./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread/triangular-longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread/triangular-longer-1.i -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 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:34:58,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:34:58,913 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:34:58,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:34:58,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:34:58,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:34:58,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:34:58,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:34:58,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:34:58,935 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:34:58,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:34:58,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:34:58,936 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:34:58,936 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:34:58,937 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:34:58,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:34:58,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:34:58,937 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 -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2025-02-06 12:34:59,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:34:59,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:34:59,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:34:59,171 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:34:59,171 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:34:59,172 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-1.i [2025-02-06 12:35:00,309 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/497900fd9/0d2e3e395aa34eb08a5c21288916575e/FLAG8fd80d574 [2025-02-06 12:35:00,634 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:35:00,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2025-02-06 12:35:00,653 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/497900fd9/0d2e3e395aa34eb08a5c21288916575e/FLAG8fd80d574 [2025-02-06 12:35:00,886 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/497900fd9/0d2e3e395aa34eb08a5c21288916575e [2025-02-06 12:35:00,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:35:00,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:35:00,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:35:00,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:35:00,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:35:00,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:00" (1/1) ... [2025-02-06 12:35:00,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d4705a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:00, skipping insertion in model container [2025-02-06 12:35:00,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:35:00" (1/1) ... [2025-02-06 12:35:00,926 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:35:01,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:35:01,197 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:35:01,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:35:01,265 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:35:01,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01 WrapperNode [2025-02-06 12:35:01,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:35:01,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:35:01,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:35:01,268 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:35:01,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,306 INFO L138 Inliner]: procedures = 168, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2025-02-06 12:35:01,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:35:01,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:35:01,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:35:01,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:35:01,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,318 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,327 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]. [2025-02-06 12:35:01,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,330 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:35:01,338 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:35:01,338 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:35:01,338 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:35:01,339 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (1/1) ... [2025-02-06 12:35:01,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:35:01,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:01,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:35:01,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:35:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2025-02-06 12:35:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2025-02-06 12:35:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2025-02-06 12:35:01,387 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2025-02-06 12:35:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:35:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:35:01,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:35:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:35:01,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:35:01,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:35:01,389 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:35:01,489 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:35:01,490 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:35:01,598 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:35:01,598 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:35:01,661 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:35:01,661 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:35:01,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:01 BoogieIcfgContainer [2025-02-06 12:35:01,662 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:35:01,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:35:01,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:35:01,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:35:01,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:35:00" (1/3) ... [2025-02-06 12:35:01,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c96118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:01, skipping insertion in model container [2025-02-06 12:35:01,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:35:01" (2/3) ... [2025-02-06 12:35:01,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c96118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:35:01, skipping insertion in model container [2025-02-06 12:35:01,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:01" (3/3) ... [2025-02-06 12:35:01,675 INFO L128 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2025-02-06 12:35:01,688 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:35:01,690 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG triangular-longer-1.i that has 3 procedures, 26 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-02-06 12:35:01,690 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:35:01,731 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:35:01,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 66 flow [2025-02-06 12:35:01,787 INFO L124 PetriNetUnfolderBase]: 4/27 cut-off events. [2025-02-06 12:35:01,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:01,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 4/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-06 12:35:01,794 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 29 transitions, 66 flow [2025-02-06 12:35:01,796 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 27 transitions, 60 flow [2025-02-06 12:35:01,803 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:35:01,814 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;@2c59cb5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:35:01,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-06 12:35:01,823 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:35:01,823 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2025-02-06 12:35:01,824 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:01,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:01,824 