 flow [2025-02-08 08:44:29,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 214 transitions, 2891 flow, removed 188 selfloop flow, removed 20 redundant places. [2025-02-08 08:44:29,346 INFO L231 Difference]: Finished difference. Result has 144 places, 161 transitions, 2345 flow [2025-02-08 08:44:29,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1701, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2345, PETRI_PLACES=144, PETRI_TRANSITIONS=161} [2025-02-08 08:44:29,346 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 118 predicate places. [2025-02-08 08:44:29,346 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 161 transitions, 2345 flow [2025-02-08 08:44:29,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:29,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:29,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:29,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:29,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:29,551 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:29,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:29,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1268178712, now seen corresponding path program 3 times [2025-02-08 08:44:29,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:29,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762426533] [2025-02-08 08:44:29,552 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:29,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:29,555 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:29,556 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:29,556 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:29,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:29,645 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 08:44:29,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:29,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762426533] [2025-02-08 08:44:29,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762426533] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:29,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092816844] [2025-02-08 08:44:29,646 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:29,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:29,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:29,648 INFO L229 MonitoredProcess]: Starting monitored process 10 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 08:44:29,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 08:44:29,670 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:29,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:29,678 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:29,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:29,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:29,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:29,770 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 08:44:29,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:29,907 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 08:44:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092816844] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:29,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:29,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:29,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609638580] [2025-02-08 08:44:29,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:29,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:29,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:29,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:29,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:29,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:29,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 161 transitions, 2345 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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 08:44:29,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:29,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:29,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:30,400 INFO L124 PetriNetUnfolderBase]: 896/1776 cut-off events. [2025-02-08 08:44:30,400 INFO L125 PetriNetUnfolderBase]: For 14306/14306 co-relation queries the response was YES. [2025-02-08 08:44:30,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8767 conditions, 1776 events. 896/1776 cut-off events. For 14306/14306 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 10987 event pairs, 110 based on Foata normal form. 4/1780 useless extension candidates. Maximal degree in co-relation 8646. Up to 556 conditions per place. [2025-02-08 08:44:30,409 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 86 selfloop transitions, 153 changer transitions 12/252 dead transitions. [2025-02-08 08:44:30,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 252 transitions, 3849 flow [2025-02-08 08:44:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 08:44:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 08:44:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 164 transitions. [2025-02-08 08:44:30,410 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2025-02-08 08:44:30,410 INFO L175 Difference]: Start difference. First operand has 144 places, 161 transitions, 2345 flow. Second operand 17 states and 164 transitions. [2025-02-08 08:44:30,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 252 transitions, 3849 flow [2025-02-08 08:44:30,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 252 transitions, 3712 flow, removed 35 selfloop flow, removed 5 redundant places. [2025-02-08 08:44:30,441 INFO L231 Difference]: Finished difference. Result has 161 places, 205 transitions, 3378 flow [2025-02-08 08:44:30,441 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2248, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=111, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3378, PETRI_PLACES=161, PETRI_TRANSITIONS=205} [2025-02-08 08:44:30,441 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 135 predicate places. [2025-02-08 08:44:30,442 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 205 transitions, 3378 flow [2025-02-08 08:44:30,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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 08:44:30,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:30,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:30,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:30,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:30,646 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:30,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:30,646 INFO L85 PathProgramCache]: Analyzing trace with hash -718630428, now seen corresponding path program 4 times [2025-02-08 08:44:30,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:30,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301528712] [2025-02-08 08:44:30,646 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:30,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:30,650 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:30,654 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:30,654 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:30,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:30,799 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 08:44:30,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:30,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301528712] [2025-02-08 08:44:30,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301528712] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:30,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399596232] [2025-02-08 08:44:30,800 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:30,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:30,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:30,804 INFO L229 MonitoredProcess]: Starting monitored process 11 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 08:44:30,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 08:44:30,826 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:30,834 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:30,835 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:30,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:30,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:30,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:30,961 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 08:44:30,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:31,134 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 08:44:31,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399596232] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:31,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:31,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2025-02-08 08:44:31,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478319431] [2025-02-08 08:44:31,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:31,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:44:31,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:31,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:44:31,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2025-02-08 08:44:31,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:31,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 205 transitions, 3378 flow. Second operand has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 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 08:44:31,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:31,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:31,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:31,741 INFO L124 PetriNetUnfolderBase]: 874/1728 cut-off events. [2025-02-08 08:44:31,741 INFO L125 PetriNetUnfolderBase]: For 17106/17106 co-relation queries the response was YES. [2025-02-08 08:44:31,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9515 conditions, 1728 events. 874/1728 cut-off events. For 17106/17106 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 10552 event pairs, 92 based on Foata normal form. 4/1732 useless extension candidates. Maximal degree in co-relation 9386. Up to 600 conditions per place. [2025-02-08 08:44:31,750 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 88 selfloop transitions, 146 changer transitions 17/252 dead transitions. [2025-02-08 08:44:31,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 252 transitions, 4216 flow [2025-02-08 08:44:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-08 08:44:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-02-08 08:44:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 164 transitions. [2025-02-08 08:44:31,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4019607843137255 [2025-02-08 08:44:31,754 INFO L175 Difference]: Start difference. First operand has 161 places, 205 transitions, 3378 flow. Second operand 17 states and 164 transitions. [2025-02-08 08:44:31,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 252 transitions, 4216 flow [2025-02-08 08:44:31,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 252 transitions, 4001 flow, removed 87 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:31,801 INFO L231 Difference]: Finished difference. Result has 174 places, 202 transitions, 3412 flow [2025-02-08 08:44:31,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3171, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3412, PETRI_PLACES=174, PETRI_TRANSITIONS=202} [2025-02-08 08:44:31,802 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 148 predicate places. [2025-02-08 08:44:31,802 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 202 transitions, 3412 flow [2025-02-08 08:44:31,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.5) internal successors, (132), 24 states have internal predecessors, (132), 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 08:44:31,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:31,803 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:31,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:32,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:32,004 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:32,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2007553764, now seen corresponding path program 5 times [2025-02-08 08:44:32,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:32,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334703125] [2025-02-08 08:44:32,004 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:32,007 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:32,008 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:32,008 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:32,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:32,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:32,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:32,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334703125] [2025-02-08 08:44:32,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334703125] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:32,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129839830] [2025-02-08 08:44:32,068 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:32,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:32,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:32,070 INFO L229 MonitoredProcess]: Starting monitored process 12 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 08:44:32,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 08:44:32,092 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:32,101 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:32,101 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:32,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:32,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 08:44:32,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:32,159 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:44:32,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129839830] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:32,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:44:32,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2025-02-08 08:44:32,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038394175] [2025-02-08 08:44:32,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:32,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:32,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:32,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:32,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-02-08 08:44:32,168 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:32,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 202 transitions, 3412 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:32,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:32,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:32,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:32,362 INFO L124 PetriNetUnfolderBase]: 802/1568 cut-off events. [2025-02-08 08:44:32,362 INFO L125 PetriNetUnfolderBase]: For 17242/17242 co-relation queries the response was YES. [2025-02-08 08:44:32,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9169 conditions, 1568 events. 802/1568 cut-off events. For 17242/17242 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 9157 event pairs, 160 based on Foata normal form. 2/1570 useless extension candidates. Maximal degree in co-relation 9056. Up to 998 conditions per place. [2025-02-08 08:44:32,369 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 124 selfloop transitions, 63 changer transitions 45/233 dead transitions. [2025-02-08 08:44:32,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 233 transitions, 4213 flow [2025-02-08 08:44:32,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:32,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:32,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 92 transitions. [2025-02-08 08:44:32,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2025-02-08 08:44:32,371 INFO L175 Difference]: Start difference. First operand has 174 places, 202 transitions, 3412 flow. Second operand 9 states and 92 transitions. [2025-02-08 08:44:32,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 233 transitions, 4213 flow [2025-02-08 08:44:32,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 233 transitions, 3943 flow, removed 12 selfloop flow, removed 14 redundant places. [2025-02-08 08:44:32,407 INFO L231 Difference]: Finished difference. Result has 168 places, 175 transitions, 2788 flow [2025-02-08 08:44:32,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3166, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2788, PETRI_PLACES=168, PETRI_TRANSITIONS=175} [2025-02-08 08:44:32,408 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 142 predicate places. [2025-02-08 08:44:32,408 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 175 transitions, 2788 flow [2025-02-08 08:44:32,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:32,408 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:32,408 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:32,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:32,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-02-08 08:44:32,609 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:32,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:32,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2096100490, now seen corresponding path program 6 times [2025-02-08 08:44:32,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:32,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075485793] [2025-02-08 08:44:32,610 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:32,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:32,612 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:32,614 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:32,614 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:32,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:32,698 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 08:44:32,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075485793] [2025-02-08 08:44:32,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075485793] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:32,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936835045] [2025-02-08 08:44:32,699 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:32,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:32,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:32,703 INFO L229 MonitoredProcess]: Starting monitored process 13 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 08:44:32,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 08:44:32,731 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:32,739 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:32,739 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:32,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:32,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:32,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:32,862 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 08:44:32,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:33,053 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 08:44:33,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936835045] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:33,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:33,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:33,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791389212] [2025-02-08 08:44:33,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:33,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:33,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:33,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:33,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:33,072 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:33,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 175 transitions, 2788 flow. Second operand has 23 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 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 08:44:33,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:33,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:33,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:33,442 INFO L124 PetriNetUnfolderBase]: 758/1518 cut-off events. [2025-02-08 08:44:33,443 INFO L125 PetriNetUnfolderBase]: For 14477/14477 co-relation queries the response was YES. [2025-02-08 08:44:33,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8016 conditions, 1518 events. 758/1518 cut-off events. For 14477/14477 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 9063 event pairs, 131 based on Foata normal form. 4/1522 useless extension candidates. Maximal degree in co-relation 7882. Up to 776 conditions per place. [2025-02-08 08:44:33,449 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 91 selfloop transitions, 101 changer transitions 23/216 dead transitions. [2025-02-08 08:44:33,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 216 transitions, 3579 flow [2025-02-08 08:44:33,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:44:33,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:44:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 124 transitions. [2025-02-08 08:44:33,451 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4305555555555556 [2025-02-08 08:44:33,451 INFO L175 Difference]: Start difference. First operand has 168 places, 175 transitions, 2788 flow. Second operand 12 states and 124 transitions. [2025-02-08 08:44:33,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 216 transitions, 3579 flow [2025-02-08 08:44:33,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 216 transitions, 3232 flow, removed 22 selfloop flow, removed 17 redundant places. [2025-02-08 08:44:33,481 INFO L231 Difference]: Finished difference. Result has 154 places, 163 transitions, 2577 flow [2025-02-08 08:44:33,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2467, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2577, PETRI_PLACES=154, PETRI_TRANSITIONS=163} [2025-02-08 08:44:33,481 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 128 predicate places. [2025-02-08 08:44:33,481 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 163 transitions, 2577 flow [2025-02-08 08:44:33,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.565217391304348) internal successors, (128), 23 states have internal predecessors, (128), 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 08:44:33,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:33,482 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:33,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 08:44:33,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:33,682 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:33,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:33,683 INFO L85 PathProgramCache]: Analyzing trace with hash -146307082, now seen corresponding path program 7 times [2025-02-08 08:44:33,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:33,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138782501] [2025-02-08 08:44:33,683 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:33,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:33,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:33,686 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:33,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:33,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:33,809 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 08:44:33,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:33,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138782501] [2025-02-08 08:44:33,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138782501] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:33,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244342477] [2025-02-08 08:44:33,810 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:33,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:33,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:33,814 INFO L229 MonitoredProcess]: Starting monitored process 14 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 08:44:33,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 08:44:33,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:33,843 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:33,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:33,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:33,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:33,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:33,994 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 08:44:33,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:34,216 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 08:44:34,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244342477] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:34,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:34,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:34,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029245060] [2025-02-08 08:44:34,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:34,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:34,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:34,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:34,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:34,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 163 transitions, 2577 flow. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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 08:44:34,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:34,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:34,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:34,687 INFO L124 PetriNetUnfolderBase]: 731/1460 cut-off events. [2025-02-08 08:44:34,687 INFO L125 PetriNetUnfolderBase]: For 12261/12261 co-relation queries the response was YES. [2025-02-08 08:44:34,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7756 conditions, 1460 events. 