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:01,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:01,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:01,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1499979287, now seen corresponding path program 1 times [2025-02-06 12:35:01,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:01,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704869239] [2025-02-06 12:35:01,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:01,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:35:01,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:35:01,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:01,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:02,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:02,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704869239] [2025-02-06 12:35:02,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704869239] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:02,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:02,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:35:02,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365810013] [2025-02-06 12:35:02,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:02,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:35:02,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:02,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:35:02,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:35:02,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:02,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:02,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:02,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:02,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:02,152 INFO L124 PetriNetUnfolderBase]: 185/363 cut-off events. [2025-02-06 12:35:02,152 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 12:35:02,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 363 events. 185/363 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1602 event pairs, 135 based on Foata normal form. 32/390 useless extension candidates. Maximal degree in co-relation 657. Up to 290 conditions per place. [2025-02-06 12:35:02,155 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 15 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2025-02-06 12:35:02,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 23 transitions, 86 flow [2025-02-06 12:35:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:35:02,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:35:02,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2025-02-06 12:35:02,163 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2025-02-06 12:35:02,164 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 60 flow. Second operand 3 states and 44 transitions. [2025-02-06 12:35:02,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 23 transitions, 86 flow [2025-02-06 12:35:02,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:35:02,167 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 50 flow [2025-02-06 12:35:02,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2025-02-06 12:35:02,177 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2025-02-06 12:35:02,177 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 50 flow [2025-02-06 12:35:02,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:02,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:02,177 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:02,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:35:02,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:02,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:02,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1499979786, now seen corresponding path program 1 times [2025-02-06 12:35:02,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:02,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908370131] [2025-02-06 12:35:02,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:02,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:02,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:35:02,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:35:02,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:02,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:02,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:02,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:02,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908370131] [2025-02-06 12:35:02,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908370131] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:02,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:02,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:35:02,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931381080] [2025-02-06 12:35:02,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:02,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:35:02,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:02,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:35:02,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:35:02,391 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:02,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:02,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:02,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:02,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:02,563 INFO L124 PetriNetUnfolderBase]: 273/491 cut-off events. [2025-02-06 12:35:02,563 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:35:02,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 491 events. 273/491 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2024 event pairs, 45 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 925. Up to 181 conditions per place. [2025-02-06 12:35:02,566 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 25 selfloop transitions, 4 changer transitions 21/54 dead transitions. [2025-02-06 12:35:02,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 54 transitions, 212 flow [2025-02-06 12:35:02,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:35:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:35:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2025-02-06 12:35:02,567 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5689655172413793 [2025-02-06 12:35:02,567 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 6 states and 99 transitions. [2025-02-06 12:35:02,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 54 transitions, 212 flow [2025-02-06 12:35:02,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 54 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:35:02,571 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 74 flow [2025-02-06 12:35:02,571 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2025-02-06 12:35:02,571 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2025-02-06 12:35:02,572 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 74 flow [2025-02-06 12:35:02,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:02,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:02,572 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:02,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:35:02,572 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:02,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:02,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1591607260, now seen corresponding path program 1 times [2025-02-06 12:35:02,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:02,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731826657] [2025-02-06 12:35:02,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:02,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:02,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:35:02,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:35:02,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:02,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:02,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:02,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731826657] [2025-02-06 12:35:02,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731826657] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:02,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:02,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:35:02,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629081601] [2025-02-06 12:35:02,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:02,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:35:02,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:02,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:35:02,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:35:02,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:02,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:02,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:02,722 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:02,722 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:02,905 INFO L124 PetriNetUnfolderBase]: 382/707 cut-off events. [2025-02-06 12:35:02,906 INFO L125 PetriNetUnfolderBase]: For 285/291 co-relation queries the response was YES. [2025-02-06 12:35:02,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 707 events. 382/707 cut-off events. For 285/291 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3107 event pairs, 65 based on Foata normal form. 33/739 useless extension candidates. Maximal degree in co-relation 1594. Up to 246 conditions per place. [2025-02-06 12:35:02,911 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 9 changer transitions 20/79 dead transitions. [2025-02-06 12:35:02,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 79 transitions, 382 flow [2025-02-06 12:35:02,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:35:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:35:02,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 144 transitions. [2025-02-06 12:35:02,914 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2025-02-06 12:35:02,914 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 74 flow. Second operand 9 states and 144 transitions. [2025-02-06 12:35:02,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 79 transitions, 382 flow [2025-02-06 12:35:02,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 79 transitions, 366 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-06 12:35:02,919 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 159 flow [2025-02-06 12:35:02,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=159, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2025-02-06 12:35:02,920 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 14 predicate places. [2025-02-06 12:35:02,920 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 159 flow [2025-02-06 12:35:02,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:02,920 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:02,921 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:02,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:35:02,921 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:02,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:02,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1595175136, now seen corresponding path program 2 times [2025-02-06 12:35:02,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:02,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752457302] [2025-02-06 12:35:02,921 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:02,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:02,928 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:35:02,936 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:35:02,937 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:35:02,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:03,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:03,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:03,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752457302] [2025-02-06 12:35:03,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752457302] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:03,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:03,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:35:03,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202532107] [2025-02-06 12:35:03,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:03,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:35:03,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:03,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:35:03,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:35:03,037 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:03,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:03,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:03,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:03,208 INFO L124 PetriNetUnfolderBase]: 328/614 cut-off events. [2025-02-06 12:35:03,208 INFO L125 PetriNetUnfolderBase]: For 1001/1013 co-relation queries the response was YES. [2025-02-06 12:35:03,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1744 conditions, 614 events. 328/614 cut-off events. For 1001/1013 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2617 event pairs, 65 based on Foata normal form. 57/670 useless extension candidates. Maximal degree in co-relation 1726. Up to 234 conditions per place. [2025-02-06 12:35:03,210 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 38 selfloop transitions, 9 changer transitions 28/79 dead transitions. [2025-02-06 12:35:03,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 79 transitions, 499 flow [2025-02-06 12:35:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:35:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:35:03,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2025-02-06 12:35:03,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5474137931034483 [2025-02-06 12:35:03,212 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 159 flow. Second operand 8 states and 127 transitions. [2025-02-06 12:35:03,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 79 transitions, 499 flow [2025-02-06 12:35:03,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 79 transitions, 491 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-06 12:35:03,220 INFO L231 Difference]: Finished difference. Result has 51 places, 34 transitions, 213 flow [2025-02-06 12:35:03,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=213, PETRI_PLACES=51, PETRI_TRANSITIONS=34} [2025-02-06 12:35:03,221 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2025-02-06 12:35:03,221 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 34 transitions, 213 flow [2025-02-06 12:35:03,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,221 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:03,221 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:03,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:35:03,222 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:03,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:03,222 INFO L85 PathProgramCache]: Analyzing trace with hash 29952673, now seen corresponding path program 1 times [2025-02-06 12:35:03,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:03,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202983473] [2025-02-06 12:35:03,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:03,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:03,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 12:35:03,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 12:35:03,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:03,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:03,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:03,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202983473] [2025-02-06 12:35:03,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202983473] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:03,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:03,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:35:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510951187] [2025-02-06 12:35:03,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:03,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:35:03,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:03,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:35:03,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:35:03,327 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:03,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 34 transitions, 213 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:03,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:03,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:03,553 INFO L124 PetriNetUnfolderBase]: 337/626 cut-off events. [2025-02-06 12:35:03,553 INFO L125 PetriNetUnfolderBase]: For 1712/1724 co-relation queries the response was YES. [2025-02-06 12:35:03,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1952 conditions, 626 events. 