731/1460 cut-off events. For 12261/12261 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 8613 event pairs, 134 based on Foata normal form. 5/1465 useless extension candidates. Maximal degree in co-relation 7631. Up to 816 conditions per place. [2025-02-08 08:44:34,693 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 84 selfloop transitions, 85 changer transitions 26/196 dead transitions. [2025-02-08 08:44:34,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 196 transitions, 3260 flow [2025-02-08 08:44:34,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:44:34,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:44:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 116 transitions. [2025-02-08 08:44:34,693 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2025-02-08 08:44:34,693 INFO L175 Difference]: Start difference. First operand has 154 places, 163 transitions, 2577 flow. Second operand 12 states and 116 transitions. [2025-02-08 08:44:34,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 196 transitions, 3260 flow [2025-02-08 08:44:34,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 196 transitions, 3186 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-08 08:44:34,718 INFO L231 Difference]: Finished difference. Result has 158 places, 148 transitions, 2411 flow [2025-02-08 08:44:34,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2503, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2411, PETRI_PLACES=158, PETRI_TRANSITIONS=148} [2025-02-08 08:44:34,718 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 132 predicate places. [2025-02-08 08:44:34,718 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 148 transitions, 2411 flow [2025-02-08 08:44:34,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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 08:44:34,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:34,719 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:34,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 08:44:34,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:34,919 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:34,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:34,920 INFO L85 PathProgramCache]: Analyzing trace with hash -117558368, now seen corresponding path program 8 times [2025-02-08 08:44:34,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:34,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660032585] [2025-02-08 08:44:34,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:34,922 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:34,923 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:34,923 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:34,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:34,992 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 08:44:34,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660032585] [2025-02-08 08:44:34,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660032585] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:34,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288908028] [2025-02-08 08:44:34,993 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:34,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:34,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:34,995 INFO L229 MonitoredProcess]: Starting monitored process 15 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 08:44:34,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 08:44:35,018 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:35,026 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:35,026 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:35,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:35,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:35,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:35,109 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 08:44:35,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:35,267 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 08:44:35,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288908028] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:35,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:35,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:35,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245131080] [2025-02-08 08:44:35,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:35,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:35,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:35,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:35,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:35,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:35,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 148 transitions, 2411 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:35,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:35,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:35,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:35,583 INFO L124 PetriNetUnfolderBase]: 650/1262 cut-off events. [2025-02-08 08:44:35,583 INFO L125 PetriNetUnfolderBase]: For 11742/11742 co-relation queries the response was YES. [2025-02-08 08:44:35,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7154 conditions, 1262 events. 650/1262 cut-off events. For 11742/11742 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 6961 event pairs, 66 based on Foata normal form. 7/1269 useless extension candidates. Maximal degree in co-relation 7057. Up to 451 conditions per place. [2025-02-08 08:44:35,590 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 75 selfloop transitions, 62 changer transitions 51/189 dead transitions. [2025-02-08 08:44:35,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 189 transitions, 3138 flow [2025-02-08 08:44:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:44:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:44:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 124 transitions. [2025-02-08 08:44:35,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3974358974358974 [2025-02-08 08:44:35,591 INFO L175 Difference]: Start difference. First operand has 158 places, 148 transitions, 2411 flow. Second operand 13 states and 124 transitions. [2025-02-08 08:44:35,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 189 transitions, 3138 flow [2025-02-08 08:44:35,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 189 transitions, 2893 flow, removed 1 selfloop flow, removed 11 redundant places. [2025-02-08 08:44:35,615 INFO L231 Difference]: Finished difference. Result has 154 places, 116 transitions, 1777 flow [2025-02-08 08:44:35,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2169, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1777, PETRI_PLACES=154, PETRI_TRANSITIONS=116} [2025-02-08 08:44:35,616 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 128 predicate places. [2025-02-08 08:44:35,616 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 116 transitions, 1777 flow [2025-02-08 08:44:35,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:35,616 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:35,616 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:35,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-08 08:44:35,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-02-08 08:44:35,820 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:35,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1019981224, now seen corresponding path program 9 times [2025-02-08 08:44:35,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:35,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539758593] [2025-02-08 08:44:35,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:35,823 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:35,824 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:35,824 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:35,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:35,943 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 08:44:35,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:35,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539758593] [2025-02-08 08:44:35,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539758593] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:35,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756582308] [2025-02-08 08:44:35,944 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:35,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:35,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:35,946 INFO L229 MonitoredProcess]: Starting monitored process 16 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 08:44:35,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 08:44:35,977 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:35,985 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:35,985 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:35,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:35,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:35,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:36,082 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 08:44:36,082 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:36,274 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 08:44:36,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756582308] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:36,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:36,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-02-08 08:44:36,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957670247] [2025-02-08 08:44:36,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:36,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 08:44:36,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:36,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 08:44:36,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:44:36,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:36,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 116 transitions, 1777 flow. Second operand has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 states have internal predecessors, (115), 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 08:44:36,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:36,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:36,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:36,896 INFO L124 PetriNetUnfolderBase]: 761/1529 cut-off events. [2025-02-08 08:44:36,897 INFO L125 PetriNetUnfolderBase]: For 12853/12853 co-relation queries the response was YES. [2025-02-08 08:44:36,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8230 conditions, 1529 events. 761/1529 cut-off events. For 12853/12853 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 9172 event pairs, 46 based on Foata normal form. 14/1543 useless extension candidates. Maximal degree in co-relation 8149. Up to 379 conditions per place. [2025-02-08 08:44:36,904 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 89 selfloop transitions, 145 changer transitions 17/252 dead transitions. [2025-02-08 08:44:36,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 252 transitions, 3977 flow [2025-02-08 08:44:36,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-08 08:44:36,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-08 08:44:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 211 transitions. [2025-02-08 08:44:36,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3996212121212121 [2025-02-08 08:44:36,905 INFO L175 Difference]: Start difference. First operand has 154 places, 116 transitions, 1777 flow. Second operand 22 states and 211 transitions. [2025-02-08 08:44:36,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 252 transitions, 3977 flow [2025-02-08 08:44:36,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 252 transitions, 3634 flow, removed 21 selfloop flow, removed 19 redundant places. [2025-02-08 08:44:36,930 INFO L231 Difference]: Finished difference. Result has 159 places, 190 transitions, 3212 flow [2025-02-08 08:44:36,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1589, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3212, PETRI_PLACES=159, PETRI_TRANSITIONS=190} [2025-02-08 08:44:36,930 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 133 predicate places. [2025-02-08 08:44:36,930 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 190 transitions, 3212 flow [2025-02-08 08:44:36,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.476190476190476) internal successors, (115), 21 states have internal predecessors, (115), 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 08:44:36,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:36,931 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:36,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:37,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-02-08 08:44:37,131 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:37,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:37,132 INFO L85 PathProgramCache]: Analyzing trace with hash 60142384, now seen corresponding path program 10 times [2025-02-08 08:44:37,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:37,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466687019] [2025-02-08 08:44:37,132 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:37,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:37,134 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:37,136 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:37,136 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:37,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:37,214 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 08:44:37,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:37,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466687019] [2025-02-08 08:44:37,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466687019] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:37,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087079189] [2025-02-08 08:44:37,214 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:37,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:37,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:37,216 INFO L229 MonitoredProcess]: Starting monitored process 17 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 08:44:37,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 08:44:37,239 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:37,247 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:37,247 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:37,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:37,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:37,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:37,350 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 08:44:37,351 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:37,528 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 08:44:37,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087079189] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:37,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:37,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:37,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129406229] [2025-02-08 08:44:37,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:37,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:37,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:37,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:37,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:37,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:37,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 190 transitions, 3212 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:37,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:37,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:37,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:38,040 INFO L124 PetriNetUnfolderBase]: 1000/2002 cut-off events. [2025-02-08 08:44:38,040 INFO L125 PetriNetUnfolderBase]: For 18858/18858 co-relation queries the response was YES. [2025-02-08 08:44:38,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11520 conditions, 2002 events. 1000/2002 cut-off events. For 18858/18858 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 12837 event pairs, 128 based on Foata normal form. 7/2009 useless extension candidates. Maximal degree in co-relation 11384. Up to 924 conditions per place. [2025-02-08 08:44:38,054 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 134 selfloop transitions, 144 changer transitions 29/308 dead transitions. [2025-02-08 08:44:38,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 308 transitions, 5513 flow [2025-02-08 08:44:38,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-08 08:44:38,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-08 08:44:38,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 172 transitions. [2025-02-08 08:44:38,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39814814814814814 [2025-02-08 08:44:38,058 INFO L175 Difference]: Start difference. First operand has 159 places, 190 transitions, 3212 flow. Second operand 18 states and 172 transitions. [2025-02-08 08:44:38,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 308 transitions, 5513 flow [2025-02-08 08:44:38,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 308 transitions, 5053 flow, removed 190 selfloop flow, removed 8 redundant places. [2025-02-08 08:44:38,120 INFO L231 Difference]: Finished difference. Result has 172 places, 225 transitions, 3965 flow [2025-02-08 08:44:38,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2935, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3965, PETRI_PLACES=172, PETRI_TRANSITIONS=225} [2025-02-08 08:44:38,120 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 146 predicate places. [2025-02-08 08:44:38,121 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 225 transitions, 3965 flow [2025-02-08 08:44:38,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:38,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:38,125 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:38,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-08 08:44:38,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:38,325 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:38,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:38,327 INFO L85 PathProgramCache]: Analyzing trace with hash 410388878, now seen corresponding path program 11 times [2025-02-08 08:44:38,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:38,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808730262] [2025-02-08 08:44:38,327 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:38,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:38,329 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:38,334 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:38,334 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:38,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:38,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:38,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:38,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808730262] [2025-02-08 08:44:38,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808730262] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:38,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410396250] [2025-02-08 08:44:38,395 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:38,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:38,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:38,398 INFO L229 MonitoredProcess]: Starting monitored process 18 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 08:44:38,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 08:44:38,422 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:38,429 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:38,429 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:38,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:38,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 08:44:38,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:38,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:44:38,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410396250] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:38,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:44:38,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2025-02-08 08:44:38,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929842267] [2025-02-08 08:44:38,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:38,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:38,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:38,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:38,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:44:38,490 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:38,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 225 transitions, 3965 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:38,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:38,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:38,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:38,748 INFO L124 PetriNetUnfolderBase]: 933/1855 cut-off events. [2025-02-08 08:44:38,748 INFO L125 PetriNetUnfolderBase]: For 20028/20028 co-relation queries the response was YES. [2025-02-08 08:44:38,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11017 conditions, 1855 events. 933/1855 cut-off events. For 20028/20028 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 11541 event pairs, 165 based on Foata normal form. 4/1859 useless extension candidates. Maximal degree in co-relation 10885. Up to 1085 conditions per place. [2025-02-08 08:44:38,757 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 129 selfloop transitions, 72 changer transitions 49/251 dead transitions. [2025-02-08 08:44:38,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 251 transitions, 4686 flow [2025-02-08 08:44:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:38,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 91 transitions. [2025-02-08 08:44:38,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2025-02-08 08:44:38,758 INFO L175 Difference]: Start difference. First operand has 172 places, 225 transitions, 3965 flow. Second operand 9 states and 91 transitions. [2025-02-08 08:44:38,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 251 transitions, 4686 flow [2025-02-08 08:44:38,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 251 transitions, 4584 flow, removed 21 selfloop flow, removed 9 redundant places. [2025-02-08 08:44:38,810 INFO L231 Difference]: Finished difference. Result has 172 places, 189 transitions, 3329 flow [2025-02-08 08:44:38,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3869, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3329, PETRI_PLACES=172, PETRI_TRANSITIONS=189} [2025-02-08 08:44:38,811 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 146 predicate places. [2025-02-08 08:44:38,811 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 189 transitions, 3329 flow [2025-02-08 08:44:38,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:38,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:38,811 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:38,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 08:44:39,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-02-08 08:44:39,012 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:39,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:39,013 INFO L85 PathProgramCache]: Analyzing trace with hash -243825080, now seen corresponding path program 12 times [2025-02-08 08:44:39,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:39,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471666018] [2025-02-08 08:44:39,013 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:39,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:39,016 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:39,017 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:39,017 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:39,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:39,085 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 08:44:39,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:39,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471666018] [2025-02-08 08:44:39,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471666018] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:39,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794268580] [2025-02-08 08:44:39,085 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:39,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:39,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:39,087 INFO L229 MonitoredProcess]: Starting monitored process 19 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 08:44:39,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 08:44:39,112 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:39,118 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:39,118 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:39,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:39,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:39,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:39,211 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 08:44:39,211 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:39,348 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 08:44:39,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794268580] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:39,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:39,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2025-02-08 08:44:39,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985356238] [2025-02-08 08:44:39,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:39,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:44:39,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:39,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:44:39,350 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2025-02-08 08:44:39,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:39,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 189 transitions, 3329 flow. Second operand has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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 08:44:39,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:39,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:39,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:40,021 INFO L124 PetriNetUnfolderBase]: 937/1978 cut-off events. [2025-02-08 08:44:40,022 INFO L125 PetriNetUnfolderBase]: For 20138/20138 co-relation queries the response was YES. [2025-02-08 08:44:40,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10853 conditions, 1978 events. 937/1978 cut-off events. For 20138/20138 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 13188 event pairs, 157 based on Foata normal form. 15/1993 useless extension candidates. Maximal degree in co-relation 10719. Up to 764 conditions per place. [2025-02-08 08:44:40,030 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 145 selfloop transitions, 108 changer transitions 46/300 dead transitions. [2025-02-08 08:44:40,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 300 transitions, 5180 flow [2025-02-08 08:44:40,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-02-08 08:44:40,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-02-08 08:44:40,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 251 transitions. [2025-02-08 08:44:40,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37351190476190477 [2025-02-08 08:44:40,031 INFO L175 Difference]: Start difference. First operand has 172 places, 189 transitions, 3329 flow. Second operand 28 states and 251 transitions. [2025-02-08 08:44:40,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 300 transitions, 5180 flow [2025-02-08 08:44:40,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 300 transitions, 4931 flow, removed 35 selfloop flow, removed 11 redundant places. [2025-02-08 08:44:40,079 INFO L231 Difference]: Finished difference. Result has 191 places, 183 transitions, 3393 flow [2025-02-08 08:44:40,079 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2923, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3393, PETRI_PLACES=191, PETRI_TRANSITIONS=183} [2025-02-08 08:44:40,082 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 165 predicate places. [2025-02-08 08:44:40,082 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 183 transitions, 3393 flow [2025-02-08 08:44:40,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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 08:44:40,083 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:40,083 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:40,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:40,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-02-08 08:44:40,283 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:40,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1251322886, now seen corresponding path program 13 times [2025-02-08 08:44:40,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:40,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041925915] [2025-02-08 08:44:40,284 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:40,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:40,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:40,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:40,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:40,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:40,361 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 08:44:40,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:40,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041925915] [2025-02-08 08:44:40,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041925915] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:40,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738453319] [2025-02-08 08:44:40,361 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:40,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:40,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:40,365 INFO L229 MonitoredProcess]: Starting monitored process 20 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 08:44:40,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 08:44:40,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:40,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:40,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:40,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:40,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:40,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:40,450 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 08:44:40,450 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:40,589 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 08:44:40,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738453319] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:40,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:40,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-02-08 08:44:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530342532] [2025-02-08 08:44:40,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:40,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 08:44:40,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:40,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 08:44:40,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:44:40,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:40,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 183 transitions, 3393 flow. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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 08:44:40,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:40,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:40,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:41,360 INFO L124 PetriNetUnfolderBase]: 892/1914 cut-off events. [2025-02-08 08:44:41,360 INFO L125 PetriNetUnfolderBase]: For 19801/19801 co-relation queries the response was YES. [2025-02-08 08:44:41,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10482 conditions, 1914 events. 892/1914 cut-off events. For 19801/19801 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 12875 event pairs, 59 based on Foata normal form. 3/1917 useless extension candidates. Maximal degree in co-relation 10345. Up to 565 conditions per place. [2025-02-08 08:44:41,370 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 98 selfloop transitions, 127 changer transitions 41/267 dead transitions. [2025-02-08 08:44:41,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 267 transitions, 4419 flow [2025-02-08 08:44:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-08 08:44:41,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-08 08:44:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 269 transitions. [2025-02-08 08:44:41,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3736111111111111 [2025-02-08 08:44:41,371 INFO L175 Difference]: Start difference. First operand has 191 places, 183 transitions, 3393 flow. Second operand 30 states and 269 transitions. [2025-02-08 08:44:41,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 267 transitions, 4419 flow [2025-02-08 08:44:41,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 267 transitions, 4139 flow, removed 81 selfloop flow, removed 16 redundant places. [2025-02-08 08:44:41,423 INFO L231 Difference]: Finished difference. Result has 202 places, 175 transitions, 3302 flow [2025-02-08 08:44:41,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3162, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=3302, PETRI_PLACES=202, PETRI_TRANSITIONS=175} [2025-02-08 08:44:41,424 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 176 predicate places. [2025-02-08 08:44:41,424 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 175 transitions, 3302 flow [2025-02-08 08:44:41,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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 08:44:41,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:41,424 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:41,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:41,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:41,625 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:41,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1622032698, now seen corresponding path program 14 times [2025-02-08 08:44:41,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:41,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201900019] [2025-02-08 08:44:41,626 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:41,628 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:41,629 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:41,629 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:41,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:41,701 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 08:44:41,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:41,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201900019] [2025-02-08 08:44:41,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201900019] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086301418] [2025-02-08 08:44:41,702 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:41,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:41,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:41,703 INFO L229 MonitoredProcess]: Starting monitored process 21 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 08:44:41,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-08 08:44:41,726 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:41,733 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:41,733 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:41,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:41,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:41,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:41,784 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 08:44:41,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:41,918 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 08:44:41,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086301418] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:41,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:41,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2025-02-08 08:44:41,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619807677] [2025-02-08 08:44:41,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:41,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-08 08:44:41,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:41,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-08 08:44:41,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2025-02-08 08:44:41,933 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:41,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 175 transitions, 3302 flow. Second operand has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 states have internal predecessors, (110), 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 08:44:41,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:41,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:41,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:42,515 INFO L124 PetriNetUnfolderBase]: 798/1719 cut-off events. [2025-02-08 08:44:42,516 INFO L125 PetriNetUnfolderBase]: For 17607/17607 co-relation queries the response was YES. [2025-02-08 08:44:42,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9671 conditions, 1719 events. 798/1719 cut-off events. For 17607/17607 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11217 event pairs, 34 based on Foata normal form. 7/1726 useless extension candidates. Maximal degree in co-relation 9581. Up to 718 conditions per place. [2025-02-08 08:44:42,523 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 71 selfloop transitions, 115 changer transitions 28/215 dead transitions. [2025-02-08 08:44:42,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 215 transitions, 3925 flow [2025-02-08 08:44:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 08:44:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 08:44:42,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 177 transitions. [2025-02-08 08:44:42,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35119047619047616 [2025-02-08 08:44:42,524 INFO L175 Difference]: Start difference. First operand has 202 places, 175 transitions, 3302 flow. Second operand 21 states and 177 transitions. [2025-02-08 08:44:42,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 215 transitions, 3925 flow [2025-02-08 08:44:42,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 215 transitions, 3650 flow, removed 18 selfloop flow, removed 21 redundant places. [2025-02-08 08:44:42,568 INFO L231 Difference]: Finished difference. Result has 186 places, 165 transitions, 3076 flow [2025-02-08 08:44:42,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2944, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=3076, PETRI_PLACES=186, PETRI_TRANSITIONS=165} [2025-02-08 08:44:42,568 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 160 predicate places. [2025-02-08 08:44:42,568 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 165 transitions, 3076 flow [2025-02-08 08:44:42,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.5) internal successors, (110), 20 states have internal predecessors, (110), 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 08:44:42,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:42,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:42,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-08 08:44:42,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:42,769 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:42,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:42,770 INFO L85 PathProgramCache]: Analyzing trace with hash -457902522, now seen corresponding path program 15 times [2025-02-08 08:44:42,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:42,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575450398] [2025-02-08 08:44:42,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:42,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:42,774 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:42,776 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:42,776 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:42,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:42,845 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 08:44:42,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575450398] [2025-02-08 08:44:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575450398] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534555539] [2025-02-08 08:44:42,845 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:42,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:42,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:42,848 INFO L229 MonitoredProcess]: Starting monitored process 22 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 08:44:42,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-08 08:44:42,877 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:42,885 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:42,885 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:42,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:42,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:42,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:42,938 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 08:44:42,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:43,112 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 08:44:43,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534555539] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:43,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:43,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 18 [2025-02-08 08:44:43,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994663986] [2025-02-08 08:44:43,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:43,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 08:44:43,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:43,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 08:44:43,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-02-08 08:44:43,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:43,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 165 transitions, 3076 flow. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:43,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:43,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:43,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:43,717 INFO L124 PetriNetUnfolderBase]: 794/1702 cut-off events. [2025-02-08 08:44:43,717 INFO L125 PetriNetUnfolderBase]: For 17467/17467 co-relation queries the response was YES. [2025-02-08 08:44:43,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9597 conditions, 1702 events. 794/1702 cut-off events. For 17467/17467 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11028 event pairs, 88 based on Foata normal form. 6/1708 useless extension candidates. Maximal degree in co-relation 9463. Up to 538 conditions per place. [2025-02-08 08:44:43,728 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 80 selfloop transitions, 107 changer transitions 21/209 dead transitions. [2025-02-08 08:44:43,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 209 transitions, 3786 flow [2025-02-08 08:44:43,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-08 08:44:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-08 08:44:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 168 transitions. [2025-02-08 08:44:43,729 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35 [2025-02-08 08:44:43,729 INFO L175 Difference]: Start difference. First operand has 186 places, 165 transitions, 3076 flow. Second operand 20 states and 168 transitions. [2025-02-08 08:44:43,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 209 transitions, 3786 flow [2025-02-08 08:44:43,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 209 transitions, 3439 flow, removed 19 selfloop flow, removed 15 redundant places. [2025-02-08 08:44:43,778 INFO L231 Difference]: Finished difference. Result has 184 places, 163 transitions, 2984 flow [2025-02-08 08:44:43,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2762, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2984, PETRI_PLACES=184, PETRI_TRANSITIONS=163} [2025-02-08 08:44:43,779 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 158 predicate places. [2025-02-08 08:44:43,779 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 163 transitions, 2984 flow [2025-02-08 08:44:43,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:43,779 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:43,779 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:43,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-08 08:44:43,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-02-08 08:44:43,984 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:43,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:43,985 INFO L85 PathProgramCache]: Analyzing trace with hash -944611708, now seen corresponding path program 16 times [2025-02-08 08:44:43,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:43,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730938733] [2025-02-08 08:44:43,985 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:43,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:43,987 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:43,988 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:43,989 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:43,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:44,068 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 08:44:44,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:44,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730938733] [2025-02-08 08:44:44,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730938733] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:44,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037091963] [2025-02-08 08:44:44,068 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:44,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:44,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:44,070 INFO L229 MonitoredProcess]: Starting monitored process 23 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 08:44:44,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-08 08:44:44,098 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:44,116 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:44,116 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:44,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:44,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:44,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:44,225 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 08:44:44,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:44,365 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 08:44:44,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037091963] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:44,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:44,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:44,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712296336] [2025-02-08 08:44:44,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:44,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:44,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:44,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:44,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=419, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:44,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:44,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 163 transitions, 2984 flow. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 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 08:44:44,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:44,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:44,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:44,773 INFO L124 PetriNetUnfolderBase]: 883/1843 cut-off events. [2025-02-08 08:44:44,773 INFO L125 PetriNetUnfolderBase]: For 18748/18748 co-relation queries the response was YES. [2025-02-08 08:44:44,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10235 conditions, 1843 events. 883/1843 cut-off events. For 18748/18748 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 11964 event pairs, 236 based on Foata normal form. 2/1845 useless extension candidates. Maximal degree in co-relation 10058. Up to 1166 conditions per place. [2025-02-08 08:44:44,781 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 144 selfloop transitions, 80 changer transitions 12/237 dead transitions. [2025-02-08 08:44:44,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 237 transitions, 4464 flow [2025-02-08 08:44:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:44:44,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:44:44,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 132 transitions. [2025-02-08 08:44:44,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2025-02-08 08:44:44,783 INFO L175 Difference]: Start difference. First operand has 184 places, 163 transitions, 2984 flow. Second operand 14 states and 132 transitions. [2025-02-08 08:44:44,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 237 transitions, 4464 flow [2025-02-08 08:44:44,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 237 transitions, 4095 flow, removed 42 selfloop flow, removed 17 redundant places. [2025-02-08 08:44:44,828 INFO L231 Difference]: Finished difference. Result has 178 places, 182 transitions, 3303 flow [2025-02-08 08:44:44,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2715, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3303, PETRI_PLACES=178, PETRI_TRANSITIONS=182} [2025-02-08 08:44:44,828 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 152 predicate places. [2025-02-08 08:44:44,828 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 182 transitions, 3303 flow [2025-02-08 08:44:44,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 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 08:44:44,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:44,829 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:44,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-08 08:44:45,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-02-08 08:44:45,033 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:45,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:45,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1621026302, now seen corresponding path program 17 times [2025-02-08 08:44:45,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:45,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13356980] [2025-02-08 08:44:45,034 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:45,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:45,036 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:45,041 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:45,041 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:45,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:45,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:45,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13356980] [2025-02-08 08:44:45,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13356980] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449622658] [2025-02-08 08:44:45,105 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:45,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:45,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:45,108 INFO L229 MonitoredProcess]: Starting monitored process 24 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 08:44:45,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-08 08:44:45,133 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:45,141 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:45,141 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:45,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:45,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 08:44:45,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:45,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:44:45,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449622658] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:45,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:44:45,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2025-02-08 08:44:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056110562] [2025-02-08 08:44:45,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:45,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:45,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:45,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:45,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-02-08 08:44:45,197 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:45,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 182 transitions, 3303 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:45,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:45,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:45,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:45,388 INFO L124 PetriNetUnfolderBase]: 861/1785 cut-off events. [2025-02-08 08:44:45,388 INFO L125 PetriNetUnfolderBase]: For 17045/17045 co-relation queries the response was YES. [2025-02-08 08:44:45,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9814 conditions, 1785 events. 