337/626 cut-off events. For 1712/1724 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2657 event pairs, 68 based on Foata normal form. 30/655 useless extension candidates. Maximal degree in co-relation 1929. Up to 237 conditions per place. [2025-02-06 12:35:03,556 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 46 selfloop transitions, 16 changer transitions 24/90 dead transitions. [2025-02-06 12:35:03,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 90 transitions, 610 flow [2025-02-06 12:35:03,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 12:35:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 12:35:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 168 transitions. [2025-02-06 12:35:03,558 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5266457680250783 [2025-02-06 12:35:03,558 INFO L175 Difference]: Start difference. First operand has 51 places, 34 transitions, 213 flow. Second operand 11 states and 168 transitions. [2025-02-06 12:35:03,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 90 transitions, 610 flow [2025-02-06 12:35:03,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 90 transitions, 543 flow, removed 24 selfloop flow, removed 7 redundant places. [2025-02-06 12:35:03,563 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 282 flow [2025-02-06 12:35:03,563 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=282, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2025-02-06 12:35:03,564 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 26 predicate places. [2025-02-06 12:35:03,564 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 282 flow [2025-02-06 12:35:03,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,564 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:03,564 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:03,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:35:03,564 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:03,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1774460803, now seen corresponding path program 2 times [2025-02-06 12:35:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:03,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103689846] [2025-02-06 12:35:03,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:03,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:03,573 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 1 equivalence classes. [2025-02-06 12:35:03,575 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 12:35:03,576 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:35:03,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:03,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:03,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103689846] [2025-02-06 12:35:03,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103689846] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:03,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:03,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:35:03,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540965812] [2025-02-06 12:35:03,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:03,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:35:03,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:03,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:35:03,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:35:03,656 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:03,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 282 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:03,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:03,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:03,877 INFO L124 PetriNetUnfolderBase]: 508/938 cut-off events. [2025-02-06 12:35:03,878 INFO L125 PetriNetUnfolderBase]: For 3237/3255 co-relation queries the response was YES. [2025-02-06 12:35:03,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3083 conditions, 938 events. 508/938 cut-off events. For 3237/3255 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4321 event pairs, 53 based on Foata normal form. 45/980 useless extension candidates. Maximal degree in co-relation 3059. Up to 253 conditions per place. [2025-02-06 12:35:03,884 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 57 selfloop transitions, 20 changer transitions 23/104 dead transitions. [2025-02-06 12:35:03,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 104 transitions, 774 flow [2025-02-06 12:35:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 12:35:03,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 12:35:03,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 174 transitions. [2025-02-06 12:35:03,886 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2025-02-06 12:35:03,886 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 282 flow. Second operand 11 states and 174 transitions. [2025-02-06 12:35:03,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 104 transitions, 774 flow [2025-02-06 12:35:03,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 104 transitions, 708 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-02-06 12:35:03,893 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 379 flow [2025-02-06 12:35:03,893 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=379, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2025-02-06 12:35:03,894 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 37 predicate places. [2025-02-06 12:35:03,895 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 379 flow [2025-02-06 12:35:03,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:03,895 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:03,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:35:03,895 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:03,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1950453345, now seen corresponding path program 3 times [2025-02-06 12:35:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:03,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569166305] [2025-02-06 12:35:03,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:35:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:03,901 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 16 statements into 1 equivalence classes. [2025-02-06 12:35:03,904 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 12:35:03,905 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 12:35:03,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:03,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:03,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569166305] [2025-02-06 12:35:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569166305] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:03,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:03,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:35:03,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274432791] [2025-02-06 12:35:03,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:03,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:35:03,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:03,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:35:03,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:35:03,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:03,990 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 379 flow. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:03,990 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:03,990 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:03,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:04,187 INFO L124 PetriNetUnfolderBase]: 445/836 cut-off events. [2025-02-06 12:35:04,188 INFO L125 PetriNetUnfolderBase]: For 4864/4882 co-relation queries the response was YES. [2025-02-06 12:35:04,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3163 conditions, 836 events. 445/836 cut-off events. For 4864/4882 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3772 event pairs, 71 based on Foata normal form. 63/896 useless extension candidates. Maximal degree in co-relation 3134. Up to 223 conditions per place. [2025-02-06 12:35:04,191 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 44 selfloop transitions, 20 changer transitions 31/99 dead transitions. [2025-02-06 12:35:04,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 99 transitions, 899 flow [2025-02-06 12:35:04,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:35:04,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:35:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-02-06 12:35:04,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-02-06 12:35:04,193 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 379 flow. Second operand 10 states and 155 transitions. [2025-02-06 12:35:04,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 99 transitions, 899 flow [2025-02-06 12:35:04,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 99 transitions, 830 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-02-06 12:35:04,201 INFO L231 Difference]: Finished difference. Result has 73 places, 47 transitions, 427 flow [2025-02-06 12:35:04,201 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=427, PETRI_PLACES=73, PETRI_TRANSITIONS=47} [2025-02-06 12:35:04,202 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 43 predicate places. [2025-02-06 12:35:04,202 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 47 transitions, 427 flow [2025-02-06 12:35:04,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:04,202 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:04,202 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:04,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:35:04,202 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:04,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:04,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1345523814, now seen corresponding path program 1 times [2025-02-06 12:35:04,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:04,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260868454] [2025-02-06 12:35:04,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:04,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:04,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:35:04,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:35:04,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:04,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:04,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:04,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260868454] [2025-02-06 12:35:04,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260868454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:04,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:04,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:35:04,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649438680] [2025-02-06 12:35:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:04,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:35:04,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:04,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:35:04,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:35:04,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:04,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 47 transitions, 427 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:04,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:04,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:04,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:04,564 INFO L124 PetriNetUnfolderBase]: 454/845 cut-off events. [2025-02-06 12:35:04,564 INFO L125 PetriNetUnfolderBase]: For 5578/5596 co-relation queries the response was YES. [2025-02-06 12:35:04,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3316 conditions, 845 events. 454/845 cut-off events. For 5578/5596 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3810 event pairs, 59 based on Foata normal form. 36/878 useless extension candidates. Maximal degree in co-relation 3284. Up to 157 conditions per place. [2025-02-06 12:35:04,571 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 45 selfloop transitions, 26 changer transitions 23/98 dead transitions. [2025-02-06 12:35:04,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 98 transitions, 921 flow [2025-02-06 12:35:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:35:04,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:35:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 155 transitions. [2025-02-06 12:35:04,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2025-02-06 12:35:04,573 INFO L175 Difference]: Start difference. First operand has 73 places, 47 transitions, 427 flow. Second operand 10 states and 155 transitions. [2025-02-06 12:35:04,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 98 transitions, 921 flow [2025-02-06 12:35:04,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 98 transitions, 839 flow, removed 25 selfloop flow, removed 8 redundant places. [2025-02-06 12:35:04,588 INFO L231 Difference]: Finished difference. Result has 75 places, 50 transitions, 501 flow [2025-02-06 12:35:04,589 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=501, PETRI_PLACES=75, PETRI_TRANSITIONS=50} [2025-02-06 12:35:04,589 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 45 predicate places. [2025-02-06 12:35:04,589 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 50 transitions, 501 flow [2025-02-06 12:35:04,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:04,590 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:04,590 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:04,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:35:04,590 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:04,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:04,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1611396395, now seen corresponding path program 1 times [2025-02-06 12:35:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728670568] [2025-02-06 12:35:04,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:04,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:35:04,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:35:04,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:04,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:04,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:04,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728670568] [2025-02-06 12:35:04,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728670568] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:04,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:04,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:35:04,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013380801] [2025-02-06 12:35:04,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:04,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:35:04,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:04,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:35:04,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:35:04,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:04,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 50 transitions, 501 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:04,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:04,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:04,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:05,051 INFO L124 PetriNetUnfolderBase]: 490/917 cut-off events. [2025-02-06 12:35:05,051 INFO L125 PetriNetUnfolderBase]: For 7027/7045 co-relation queries the response was YES. [2025-02-06 12:35:05,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3767 conditions, 917 events. 