861/1785 cut-off events. For 17045/17045 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 11394 event pairs, 241 based on Foata normal form. 3/1788 useless extension candidates. Maximal degree in co-relation 9648. Up to 1304 conditions per place. [2025-02-08 08:44:45,396 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 120 selfloop transitions, 81 changer transitions 15/217 dead transitions. [2025-02-08 08:44:45,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 217 transitions, 4224 flow [2025-02-08 08:44:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:45,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 90 transitions. [2025-02-08 08:44:45,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2025-02-08 08:44:45,397 INFO L175 Difference]: Start difference. First operand has 178 places, 182 transitions, 3303 flow. Second operand 9 states and 90 transitions. [2025-02-08 08:44:45,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 217 transitions, 4224 flow [2025-02-08 08:44:45,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 217 transitions, 4116 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-02-08 08:44:45,445 INFO L231 Difference]: Finished difference. Result has 183 places, 186 transitions, 3491 flow [2025-02-08 08:44:45,446 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3201, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3491, PETRI_PLACES=183, PETRI_TRANSITIONS=186} [2025-02-08 08:44:45,446 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 157 predicate places. [2025-02-08 08:44:45,446 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 186 transitions, 3491 flow [2025-02-08 08:44:45,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:45,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:45,447 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:45,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-02-08 08:44:45,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-02-08 08:44:45,648 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:45,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1004925972, now seen corresponding path program 18 times [2025-02-08 08:44:45,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:45,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107579331] [2025-02-08 08:44:45,648 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:45,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:45,650 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:45,652 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:45,652 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:45,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:45,716 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 08:44:45,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:45,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107579331] [2025-02-08 08:44:45,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107579331] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:45,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608112681] [2025-02-08 08:44:45,717 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:45,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:45,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:45,719 INFO L229 MonitoredProcess]: Starting monitored process 25 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 08:44:45,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-08 08:44:45,746 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:45,756 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:45,756 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:45,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:45,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:45,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:45,830 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 08:44:45,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:45,970 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 08:44:45,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608112681] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:45,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:45,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-02-08 08:44:45,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835173754] [2025-02-08 08:44:45,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:45,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 08:44:45,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:45,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 08:44:45,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2025-02-08 08:44:45,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:45,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 186 transitions, 3491 flow. Second operand has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 22 states have internal predecessors, (122), 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 08:44:45,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:45,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:45,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:46,511 INFO L124 PetriNetUnfolderBase]: 1169/2366 cut-off events. [2025-02-08 08:44:46,512 INFO L125 PetriNetUnfolderBase]: For 23937/23937 co-relation queries the response was YES. [2025-02-08 08:44:46,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13551 conditions, 2366 events. 1169/2366 cut-off events. For 23937/23937 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 15934 event pairs, 216 based on Foata normal form. 9/2375 useless extension candidates. Maximal degree in co-relation 13378. Up to 1254 conditions per place. [2025-02-08 08:44:46,523 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 149 selfloop transitions, 98 changer transitions 61/309 dead transitions. [2025-02-08 08:44:46,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 309 transitions, 5807 flow [2025-02-08 08:44:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-08 08:44:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-02-08 08:44:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 183 transitions. [2025-02-08 08:44:46,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38125 [2025-02-08 08:44:46,524 INFO L175 Difference]: Start difference. First operand has 183 places, 186 transitions, 3491 flow. Second operand 20 states and 183 transitions. [2025-02-08 08:44:46,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 309 transitions, 5807 flow [2025-02-08 08:44:46,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 309 transitions, 5586 flow, removed 33 selfloop flow, removed 6 redundant places. [2025-02-08 08:44:46,595 INFO L231 Difference]: Finished difference. Result has 203 places, 200 transitions, 3912 flow [2025-02-08 08:44:46,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3326, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3912, PETRI_PLACES=203, PETRI_TRANSITIONS=200} [2025-02-08 08:44:46,596 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 177 predicate places. [2025-02-08 08:44:46,596 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 200 transitions, 3912 flow [2025-02-08 08:44:46,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 22 states have internal predecessors, (122), 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 08:44:46,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:46,596 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:46,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-08 08:44:46,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-02-08 08:44:46,800 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:46,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:46,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1415872526, now seen corresponding path program 19 times [2025-02-08 08:44:46,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:46,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971545531] [2025-02-08 08:44:46,800 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:46,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:46,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:46,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:46,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:46,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:46,901 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 08:44:46,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:46,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971545531] [2025-02-08 08:44:46,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971545531] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:46,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575657096] [2025-02-08 08:44:46,902 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:46,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:46,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:46,904 INFO L229 MonitoredProcess]: Starting monitored process 26 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 08:44:46,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-08 08:44:46,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:46,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:46,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:46,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:46,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:46,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:46,999 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 08:44:46,999 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:47,122 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 08:44:47,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575657096] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:47,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:47,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-02-08 08:44:47,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906676127] [2025-02-08 08:44:47,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:47,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 08:44:47,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:47,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 08:44:47,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=360, Unknown=0, NotChecked=0, Total=462 [2025-02-08 08:44:47,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:47,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 200 transitions, 3912 flow. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 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 08:44:47,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:47,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:47,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:47,553 INFO L124 PetriNetUnfolderBase]: 923/1911 cut-off events. [2025-02-08 08:44:47,553 INFO L125 PetriNetUnfolderBase]: For 21186/21186 co-relation queries the response was YES. [2025-02-08 08:44:47,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11362 conditions, 1911 events. 923/1911 cut-off events. For 21186/21186 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 12474 event pairs, 210 based on Foata normal form. 6/1917 useless extension candidates. Maximal degree in co-relation 11168. Up to 1185 conditions per place. [2025-02-08 08:44:47,564 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 133 selfloop transitions, 87 changer transitions 35/256 dead transitions. [2025-02-08 08:44:47,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 256 transitions, 5154 flow [2025-02-08 08:44:47,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:44:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:44:47,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 135 transitions. [2025-02-08 08:44:47,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4017857142857143 [2025-02-08 08:44:47,565 INFO L175 Difference]: Start difference. First operand has 203 places, 200 transitions, 3912 flow. Second operand 14 states and 135 transitions. [2025-02-08 08:44:47,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 256 transitions, 5154 flow [2025-02-08 08:44:47,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 256 transitions, 4988 flow, removed 34 selfloop flow, removed 12 redundant places. [2025-02-08 08:44:47,655 INFO L231 Difference]: Finished difference. Result has 200 places, 185 transitions, 3613 flow [2025-02-08 08:44:47,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3754, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3613, PETRI_PLACES=200, PETRI_TRANSITIONS=185} [2025-02-08 08:44:47,656 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 174 predicate places. [2025-02-08 08:44:47,656 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 185 transitions, 3613 flow [2025-02-08 08:44:47,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 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 08:44:47,656 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:47,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:47,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:47,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2025-02-08 08:44:47,857 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:47,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:47,858 INFO L85 PathProgramCache]: Analyzing trace with hash -576026668, now seen corresponding path program 20 times [2025-02-08 08:44:47,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:47,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250580594] [2025-02-08 08:44:47,858 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:47,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:47,860 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:47,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:47,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:47,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:47,927 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 08:44:47,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:47,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250580594] [2025-02-08 08:44:47,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250580594] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:47,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376264646] [2025-02-08 08:44:47,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:47,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:47,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:47,929 INFO L229 MonitoredProcess]: Starting monitored process 27 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 08:44:47,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-02-08 08:44:47,949 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:47,957 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:47,957 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:47,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:47,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:47,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:48,020 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 08:44:48,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:48,145 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 08:44:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376264646] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:48,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:48,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-02-08 08:44:48,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83984885] [2025-02-08 08:44:48,145 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:48,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-08 08:44:48,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:48,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-08 08:44:48,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2025-02-08 08:44:48,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:48,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 185 transitions, 3613 flow. Second operand has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 22 states have internal predecessors, (120), 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 08:44:48,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:48,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:48,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:48,513 INFO L124 PetriNetUnfolderBase]: 842/1727 cut-off events. [2025-02-08 08:44:48,513 INFO L125 PetriNetUnfolderBase]: For 19103/19103 co-relation queries the response was YES. [2025-02-08 08:44:48,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10252 conditions, 1727 events. 842/1727 cut-off events. For 19103/19103 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 10829 event pairs, 219 based on Foata normal form. 2/1729 useless extension candidates. Maximal degree in co-relation 10091. Up to 1206 conditions per place. [2025-02-08 08:44:48,521 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 128 selfloop transitions, 82 changer transitions 17/228 dead transitions. [2025-02-08 08:44:48,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 228 transitions, 4592 flow [2025-02-08 08:44:48,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:44:48,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:44:48,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 122 transitions. [2025-02-08 08:44:48,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.391025641025641 [2025-02-08 08:44:48,522 INFO L175 Difference]: Start difference. First operand has 200 places, 185 transitions, 3613 flow. Second operand 13 states and 122 transitions. [2025-02-08 08:44:48,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 228 transitions, 4592 flow [2025-02-08 08:44:48,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 228 transitions, 4306 flow, removed 12 selfloop flow, removed 15 redundant places. [2025-02-08 08:44:48,568 INFO L231 Difference]: Finished difference. Result has 194 places, 180 transitions, 3398 flow [2025-02-08 08:44:48,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3338, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3398, PETRI_PLACES=194, PETRI_TRANSITIONS=180} [2025-02-08 08:44:48,568 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 168 predicate places. [2025-02-08 08:44:48,569 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 180 transitions, 3398 flow [2025-02-08 08:44:48,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.454545454545454) internal successors, (120), 22 states have internal predecessors, (120), 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 08:44:48,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:48,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:48,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-02-08 08:44:48,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2025-02-08 08:44:48,769 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:48,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:48,770 INFO L85 PathProgramCache]: Analyzing trace with hash -181113398, now seen corresponding path program 21 times [2025-02-08 08:44:48,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534957710] [2025-02-08 08:44:48,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:48,772 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:48,773 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:48,773 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:48,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:48,847 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 08:44:48,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:48,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534957710] [2025-02-08 08:44:48,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534957710] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:48,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085570667] [2025-02-08 08:44:48,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:48,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:48,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:48,850 INFO L229 MonitoredProcess]: Starting monitored process 28 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 08:44:48,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-02-08 08:44:48,873 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:48,881 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:48,881 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:48,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:48,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:48,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:48,955 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 08:44:48,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:49,105 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 08:44:49,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085570667] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:49,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:49,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:49,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134839326] [2025-02-08 08:44:49,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:49,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:49,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:49,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:49,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:49,109 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:49,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 180 transitions, 3398 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:49,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:49,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:49,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:49,394 INFO L124 PetriNetUnfolderBase]: 835/1705 cut-off events. [2025-02-08 08:44:49,394 INFO L125 PetriNetUnfolderBase]: For 19052/19052 co-relation queries the response was YES. [2025-02-08 08:44:49,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10007 conditions, 1705 events. 835/1705 cut-off events. For 19052/19052 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 10594 event pairs, 223 based on Foata normal form. 1/1706 useless extension candidates. Maximal degree in co-relation 9848. Up to 1231 conditions per place. [2025-02-08 08:44:49,403 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 131 selfloop transitions, 62 changer transitions 18/212 dead transitions. [2025-02-08 08:44:49,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 212 transitions, 4117 flow [2025-02-08 08:44:49,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:44:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:44:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 116 transitions. [2025-02-08 08:44:49,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3717948717948718 [2025-02-08 08:44:49,404 INFO L175 Difference]: Start difference. First operand has 194 places, 180 transitions, 3398 flow. Second operand 13 states and 116 transitions. [2025-02-08 08:44:49,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 212 transitions, 4117 flow [2025-02-08 08:44:49,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 212 transitions, 3967 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 08:44:49,449 INFO L231 Difference]: Finished difference. Result has 196 places, 178 transitions, 3358 flow [2025-02-08 08:44:49,450 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3248, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3358, PETRI_PLACES=196, PETRI_TRANSITIONS=178} [2025-02-08 08:44:49,450 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 170 predicate places. [2025-02-08 08:44:49,450 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 178 transitions, 3358 flow [2025-02-08 08:44:49,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:49,450 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:49,450 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:49,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-02-08 08:44:49,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2025-02-08 08:44:49,651 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:49,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:49,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2120192552, now seen corresponding path program 22 times [2025-02-08 08:44:49,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:49,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953630808] [2025-02-08 08:44:49,652 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:49,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:49,654 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:49,655 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:49,655 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:49,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:49,732 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 08:44:49,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:49,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953630808] [2025-02-08 08:44:49,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953630808] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:49,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001386983] [2025-02-08 08:44:49,733 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:49,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:49,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:49,735 INFO L229 MonitoredProcess]: Starting monitored process 29 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 08:44:49,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-02-08 08:44:49,756 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:49,764 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:49,764 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:49,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:49,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:49,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:49,840 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 08:44:49,840 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:49,978 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 08:44:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001386983] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:49,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:49,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 23 [2025-02-08 08:44:49,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147295873] [2025-02-08 08:44:49,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:49,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:44:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:49,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:44:49,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2025-02-08 08:44:49,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:49,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 178 transitions, 3358 flow. Second operand has 24 states, 24 states have (on average 5.458333333333333) internal successors, (131), 24 states have internal predecessors, (131), 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 08:44:49,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:49,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:49,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:50,438 INFO L124 PetriNetUnfolderBase]: 837/1739 cut-off events. [2025-02-08 08:44:50,438 INFO L125 PetriNetUnfolderBase]: For 18408/18408 co-relation queries the response was YES. [2025-02-08 08:44:50,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9888 conditions, 1739 events. 837/1739 cut-off events. For 18408/18408 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 11031 event pairs, 209 based on Foata normal form. 5/1744 useless extension candidates. Maximal degree in co-relation 9743. Up to 1089 conditions per place. [2025-02-08 08:44:50,447 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 130 selfloop transitions, 62 changer transitions 31/224 dead transitions. [2025-02-08 08:44:50,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 224 transitions, 4269 flow [2025-02-08 08:44:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:44:50,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:44:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 125 transitions. [2025-02-08 08:44:50,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37202380952380953 [2025-02-08 08:44:50,448 INFO L175 Difference]: Start difference. First operand has 196 places, 178 transitions, 3358 flow. Second operand 14 states and 125 transitions. [2025-02-08 08:44:50,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 224 transitions, 4269 flow [2025-02-08 08:44:50,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 224 transitions, 4111 flow, removed 4 selfloop flow, removed 12 redundant places. [2025-02-08 08:44:50,493 INFO L231 Difference]: Finished difference. Result has 194 places, 171 transitions, 3191 flow [2025-02-08 08:44:50,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3202, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3191, PETRI_PLACES=194, PETRI_TRANSITIONS=171} [2025-02-08 08:44:50,493 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 168 predicate places. [2025-02-08 08:44:50,493 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 171 transitions, 3191 flow [2025-02-08 08:44:50,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.458333333333333) internal successors, (131), 24 states have internal predecessors, (131), 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 08:44:50,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:50,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:50,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-02-08 08:44:50,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-02-08 08:44:50,695 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:50,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash 185154972, now seen corresponding path program 23 times [2025-02-08 08:44:50,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:50,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788193810] [2025-02-08 08:44:50,695 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:50,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:50,697 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:50,698 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:50,698 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:50,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:50,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788193810] [2025-02-08 08:44:50,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788193810] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:50,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733449962] [2025-02-08 08:44:50,737 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:50,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:50,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:50,739 INFO L229 MonitoredProcess]: Starting monitored process 30 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 08:44:50,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-02-08 08:44:50,763 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:50,770 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:50,770 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:50,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:50,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 08:44:50,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:50,803 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:44:50,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733449962] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:50,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:44:50,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 10 [2025-02-08 08:44:50,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508334051] [2025-02-08 08:44:50,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:50,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:50,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:50,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:50,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:44:50,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:50,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 171 transitions, 3191 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:50,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:50,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:50,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:50,978 INFO L124 PetriNetUnfolderBase]: 768/1615 cut-off events. [2025-02-08 08:44:50,978 INFO L125 PetriNetUnfolderBase]: For 17127/17127 co-relation queries the response was YES. [2025-02-08 08:44:50,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9163 conditions, 1615 events. 768/1615 cut-off events. For 17127/17127 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 10189 event pairs, 86 based on Foata normal form. 10/1625 useless extension candidates. Maximal degree in co-relation 9027. Up to 653 conditions per place. [2025-02-08 08:44:50,985 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 94 selfloop transitions, 61 changer transitions 42/198 dead transitions. [2025-02-08 08:44:50,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 198 transitions, 3911 flow [2025-02-08 08:44:50,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:50,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 86 transitions. [2025-02-08 08:44:50,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39814814814814814 [2025-02-08 08:44:50,986 INFO L175 Difference]: Start difference. First operand has 194 places, 171 transitions, 3191 flow. Second operand 9 states and 86 transitions. [2025-02-08 08:44:50,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 198 transitions, 3911 flow [2025-02-08 08:44:51,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 198 transitions, 3741 flow, removed 15 selfloop flow, removed 14 redundant places. [2025-02-08 08:44:51,027 INFO L231 Difference]: Finished difference. Result has 186 places, 145 transitions, 2804 flow [2025-02-08 08:44:51,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3025, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2804, PETRI_PLACES=186, PETRI_TRANSITIONS=145} [2025-02-08 08:44:51,027 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 160 predicate places. [2025-02-08 08:44:51,027 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 145 transitions, 2804 flow [2025-02-08 08:44:51,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:51,027 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:51,028 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:51,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-02-08 08:44:51,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:51,228 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:51,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1058154160, now seen corresponding path program 24 times [2025-02-08 08:44:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:51,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696216165] [2025-02-08 08:44:51,229 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:51,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:51,230 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:51,232 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:51,232 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:51,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:51,293 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 08:44:51,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:51,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696216165] [2025-02-08 08:44:51,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696216165] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:51,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686843665] [2025-02-08 08:44:51,293 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:51,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:51,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:51,295 INFO L229 MonitoredProcess]: Starting monitored process 31 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 08:44:51,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-02-08 08:44:51,318 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:51,326 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:51,326 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:51,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:51,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:51,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:51,402 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 08:44:51,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:51,523 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 08:44:51,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686843665] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:51,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:51,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:51,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383899093] [2025-02-08 08:44:51,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:51,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:51,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:51,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:51,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:51,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:51,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 145 transitions, 2804 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:51,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:51,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:51,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:51,812 INFO L124 PetriNetUnfolderBase]: 540/1173 cut-off events. [2025-02-08 08:44:51,813 INFO L125 PetriNetUnfolderBase]: For 13028/13028 co-relation queries the response was YES. [2025-02-08 08:44:51,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6893 conditions, 1173 events. 540/1173 cut-off events. For 13028/13028 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7118 event pairs, 127 based on Foata normal form. 2/1175 useless extension candidates. Maximal degree in co-relation 6839. Up to 703 conditions per place. [2025-02-08 08:44:51,819 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 96 selfloop transitions, 52 changer transitions 23/172 dead transitions. [2025-02-08 08:44:51,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 172 transitions, 3382 flow [2025-02-08 08:44:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:44:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:44:51,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 104 transitions. [2025-02-08 08:44:51,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2025-02-08 08:44:51,820 INFO L175 Difference]: Start difference. First operand has 186 places, 145 transitions, 2804 flow. Second operand 12 states and 104 transitions. [2025-02-08 08:44:51,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 172 transitions, 3382 flow [2025-02-08 08:44:51,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 172 transitions, 3177 flow, removed 13 selfloop flow, removed 12 redundant places. [2025-02-08 08:44:51,852 INFO L231 Difference]: Finished difference. Result has 172 places, 137 transitions, 2563 flow [2025-02-08 08:44:51,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2617, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2563, PETRI_PLACES=172, PETRI_TRANSITIONS=137} [2025-02-08 08:44:51,852 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 146 predicate places. [2025-02-08 08:44:51,852 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 137 transitions, 2563 flow [2025-02-08 08:44:51,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:51,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:51,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:51,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-02-08 08:44:52,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2025-02-08 08:44:52,057 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:52,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:52,057 INFO L85 PathProgramCache]: Analyzing trace with hash 791495132, now seen corresponding path program 25 times [2025-02-08 08:44:52,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:52,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451645263] [2025-02-08 08:44:52,057 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:52,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:52,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:52,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:52,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:52,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:52,135 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 08:44:52,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:52,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451645263] [2025-02-08 08:44:52,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451645263] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:52,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531785371] [2025-02-08 08:44:52,136 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:52,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:52,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:52,138 INFO L229 MonitoredProcess]: Starting monitored process 32 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 08:44:52,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-02-08 08:44:52,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:44:52,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:52,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:52,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:52,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:52,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:52,293 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 08:44:52,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:52,475 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 08:44:52,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531785371] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:52,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:52,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:52,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119990509] [2025-02-08 08:44:52,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:52,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:52,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:52,477 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:52,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:52,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:52,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 137 transitions, 2563 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:52,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:52,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:52,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:52,828 INFO L124 PetriNetUnfolderBase]: 522/1116 cut-off events. [2025-02-08 08:44:52,828 INFO L125 PetriNetUnfolderBase]: For 11802/11802 co-relation queries the response was YES. [2025-02-08 08:44:52,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6511 conditions, 1116 events. 522/1116 cut-off events. For 11802/11802 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6559 event pairs, 31 based on Foata normal form. 5/1121 useless extension candidates. Maximal degree in co-relation 6461. Up to 322 conditions per place. [2025-02-08 08:44:52,832 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 76 selfloop transitions, 85 changer transitions 26/188 dead transitions. [2025-02-08 08:44:52,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 188 transitions, 3495 flow [2025-02-08 08:44:52,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 08:44:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 08:44:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 135 transitions. [2025-02-08 08:44:52,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2025-02-08 08:44:52,833 INFO L175 Difference]: Start difference. First operand has 172 places, 137 transitions, 2563 flow. Second operand 15 states and 135 transitions. [2025-02-08 08:44:52,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 188 transitions, 3495 flow [2025-02-08 08:44:52,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 188 transitions, 3339 flow, removed 6 selfloop flow, removed 10 redundant places. [2025-02-08 08:44:52,862 INFO L231 Difference]: Finished difference. Result has 170 places, 134 transitions, 2528 flow [2025-02-08 08:44:52,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2412, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2528, PETRI_PLACES=170, PETRI_TRANSITIONS=134} [2025-02-08 08:44:52,863 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 144 predicate places. [2025-02-08 08:44:52,864 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 134 transitions, 2528 flow [2025-02-08 08:44:52,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:52,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:52,868 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:52,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:53,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:53,068 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:53,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:53,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1701423260, now seen corresponding path program 26 times [2025-02-08 08:44:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111539993] [2025-02-08 08:44:53,071 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:53,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:53,073 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:53,074 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:53,074 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:53,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:53,180 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 08:44:53,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:53,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111539993] [2025-02-08 08:44:53,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111539993] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:53,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423431291] [2025-02-08 08:44:53,181 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:53,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:53,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:53,185 INFO L229 MonitoredProcess]: Starting monitored process 33 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 08:44:53,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-02-08 08:44:53,205 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:53,212 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:53,212 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:53,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:53,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:53,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:53,293 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 08:44:53,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:53,418 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 08:44:53,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423431291] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:53,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:53,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:53,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733544431] [2025-02-08 08:44:53,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:53,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:53,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:53,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:53,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=407, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:53,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:53,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 134 transitions, 2528 flow. Second operand has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:53,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:53,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:53,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:53,749 INFO L124 PetriNetUnfolderBase]: 442/940 cut-off events. [2025-02-08 08:44:53,749 INFO L125 PetriNetUnfolderBase]: For 11241/11241 co-relation queries the response was YES. [2025-02-08 08:44:53,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5695 conditions, 940 events. 