490/917 cut-off events. For 7027/7045 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4218 event pairs, 161 based on Foata normal form. 45/961 useless extension candidates. Maximal degree in co-relation 3734. Up to 540 conditions per place. [2025-02-06 12:35:05,060 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 56 selfloop transitions, 13 changer transitions 31/104 dead transitions. [2025-02-06 12:35:05,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 104 transitions, 1047 flow [2025-02-06 12:35:05,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 12:35:05,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 12:35:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 168 transitions. [2025-02-06 12:35:05,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5266457680250783 [2025-02-06 12:35:05,062 INFO L175 Difference]: Start difference. First operand has 75 places, 50 transitions, 501 flow. Second operand 11 states and 168 transitions. [2025-02-06 12:35:05,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 104 transitions, 1047 flow [2025-02-06 12:35:05,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 104 transitions, 969 flow, removed 22 selfloop flow, removed 7 redundant places. [2025-02-06 12:35:05,080 INFO L231 Difference]: Finished difference. Result has 81 places, 52 transitions, 519 flow [2025-02-06 12:35:05,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=519, PETRI_PLACES=81, PETRI_TRANSITIONS=52} [2025-02-06 12:35:05,081 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 51 predicate places. [2025-02-06 12:35:05,082 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 52 transitions, 519 flow [2025-02-06 12:35:05,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:05,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:05,082 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:05,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:35:05,083 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:05,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:05,083 INFO L85 PathProgramCache]: Analyzing trace with hash -833258891, now seen corresponding path program 2 times [2025-02-06 12:35:05,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:05,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058341471] [2025-02-06 12:35:05,084 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:05,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:05,090 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:35:05,093 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:35:05,094 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:35:05,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:05,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:05,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058341471] [2025-02-06 12:35:05,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058341471] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:05,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:05,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:35:05,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786358373] [2025-02-06 12:35:05,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:05,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:35:05,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:05,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:35:05,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:35:05,191 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:05,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 52 transitions, 519 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:05,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:05,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:05,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:05,523 INFO L124 PetriNetUnfolderBase]: 643/1211 cut-off events. [2025-02-06 12:35:05,523 INFO L125 PetriNetUnfolderBase]: For 12283/12301 co-relation queries the response was YES. [2025-02-06 12:35:05,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5363 conditions, 1211 events. 643/1211 cut-off events. For 12283/12301 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5898 event pairs, 134 based on Foata normal form. 45/1255 useless extension candidates. Maximal degree in co-relation 5327. Up to 465 conditions per place. [2025-02-06 12:35:05,532 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 76 selfloop transitions, 23 changer transitions 31/134 dead transitions. [2025-02-06 12:35:05,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 134 transitions, 1387 flow [2025-02-06 12:35:05,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 12:35:05,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-02-06 12:35:05,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 232 transitions. [2025-02-06 12:35:05,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333 [2025-02-06 12:35:05,535 INFO L175 Difference]: Start difference. First operand has 81 places, 52 transitions, 519 flow. Second operand 15 states and 232 transitions. [2025-02-06 12:35:05,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 134 transitions, 1387 flow [2025-02-06 12:35:05,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 134 transitions, 1219 flow, removed 73 selfloop flow, removed 8 redundant places. [2025-02-06 12:35:05,552 INFO L231 Difference]: Finished difference. Result has 91 places, 58 transitions, 635 flow [2025-02-06 12:35:05,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=635, PETRI_PLACES=91, PETRI_TRANSITIONS=58} [2025-02-06 12:35:05,553 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 61 predicate places. [2025-02-06 12:35:05,554 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 58 transitions, 635 flow [2025-02-06 12:35:05,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:05,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:05,554 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:05,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:35:05,555 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:05,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:05,555 INFO L85 PathProgramCache]: Analyzing trace with hash -836826767, now seen corresponding path program 3 times [2025-02-06 12:35:05,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:05,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154873271] [2025-02-06 12:35:05,556 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:35:05,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:05,561 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 19 statements into 1 equivalence classes. [2025-02-06 12:35:05,565 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 12:35:05,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 12:35:05,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:05,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:05,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:05,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154873271] [2025-02-06 12:35:05,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154873271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:05,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:35:05,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:35:05,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084699923] [2025-02-06 12:35:05,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:05,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:35:05,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:05,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:35:05,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:35:05,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:05,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 58 transitions, 635 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:05,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:05,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:05,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:05,928 INFO L124 PetriNetUnfolderBase]: 580/1094 cut-off events. [2025-02-06 12:35:05,929 INFO L125 PetriNetUnfolderBase]: For 12793/12811 co-relation queries the response was YES. [2025-02-06 12:35:05,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5016 conditions, 1094 events. 