442/940 cut-off events. For 11241/11241 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5195 event pairs, 31 based on Foata normal form. 3/943 useless extension candidates. Maximal degree in co-relation 5646. Up to 303 conditions per place. [2025-02-08 08:44:53,753 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 66 selfloop transitions, 73 changer transitions 35/175 dead transitions. [2025-02-08 08:44:53,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 175 transitions, 3219 flow [2025-02-08 08:44:53,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 08:44:53,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 08:44:53,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 141 transitions. [2025-02-08 08:44:53,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3671875 [2025-02-08 08:44:53,754 INFO L175 Difference]: Start difference. First operand has 170 places, 134 transitions, 2528 flow. Second operand 16 states and 141 transitions. [2025-02-08 08:44:53,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 175 transitions, 3219 flow [2025-02-08 08:44:53,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 175 transitions, 2879 flow, removed 57 selfloop flow, removed 16 redundant places. [2025-02-08 08:44:53,777 INFO L231 Difference]: Finished difference. Result has 167 places, 118 transitions, 2078 flow [2025-02-08 08:44:53,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2219, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=2078, PETRI_PLACES=167, PETRI_TRANSITIONS=118} [2025-02-08 08:44:53,778 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 141 predicate places. [2025-02-08 08:44:53,778 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 118 transitions, 2078 flow [2025-02-08 08:44:53,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.478260869565218) internal successors, (126), 23 states have internal predecessors, (126), 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 08:44:53,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:53,778 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:53,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-02-08 08:44:53,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2025-02-08 08:44:53,980 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:53,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1000635706, now seen corresponding path program 27 times [2025-02-08 08:44:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:53,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132489888] [2025-02-08 08:44:53,980 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:53,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:53,982 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:53,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:53,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:53,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:54,054 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 08:44:54,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:54,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132489888] [2025-02-08 08:44:54,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132489888] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:54,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592610064] [2025-02-08 08:44:54,054 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:54,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:54,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:54,056 INFO L229 MonitoredProcess]: Starting monitored process 34 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 08:44:54,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-02-08 08:44:54,076 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:54,084 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:54,085 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:54,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:54,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:54,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:54,140 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 08:44:54,141 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:54,258 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 08:44:54,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592610064] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:54,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:54,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-02-08 08:44:54,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194793543] [2025-02-08 08:44:54,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:54,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-08 08:44:54,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:54,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-08 08:44:54,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=329, Unknown=0, NotChecked=0, Total=420 [2025-02-08 08:44:54,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:54,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 118 transitions, 2078 flow. Second operand has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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 08:44:54,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:54,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:54,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:54,662 INFO L124 PetriNetUnfolderBase]: 477/1001 cut-off events. [2025-02-08 08:44:54,663 INFO L125 PetriNetUnfolderBase]: For 11376/11376 co-relation queries the response was YES. [2025-02-08 08:44:54,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5768 conditions, 1001 events. 477/1001 cut-off events. For 11376/11376 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5596 event pairs, 16 based on Foata normal form. 2/1003 useless extension candidates. Maximal degree in co-relation 5722. Up to 244 conditions per place. [2025-02-08 08:44:54,667 INFO L140 encePairwiseOnDemand]: 13/24 looper letters, 68 selfloop transitions, 76 changer transitions 69/214 dead transitions. [2025-02-08 08:44:54,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 3556 flow [2025-02-08 08:44:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-08 08:44:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-02-08 08:44:54,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 208 transitions. [2025-02-08 08:44:54,672 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2025-02-08 08:44:54,672 INFO L175 Difference]: Start difference. First operand has 167 places, 118 transitions, 2078 flow. Second operand 24 states and 208 transitions. [2025-02-08 08:44:54,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 3556 flow [2025-02-08 08:44:54,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 214 transitions, 3240 flow, removed 44 selfloop flow, removed 16 redundant places. [2025-02-08 08:44:54,697 INFO L231 Difference]: Finished difference. Result has 170 places, 112 transitions, 1913 flow [2025-02-08 08:44:54,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1849, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1913, PETRI_PLACES=170, PETRI_TRANSITIONS=112} [2025-02-08 08:44:54,699 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 144 predicate places. [2025-02-08 08:44:54,699 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 112 transitions, 1913 flow [2025-02-08 08:44:54,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.523809523809524) internal successors, (116), 21 states have internal predecessors, (116), 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 08:44:54,699 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:54,700 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:54,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:54,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:54,904 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:54,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:54,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1296770348, now seen corresponding path program 28 times [2025-02-08 08:44:54,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:54,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518002578] [2025-02-08 08:44:54,905 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:54,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:54,910 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:54,914 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:54,914 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:54,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:55,005 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 08:44:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518002578] [2025-02-08 08:44:55,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518002578] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328470957] [2025-02-08 08:44:55,007 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:55,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:55,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:55,014 INFO L229 MonitoredProcess]: Starting monitored process 35 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 08:44:55,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-02-08 08:44:55,050 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:55,061 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:55,061 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:55,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:55,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-08 08:44:55,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:55,175 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 08:44:55,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:55,302 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 08:44:55,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328470957] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:55,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:55,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-02-08 08:44:55,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623018920] [2025-02-08 08:44:55,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:55,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 08:44:55,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:55,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 08:44:55,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2025-02-08 08:44:55,317 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:55,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 112 transitions, 1913 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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 08:44:55,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:55,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:55,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:55,629 INFO L124 PetriNetUnfolderBase]: 363/809 cut-off events. [2025-02-08 08:44:55,629 INFO L125 PetriNetUnfolderBase]: For 7717/7717 co-relation queries the response was YES. [2025-02-08 08:44:55,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4411 conditions, 809 events. 363/809 cut-off events. For 7717/7717 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4447 event pairs, 57 based on Foata normal form. 4/813 useless extension candidates. Maximal degree in co-relation 4363. Up to 277 conditions per place. [2025-02-08 08:44:55,633 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 77 selfloop transitions, 59 changer transitions 19/156 dead transitions. [2025-02-08 08:44:55,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 156 transitions, 2613 flow [2025-02-08 08:44:55,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:44:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:44:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 120 transitions. [2025-02-08 08:44:55,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38461538461538464 [2025-02-08 08:44:55,634 INFO L175 Difference]: Start difference. First operand has 170 places, 112 transitions, 1913 flow. Second operand 13 states and 120 transitions. [2025-02-08 08:44:55,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 156 transitions, 2613 flow [2025-02-08 08:44:55,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 2301 flow, removed 75 selfloop flow, removed 21 redundant places. [2025-02-08 08:44:55,650 INFO L231 Difference]: Finished difference. Result has 161 places, 113 transitions, 1864 flow [2025-02-08 08:44:55,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1643, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1864, PETRI_PLACES=161, PETRI_TRANSITIONS=113} [2025-02-08 08:44:55,650 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 135 predicate places. [2025-02-08 08:44:55,650 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 113 transitions, 1864 flow [2025-02-08 08:44:55,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 states have internal predecessors, (125), 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 08:44:55,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:55,650 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:55,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:55,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:55,855 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:55,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:55,855 INFO L85 PathProgramCache]: Analyzing trace with hash 761540546, now seen corresponding path program 29 times [2025-02-08 08:44:55,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:55,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738344025] [2025-02-08 08:44:55,855 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:55,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:55,857 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:55,858 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:55,858 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:55,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:55,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:55,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738344025] [2025-02-08 08:44:55,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738344025] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:55,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410866590] [2025-02-08 08:44:55,911 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:55,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:55,914 INFO L229 MonitoredProcess]: Starting monitored process 36 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 08:44:55,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-02-08 08:44:55,936 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-08 08:44:55,943 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:44:55,944 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:55,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:55,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 08:44:55,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:44:56,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410866590] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:44:56,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:44:56,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2025-02-08 08:44:56,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637285476] [2025-02-08 08:44:56,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:44:56,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:44:56,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:56,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:44:56,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:44:56,009 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:56,009 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 113 transitions, 1864 flow. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:56,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:56,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:56,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:56,123 INFO L124 PetriNetUnfolderBase]: 312/676 cut-off events. [2025-02-08 08:44:56,123 INFO L125 PetriNetUnfolderBase]: For 6170/6170 co-relation queries the response was YES. [2025-02-08 08:44:56,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3769 conditions, 676 events. 312/676 cut-off events. For 6170/6170 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3435 event pairs, 65 based on Foata normal form. 4/680 useless extension candidates. Maximal degree in co-relation 3724. Up to 305 conditions per place. [2025-02-08 08:44:56,126 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 78 selfloop transitions, 34 changer transitions 18/131 dead transitions. [2025-02-08 08:44:56,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 131 transitions, 2208 flow [2025-02-08 08:44:56,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:56,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 87 transitions. [2025-02-08 08:44:56,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2025-02-08 08:44:56,127 INFO L175 Difference]: Start difference. First operand has 161 places, 113 transitions, 1864 flow. Second operand 9 states and 87 transitions. [2025-02-08 08:44:56,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 131 transitions, 2208 flow [2025-02-08 08:44:56,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 131 transitions, 2075 flow, removed 13 selfloop flow, removed 11 redundant places. [2025-02-08 08:44:56,139 INFO L231 Difference]: Finished difference. Result has 154 places, 102 transitions, 1608 flow [2025-02-08 08:44:56,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1732, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1608, PETRI_PLACES=154, PETRI_TRANSITIONS=102} [2025-02-08 08:44:56,139 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 128 predicate places. [2025-02-08 08:44:56,140 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 102 transitions, 1608 flow [2025-02-08 08:44:56,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:56,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:56,140 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:56,147 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-02-08 08:44:56,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2025-02-08 08:44:56,344 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:56,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash 746174651, now seen corresponding path program 30 times [2025-02-08 08:44:56,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:56,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854675179] [2025-02-08 08:44:56,344 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:56,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:56,346 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 20 statements into 2 equivalence classes. [2025-02-08 08:44:56,347 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:44:56,348 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:56,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:56,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:56,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854675179] [2025-02-08 08:44:56,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854675179] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:56,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421985101] [2025-02-08 08:44:56,386 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:44:56,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:56,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:56,389 INFO L229 MonitoredProcess]: Starting monitored process 37 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 08:44:56,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-02-08 08:44:56,412 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 20 statements into 2 equivalence classes. [2025-02-08 08:44:56,420 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:44:56,421 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:44:56,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:56,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:44:56,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:56,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421985101] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:56,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:56,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2025-02-08 08:44:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424220913] [2025-02-08 08:44:56,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:56,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:44:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:56,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:44:56,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:44:56,509 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:56,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 102 transitions, 1608 flow. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 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 08:44:56,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:56,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:56,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:56,676 INFO L124 PetriNetUnfolderBase]: 268/557 cut-off events. [2025-02-08 08:44:56,676 INFO L125 PetriNetUnfolderBase]: For 5414/5414 co-relation queries the response was YES. [2025-02-08 08:44:56,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3248 conditions, 557 events. 268/557 cut-off events. For 5414/5414 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2542 event pairs, 60 based on Foata normal form. 4/561 useless extension candidates. Maximal degree in co-relation 3205. Up to 232 conditions per place. [2025-02-08 08:44:56,679 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 103 selfloop transitions, 40 changer transitions 0/144 dead transitions. [2025-02-08 08:44:56,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 144 transitions, 2087 flow [2025-02-08 08:44:56,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-08 08:44:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-02-08 08:44:56,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 144 transitions. [2025-02-08 08:44:56,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375 [2025-02-08 08:44:56,679 INFO L175 Difference]: Start difference. First operand has 154 places, 102 transitions, 1608 flow. Second operand 16 states and 144 transitions. [2025-02-08 08:44:56,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 144 transitions, 2087 flow [2025-02-08 08:44:56,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 144 transitions, 1820 flow, removed 11 selfloop flow, removed 16 redundant places. [2025-02-08 08:44:56,691 INFO L231 Difference]: Finished difference. Result has 148 places, 106 transitions, 1494 flow [2025-02-08 08:44:56,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1494, PETRI_PLACES=148, PETRI_TRANSITIONS=106} [2025-02-08 08:44:56,691 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 122 predicate places. [2025-02-08 08:44:56,691 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 106 transitions, 1494 flow [2025-02-08 08:44:56,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 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 08:44:56,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:56,692 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:56,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:56,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,37 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:56,896 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:56,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1410639725, now seen corresponding path program 31 times [2025-02-08 08:44:56,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:56,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327389768] [2025-02-08 08:44:56,897 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:56,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:44:56,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:44:56,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:56,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327389768] [2025-02-08 08:44:56,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327389768] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:56,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123212184] [2025-02-08 08:44:56,919 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:44:56,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:56,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:56,921 INFO L229 MonitoredProcess]: Starting monitored process 38 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 08:44:56,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-02-08 08:44:56,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:44:56,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:44:56,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:44:56,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:56,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:44:56,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:56,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:56,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123212184] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:56,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:56,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2025-02-08 08:44:56,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933793269] [2025-02-08 08:44:56,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:56,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 08:44:56,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:56,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 08:44:56,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-08 08:44:56,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:56,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 106 transitions, 1494 flow. Second operand has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 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 08:44:56,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:56,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:56,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:57,107 INFO L124 PetriNetUnfolderBase]: 255/527 cut-off events. [2025-02-08 08:44:57,107 INFO L125 PetriNetUnfolderBase]: For 4091/4091 co-relation queries the response was YES. [2025-02-08 08:44:57,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2954 conditions, 527 events. 255/527 cut-off events. For 4091/4091 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2329 event pairs, 73 based on Foata normal form. 4/531 useless extension candidates. Maximal degree in co-relation 2912. Up to 264 conditions per place. [2025-02-08 08:44:57,110 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 90 selfloop transitions, 23 changer transitions 4/118 dead transitions. [2025-02-08 08:44:57,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 118 transitions, 1739 flow [2025-02-08 08:44:57,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:44:57,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:44:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 79 transitions. [2025-02-08 08:44:57,111 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36574074074074076 [2025-02-08 08:44:57,111 INFO L175 Difference]: Start difference. First operand has 148 places, 106 transitions, 1494 flow. Second operand 9 states and 79 transitions. [2025-02-08 08:44:57,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 118 transitions, 1739 flow [2025-02-08 08:44:57,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 118 transitions, 1633 flow, removed 22 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:57,122 INFO L231 Difference]: Finished difference. Result has 148 places, 102 transitions, 1375 flow [2025-02-08 08:44:57,122 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1363, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1375, PETRI_PLACES=148, PETRI_TRANSITIONS=102} [2025-02-08 08:44:57,122 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 122 predicate places. [2025-02-08 08:44:57,123 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 102 transitions, 1375 flow [2025-02-08 08:44:57,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.3) internal successors, (63), 10 states have internal predecessors, (63), 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 08:44:57,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:57,123 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:57,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:57,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,38 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:57,324 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:57,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2005923996, now seen corresponding path program 32 times [2025-02-08 08:44:57,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613985620] [2025-02-08 08:44:57,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:57,326 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-02-08 08:44:57,327 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:44:57,327 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:57,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:57,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:57,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613985620] [2025-02-08 08:44:57,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613985620] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:57,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102782977] [2025-02-08 08:44:57,349 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:44:57,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:57,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:57,351 INFO L229 MonitoredProcess]: Starting monitored process 39 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 08:44:57,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-02-08 08:44:57,375 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 2 equivalence classes. [2025-02-08 08:44:57,382 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:44:57,383 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:44:57,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:57,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 08:44:57,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:57,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:57,394 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:57,430 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:57,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102782977] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:57,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:57,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2025-02-08 08:44:57,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882734523] [2025-02-08 08:44:57,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:57,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:44:57,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:57,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:44:57,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:44:57,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:57,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 102 transitions, 1375 flow. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:57,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:57,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:57,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:57,610 INFO L124 PetriNetUnfolderBase]: 318/670 cut-off events. [2025-02-08 08:44:57,610 INFO L125 PetriNetUnfolderBase]: For 5461/5461 co-relation queries the response was YES. [2025-02-08 08:44:57,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3702 conditions, 670 events. 318/670 cut-off events. For 5461/5461 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3209 event pairs, 83 based on Foata normal form. 18/688 useless extension candidates. Maximal degree in co-relation 3661. Up to 291 conditions per place. [2025-02-08 08:44:57,613 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 107 selfloop transitions, 44 changer transitions 10/162 dead transitions. [2025-02-08 08:44:57,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 162 transitions, 2299 flow [2025-02-08 08:44:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:44:57,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:44:57,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 134 transitions. [2025-02-08 08:44:57,613 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39880952380952384 [2025-02-08 08:44:57,613 INFO L175 Difference]: Start difference. First operand has 148 places, 102 transitions, 1375 flow. Second operand 14 states and 134 transitions. [2025-02-08 08:44:57,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 162 transitions, 2299 flow [2025-02-08 08:44:57,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 162 transitions, 2191 flow, removed 20 selfloop flow, removed 7 redundant places. [2025-02-08 08:44:57,626 INFO L231 Difference]: Finished difference. Result has 158 places, 120 transitions, 1695 flow [2025-02-08 08:44:57,626 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1695, PETRI_PLACES=158, PETRI_TRANSITIONS=120} [2025-02-08 08:44:57,626 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 132 predicate places. [2025-02-08 08:44:57,626 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 120 transitions, 1695 flow [2025-02-08 08:44:57,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:44:57,626 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:57,626 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:57,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:57,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2025-02-08 08:44:57,827 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:57,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:57,827 INFO L85 PathProgramCache]: Analyzing trace with hash -952256309, now seen corresponding path program 33 times [2025-02-08 08:44:57,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:57,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890182404] [2025-02-08 08:44:57,827 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:57,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:57,830 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:44:57,831 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:44:57,831 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:57,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:57,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:57,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:57,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890182404] [2025-02-08 08:44:57,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890182404] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:57,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010689822] [2025-02-08 08:44:57,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:44:57,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:57,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:57,935 INFO L229 MonitoredProcess]: Starting monitored process 40 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 08:44:57,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-02-08 08:44:57,964 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:44:57,973 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:44:57,973 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:44:57,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:57,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:44:57,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:58,069 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:58,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010689822] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:58,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:58,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2025-02-08 08:44:58,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140907680] [2025-02-08 08:44:58,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:58,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 08:44:58,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:58,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 08:44:58,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:44:58,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:58,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 120 transitions, 1695 flow. Second operand has 28 states, 28 states have (on average 5.5) internal successors, (154), 28 states have internal predecessors, (154), 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 08:44:58,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:58,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:58,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:58,499 INFO L124 PetriNetUnfolderBase]: 345/726 cut-off events. [2025-02-08 08:44:58,499 INFO L125 PetriNetUnfolderBase]: For 5236/5236 co-relation queries the response was YES. [2025-02-08 08:44:58,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 726 events. 345/726 cut-off events. For 5236/5236 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3586 event pairs, 12 based on Foata normal form. 5/731 useless extension candidates. Maximal degree in co-relation 3996. Up to 158 conditions per place. [2025-02-08 08:44:58,502 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 55 selfloop transitions, 34 changer transitions 72/162 dead transitions. [2025-02-08 08:44:58,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 162 transitions, 2302 flow [2025-02-08 08:44:58,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-08 08:44:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-08 08:44:58,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 128 transitions. [2025-02-08 08:44:58,503 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35555555555555557 [2025-02-08 08:44:58,503 INFO L175 Difference]: Start difference. First operand has 158 places, 120 transitions, 1695 flow. Second operand 15 states and 128 transitions. [2025-02-08 08:44:58,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 162 transitions, 2302 flow [2025-02-08 08:44:58,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 162 transitions, 2236 flow, removed 24 selfloop flow, removed 4 redundant places. [2025-02-08 08:44:58,530 INFO L231 Difference]: Finished difference. Result has 171 places, 76 transitions, 1091 flow [2025-02-08 08:44:58,530 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1633, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1091, PETRI_PLACES=171, PETRI_TRANSITIONS=76} [2025-02-08 08:44:58,530 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 145 predicate places. [2025-02-08 08:44:58,530 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 76 transitions, 1091 flow [2025-02-08 08:44:58,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.5) internal successors, (154), 28 states have internal predecessors, (154), 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 08:44:58,530 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:58,531 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:58,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2025-02-08 08:44:58,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,40 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:58,731 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:58,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:58,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2136026405, now seen corresponding path program 34 times [2025-02-08 08:44:58,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:58,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307163368] [2025-02-08 08:44:58,732 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:58,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:58,734 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:44:58,739 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:44:58,739 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:58,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:58,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:58,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307163368] [2025-02-08 08:44:58,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307163368] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:58,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658906347] [2025-02-08 08:44:58,834 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:44:58,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:58,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:58,837 INFO L229 MonitoredProcess]: Starting monitored process 41 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 08:44:58,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-02-08 08:44:58,862 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:44:58,871 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:44:58,871 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:44:58,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:58,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:44:58,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:44:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:58,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:44:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:44:59,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658906347] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:44:59,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:44:59,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 28 [2025-02-08 08:44:59,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981038491] [2025-02-08 08:44:59,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:44:59,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-02-08 08:44:59,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:44:59,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-02-08 08:44:59,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2025-02-08 08:44:59,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:44:59,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 76 transitions, 1091 flow. Second operand has 29 states, 29 states have (on average 5.379310344827586) internal successors, (156), 29 states have internal predecessors, (156), 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 08:44:59,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:44:59,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:44:59,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:44:59,719 INFO L124 PetriNetUnfolderBase]: 182/406 cut-off events. [2025-02-08 08:44:59,719 INFO L125 PetriNetUnfolderBase]: For 3085/3085 co-relation queries the response was YES. [2025-02-08 08:44:59,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2326 conditions, 406 events. 182/406 cut-off events. For 3085/3085 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1733 event pairs, 1 based on Foata normal form. 3/409 useless extension candidates. Maximal degree in co-relation 2276. Up to 92 conditions per place. [2025-02-08 08:44:59,720 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 53 selfloop transitions, 51 changer transitions 24/129 dead transitions. [2025-02-08 08:44:59,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 129 transitions, 1579 flow [2025-02-08 08:44:59,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-02-08 08:44:59,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-02-08 08:44:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 210 transitions. [2025-02-08 08:44:59,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3125 [2025-02-08 08:44:59,721 INFO L175 Difference]: Start difference. First operand has 171 places, 76 transitions, 1091 flow. Second operand 28 states and 210 transitions. [2025-02-08 08:44:59,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 129 transitions, 1579 flow [2025-02-08 08:44:59,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 129 transitions, 1327 flow, removed 19 selfloop flow, removed 25 redundant places. [2025-02-08 08:44:59,728 INFO L231 Difference]: Finished difference. Result has 157 places, 73 transitions, 921 flow [2025-02-08 08:44:59,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=873, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=921, PETRI_PLACES=157, PETRI_TRANSITIONS=73} [2025-02-08 08:44:59,728 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 131 predicate places. [2025-02-08 08:44:59,728 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 73 transitions, 921 flow [2025-02-08 08:44:59,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 5.379310344827586) internal successors, (156), 29 states have internal predecessors, (156), 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 08:44:59,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:44:59,729 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:44:59,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2025-02-08 08:44:59,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2025-02-08 08:44:59,933 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:44:59,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:44:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash 197366363, now seen corresponding path program 35 times [2025-02-08 08:44:59,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:44:59,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112406879] [2025-02-08 08:44:59,934 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:59,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:44:59,936 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 21 statements into 3 equivalence classes. [2025-02-08 08:44:59,937 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:44:59,937 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-02-08 08:44:59,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:44:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 08:44:59,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:44:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112406879] [2025-02-08 08:44:59,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112406879] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:44:59,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350381460] [2025-02-08 08:44:59,985 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:44:59,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:44:59,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:44:59,987 INFO L229 MonitoredProcess]: Starting monitored process 42 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 08:44:59,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-02-08 08:45:00,009 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 21 statements into 3 equivalence classes. [2025-02-08 08:45:00,017 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:00,017 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-02-08 08:45:00,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:00,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-08 08:45:00,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 08:45:00,072 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:45:00,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350381460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:45:00,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-08 08:45:00,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2025-02-08 08:45:00,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047191841] [2025-02-08 08:45:00,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:45:00,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-08 08:45:00,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:00,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-08 08:45:00,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:45:00,077 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:45:00,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 73 transitions, 921 flow. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 08:45:00,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:00,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:45:00,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:00,145 INFO L124 PetriNetUnfolderBase]: 160/354 cut-off events. [2025-02-08 08:45:00,145 INFO L125 PetriNetUnfolderBase]: For 1865/1865 co-relation queries the response was YES. [2025-02-08 08:45:00,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1887 conditions, 354 events. 160/354 cut-off events. For 1865/1865 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1409 event pairs, 18 based on Foata normal form. 1/355 useless extension candidates. Maximal degree in co-relation 1848. Up to 103 conditions per place. [2025-02-08 08:45:00,147 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 41 selfloop transitions, 18 changer transitions 28/88 dead transitions. [2025-02-08 08:45:00,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 88 transitions, 1129 flow [2025-02-08 08:45:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:45:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:45:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 80 transitions. [2025-02-08 08:45:00,148 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37037037037037035 [2025-02-08 08:45:00,151 INFO L175 Difference]: Start difference. First operand has 157 places, 73 transitions, 921 flow. Second operand 9 states and 80 transitions. [2025-02-08 08:45:00,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 88 transitions, 1129 flow [2025-02-08 08:45:00,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 88 transitions, 959 flow, removed 7 selfloop flow, removed 24 redundant places. [2025-02-08 08:45:00,159 INFO L231 Difference]: Finished difference. Result has 130 places, 53 transitions, 549 flow [2025-02-08 08:45:00,159 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=549, PETRI_PLACES=130, PETRI_TRANSITIONS=53} [2025-02-08 08:45:00,159 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 104 predicate places. [2025-02-08 08:45:00,159 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 53 transitions, 549 flow [2025-02-08 08:45:00,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 08:45:00,160 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:00,160 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:00,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2025-02-08 08:45:00,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,42 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:00,361 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:00,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:00,362 INFO L85 PathProgramCache]: Analyzing trace with hash -769415493, now seen corresponding path program 36 times [2025-02-08 08:45:00,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:00,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514654472] [2025-02-08 08:45:00,362 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:45:00,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:00,365 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 21 statements into 4 equivalence classes. [2025-02-08 08:45:00,368 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:00,368 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-02-08 08:45:00,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:45:00,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:00,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514654472] [2025-02-08 08:45:00,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514654472] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:00,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416145337] [2025-02-08 08:45:00,472 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:45:00,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:00,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:00,474 INFO L229 MonitoredProcess]: Starting monitored process 43 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 08:45:00,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-02-08 08:45:00,495 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 21 statements into 4 equivalence classes. [2025-02-08 08:45:00,503 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:00,503 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-02-08 08:45:00,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:00,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:45:00,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:00,567 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 08:45:00,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:00,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:00,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416145337] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:00,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:00,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 23 [2025-02-08 08:45:00,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954135226] [2025-02-08 08:45:00,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:00,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-08 08:45:00,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:00,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-08 08:45:00,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2025-02-08 08:45:00,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:45:00,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 53 transitions, 549 flow. Second operand has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 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 08:45:00,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:00,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:45:00,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:01,141 INFO L124 PetriNetUnfolderBase]: 121/290 cut-off events. [2025-02-08 08:45:01,142 INFO L125 PetriNetUnfolderBase]: For 1134/1134 co-relation queries the response was YES. [2025-02-08 08:45:01,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1344 conditions, 290 events. 