580/1094 cut-off events. For 12793/12811 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5248 event pairs, 140 based on Foata normal form. 63/1156 useless extension candidates. Maximal degree in co-relation 4976. Up to 435 conditions per place. [2025-02-06 12:35:05,936 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 64 selfloop transitions, 24 changer transitions 39/131 dead transitions. [2025-02-06 12:35:05,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 131 transitions, 1443 flow [2025-02-06 12:35:05,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 12:35:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-06 12:35:05,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 215 transitions. [2025-02-06 12:35:05,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5295566502463054 [2025-02-06 12:35:05,938 INFO L175 Difference]: Start difference. First operand has 91 places, 58 transitions, 635 flow. Second operand 14 states and 215 transitions. [2025-02-06 12:35:05,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 131 transitions, 1443 flow [2025-02-06 12:35:05,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 131 transitions, 1275 flow, removed 68 selfloop flow, removed 10 redundant places. [2025-02-06 12:35:05,955 INFO L231 Difference]: Finished difference. Result has 96 places, 59 transitions, 638 flow [2025-02-06 12:35:05,955 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=638, PETRI_PLACES=96, PETRI_TRANSITIONS=59} [2025-02-06 12:35:05,956 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 66 predicate places. [2025-02-06 12:35:05,956 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 59 transitions, 638 flow [2025-02-06 12:35:05,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:05,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:05,957 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:05,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 12:35:05,957 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:05,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:05,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1779029952, now seen corresponding path program 1 times [2025-02-06 12:35:05,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:05,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460040704] [2025-02-06 12:35:05,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:05,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:05,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:35:05,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:35:05,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:05,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:06,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:06,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460040704] [2025-02-06 12:35:06,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460040704] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:06,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462197062] [2025-02-06 12:35:06,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:35:06,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:06,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:06,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:06,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:35:06,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:35:06,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:35:06,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:06,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:06,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:35:06,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:06,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:06,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:06,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462197062] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:06,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:06,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2025-02-06 12:35:06,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745351598] [2025-02-06 12:35:06,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:06,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 12:35:06,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:06,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 12:35:06,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2025-02-06 12:35:06,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:06,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 59 transitions, 638 flow. Second operand has 15 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 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) [2025-02-06 12:35:06,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:06,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:06,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:06,902 INFO L124 PetriNetUnfolderBase]: 877/1649 cut-off events. [2025-02-06 12:35:06,903 INFO L125 PetriNetUnfolderBase]: For 24500/24518 co-relation queries the response was YES. [2025-02-06 12:35:06,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8250 conditions, 1649 events. 877/1649 cut-off events. For 24500/24518 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8074 event pairs, 65 based on Foata normal form. 81/1727 useless extension candidates. Maximal degree in co-relation 8208. Up to 312 conditions per place. [2025-02-06 12:35:06,915 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 91 selfloop transitions, 46 changer transitions 67/208 dead transitions. [2025-02-06 12:35:06,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 208 transitions, 2376 flow [2025-02-06 12:35:06,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-02-06 12:35:06,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-02-06 12:35:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 384 transitions. [2025-02-06 12:35:06,917 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5296551724137931 [2025-02-06 12:35:06,918 INFO L175 Difference]: Start difference. First operand has 96 places, 59 transitions, 638 flow. Second operand 25 states and 384 transitions. [2025-02-06 12:35:06,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 208 transitions, 2376 flow [2025-02-06 12:35:06,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 208 transitions, 2192 flow, removed 72 selfloop flow, removed 12 redundant places. [2025-02-06 12:35:06,950 INFO L231 Difference]: Finished difference. Result has 120 places, 69 transitions, 965 flow [2025-02-06 12:35:06,950 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=965, PETRI_PLACES=120, PETRI_TRANSITIONS=69} [2025-02-06 12:35:06,951 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 90 predicate places. [2025-02-06 12:35:06,951 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 69 transitions, 965 flow [2025-02-06 12:35:06,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 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) [2025-02-06 12:35:06,951 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:06,951 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:06,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 12:35:07,155 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,SelfDestructingSolverStorable11 [2025-02-06 12:35:07,155 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:07,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash -230915460, now seen corresponding path program 2 times [2025-02-06 12:35:07,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:07,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507725474] [2025-02-06 12:35:07,156 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:07,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:07,160 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-06 12:35:07,163 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:35:07,164 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:35:07,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:07,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507725474] [2025-02-06 12:35:07,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507725474] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:07,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938123781] [2025-02-06 12:35:07,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:07,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:07,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:07,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:07,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 12:35:07,304 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-02-06 12:35:07,317 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:35:07,317 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:35:07,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:07,318 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:35:07,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:07,388 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:07,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:07,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938123781] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:07,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:07,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2025-02-06 12:35