121/290 cut-off events. For 1134/1134 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1093 event pairs, 3 based on Foata normal form. 1/291 useless extension candidates. Maximal degree in co-relation 1308. Up to 68 conditions per place. [2025-02-08 08:45:01,143 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 52 selfloop transitions, 23 changer transitions 26/102 dead transitions. [2025-02-08 08:45:01,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 102 transitions, 957 flow [2025-02-08 08:45:01,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 08:45:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 08:45:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 169 transitions. [2025-02-08 08:45:01,144 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3353174603174603 [2025-02-08 08:45:01,144 INFO L175 Difference]: Start difference. First operand has 130 places, 53 transitions, 549 flow. Second operand 21 states and 169 transitions. [2025-02-08 08:45:01,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 102 transitions, 957 flow [2025-02-08 08:45:01,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 102 transitions, 810 flow, removed 12 selfloop flow, removed 23 redundant places. [2025-02-08 08:45:01,147 INFO L231 Difference]: Finished difference. Result has 117 places, 45 transitions, 405 flow [2025-02-08 08:45:01,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=405, PETRI_PLACES=117, PETRI_TRANSITIONS=45} [2025-02-08 08:45:01,149 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 91 predicate places. [2025-02-08 08:45:01,149 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 45 transitions, 405 flow [2025-02-08 08:45:01,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 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 08:45:01,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:01,149 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:01,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2025-02-08 08:45:01,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2025-02-08 08:45:01,353 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:01,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:01,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1683604059, now seen corresponding path program 37 times [2025-02-08 08:45:01,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:01,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213218664] [2025-02-08 08:45:01,353 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:45:01,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:01,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:45:01,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:01,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:01,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:01,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:01,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213218664] [2025-02-08 08:45:01,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213218664] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:01,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828672329] [2025-02-08 08:45:01,440 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:45:01,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:01,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:01,443 INFO L229 MonitoredProcess]: Starting monitored process 44 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 08:45:01,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2025-02-08 08:45:01,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:45:01,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:01,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:45:01,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:01,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:45:01,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:01,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:01,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828672329] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:01,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:01,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2025-02-08 08:45:01,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416614417] [2025-02-08 08:45:01,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:01,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 08:45:01,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:01,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 08:45:01,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:45:01,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:45:01,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 45 transitions, 405 flow. Second operand has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 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 08:45:01,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:01,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:45:01,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:01,959 INFO L124 PetriNetUnfolderBase]: 84/206 cut-off events. [2025-02-08 08:45:01,960 INFO L125 PetriNetUnfolderBase]: For 644/644 co-relation queries the response was YES. [2025-02-08 08:45:01,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 206 events. 84/206 cut-off events. For 644/644 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 671 event pairs, 7 based on Foata normal form. 2/208 useless extension candidates. Maximal degree in co-relation 837. Up to 48 conditions per place. [2025-02-08 08:45:01,960 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 25 selfloop transitions, 12 changer transitions 28/66 dead transitions. [2025-02-08 08:45:01,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 66 transitions, 581 flow [2025-02-08 08:45:01,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:45:01,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:45:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 109 transitions. [2025-02-08 08:45:01,961 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3244047619047619 [2025-02-08 08:45:01,961 INFO L175 Difference]: Start difference. First operand has 117 places, 45 transitions, 405 flow. Second operand 14 states and 109 transitions. [2025-02-08 08:45:01,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 66 transitions, 581 flow [2025-02-08 08:45:01,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 66 transitions, 509 flow, removed 6 selfloop flow, removed 21 redundant places. [2025-02-08 08:45:01,963 INFO L231 Difference]: Finished difference. Result has 99 places, 26 transitions, 187 flow [2025-02-08 08:45:01,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=187, PETRI_PLACES=99, PETRI_TRANSITIONS=26} [2025-02-08 08:45:01,963 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 73 predicate places. [2025-02-08 08:45:01,963 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 26 transitions, 187 flow [2025-02-08 08:45:01,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.428571428571429) internal successors, (152), 28 states have internal predecessors, (152), 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 08:45:01,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:01,964 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:01,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2025-02-08 08:45:02,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,44 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:02,168 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:02,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:02,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1606759625, now seen corresponding path program 38 times [2025-02-08 08:45:02,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:02,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479579413] [2025-02-08 08:45:02,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:45:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:02,170 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:45:02,174 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:02,174 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:45:02,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:02,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479579413] [2025-02-08 08:45:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479579413] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:02,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550290652] [2025-02-08 08:45:02,252 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:45:02,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:02,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:02,254 INFO L229 MonitoredProcess]: Starting monitored process 45 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 08:45:02,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2025-02-08 08:45:02,279 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:45:02,287 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:02,287 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:45:02,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:02,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:45:02,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:02,401 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:02,402 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:02,567 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:02,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550290652] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:02,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:02,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2025-02-08 08:45:02,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734398158] [2025-02-08 08:45:02,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:02,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 08:45:02,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:02,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 08:45:02,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=619, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:45:02,576 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:45:02,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 26 transitions, 187 flow. Second operand has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 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 08:45:02,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:02,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:45:02,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:02,786 INFO L124 PetriNetUnfolderBase]: 39/97 cut-off events. [2025-02-08 08:45:02,787 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2025-02-08 08:45:02,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 97 events. 39/97 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 207 event pairs, 2 based on Foata normal form. 1/98 useless extension candidates. Maximal degree in co-relation 365. Up to 23 conditions per place. [2025-02-08 08:45:02,787 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 22 selfloop transitions, 10 changer transitions 11/44 dead transitions. [2025-02-08 08:45:02,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 44 transitions, 312 flow [2025-02-08 08:45:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:45:02,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:45:02,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 100 transitions. [2025-02-08 08:45:02,788 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2976190476190476 [2025-02-08 08:45:02,788 INFO L175 Difference]: Start difference. First operand has 99 places, 26 transitions, 187 flow. Second operand 14 states and 100 transitions. [2025-02-08 08:45:02,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 44 transitions, 312 flow [2025-02-08 08:45:02,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 44 transitions, 219 flow, removed 12 selfloop flow, removed 33 redundant places. [2025-02-08 08:45:02,789 INFO L231 Difference]: Finished difference. Result has 63 places, 23 transitions, 101 flow [2025-02-08 08:45:02,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=101, PETRI_PLACES=63, PETRI_TRANSITIONS=23} [2025-02-08 08:45:02,789 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 37 predicate places. [2025-02-08 08:45:02,789 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 23 transitions, 101 flow [2025-02-08 08:45:02,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 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 08:45:02,789 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:45:02,789 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:45:02,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2025-02-08 08:45:02,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,45 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:02,994 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:45:02,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:45:02,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1778279543, now seen corresponding path program 39 times [2025-02-08 08:45:02,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:45:02,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590877276] [2025-02-08 08:45:02,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:45:02,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:45:02,996 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 3 equivalence classes. [2025-02-08 08:45:02,999 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:02,999 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 08:45:02,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:03,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:45:03,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590877276] [2025-02-08 08:45:03,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590877276] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:45:03,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454406529] [2025-02-08 08:45:03,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:45:03,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:45:03,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:45:03,091 INFO L229 MonitoredProcess]: Starting monitored process 46 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 08:45:03,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2025-02-08 08:45:03,111 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 3 equivalence classes. [2025-02-08 08:45:03,119 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:45:03,119 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 08:45:03,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:45:03,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 08:45:03,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:45:03,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:03,205 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:45:03,388 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:45:03,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454406529] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:45:03,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:45:03,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2025-02-08 08:45:03,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890421610] [2025-02-08 08:45:03,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:45:03,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-08 08:45:03,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:45:03,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-08 08:45:03,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2025-02-08 08:45:03,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 24 [2025-02-08 08:45:03,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 23 transitions, 101 flow. Second operand has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 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 08:45:03,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:45:03,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 24 [2025-02-08 08:45:03,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:45:03,600 INFO L124 PetriNetUnfolderBase]: 26/64 cut-off events. [2025-02-08 08:45:03,600 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-02-08 08:45:03,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 64 events. 26/64 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 1/65 useless extension candidates. Maximal degree in co-relation 200. Up to 20 conditions per place. [2025-02-08 08:45:03,600 INFO L140 encePairwiseOnDemand]: 14/24 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2025-02-08 08:45:03,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 33 transitions, 185 flow [2025-02-08 08:45:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:45:03,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:45:03,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 86 transitions. [2025-02-08 08:45:03,601 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27564102564102566 [2025-02-08 08:45:03,601 INFO L175 Difference]: Start difference. First operand has 63 places, 23 transitions, 101 flow. Second operand 13 states and 86 transitions. [2025-02-08 08:45:03,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 33 transitions, 185 flow [2025-02-08 08:45:03,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 33 transitions, 166 flow, removed 0 selfloop flow, removed 10 redundant places. [2025-02-08 08:45:03,602 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-02-08 08:45:03,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-02-08 08:45:03,602 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 30 predicate places. [2025-02-08 08:45:03,602 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-02-08 08:45:03,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.392857142857143) internal successors, (151), 28 states have internal predecessors, (151), 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 08:45:03,604 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-08 08:45:03,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-08 08:45:03,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-08 08:45:03,605 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-08 08:45:03,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2025-02-08 08:45:03,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2025-02-08 08:45:03,809 INFO L422 BasicCegarLoop]: Path program histogram: [39, 16, 6, 6] [2025-02-08 08:45:03,811 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:45:03,812 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:45:03,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:45:03 BasicIcfg [2025-02-08 08:45:03,815 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:45:03,815 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:45:03,815 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:45:03,816 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:45:03,816 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:44:17" (3/4) ... [2025-02-08 08:45:03,817 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:45:03,819 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 08:45:03,819 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 08:45:03,822 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2025-02-08 08:45:03,822 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-08 08:45:03,822 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-08 08:45:03,822 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 08:45:03,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:45:03,870 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:45:03,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:45:03,871 INFO L158 Benchmark]: Toolchain (without parser) took 47271.01ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 110.6MB in the beginning and 601.6MB in the end (delta: -491.1MB). Peak memory consumption was 55.0MB. Max. memory is 16.1GB. [2025-02-08 08:45:03,872 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:45:03,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 152.87ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 99.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:45:03,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.09ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:45:03,872 INFO L158 Benchmark]: Boogie Preprocessor took 21.72ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:45:03,873 INFO L158 Benchmark]: IcfgBuilder took 291.97ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 76.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:45:03,873 INFO L158 Benchmark]: TraceAbstraction took 46724.77ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 76.9MB in the beginning and 609.0MB in the end (delta: -532.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2025-02-08 08:45:03,873 INFO L158 Benchmark]: Witness Printer took 55.14ms. Allocated memory is still 687.9MB. Free memory was 606.1MB in the beginning and 601.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:45:03,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 152.87ms. Allocated memory is still 142.6MB. Free memory was 110.6MB in the beginning and 99.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.09ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 97.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.72ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 96.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 291.97ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 76.9MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 46724.77ms. Allocated memory was 142.6MB in the beginning and 687.9MB in the end (delta: 545.3MB). Free memory was 76.9MB in the beginning and 609.0MB in the end (delta: -532.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 55.14ms. Allocated memory is still 687.9MB. Free memory was 606.1MB in the beginning and 601.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 46.6s, OverallIterations: 67, TraceHistogramMax: 2, PathProgramHistogramMax: 39, EmptinessCheckTime: 0.0s, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3699 SdHoareTripleChecker+Valid, 10.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3616 mSDsluCounter, 743 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 646 mSDsCounter, 786 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24938 IncrementalHoareTripleChecker+Invalid, 25724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 786 mSolverCounterUnsat, 97 mSDtfsCounter, 24938 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2573 GetRequests, 1224 SyntacticMatches, 12 SemanticMatches, 1337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9351 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3965occurred in iteration=38, InterpolantAutomatonStates: 841, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 2112 NumberOfCodeBlocks, 2112 NumberOfCodeBlocksAsserted, 202 NumberOfCheckSat, 2711 ConstructedInterpolants, 0 QuantifiedInterpolants, 15316 SizeOfPredicates, 141 NumberOfNonLiveVariables, 4443 ConjunctsInSsa, 552 ConjunctsInUnsatCore, 151 InterpolantComputations, 34 PerfectInterpolantSequences, 94/446 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:45:03,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE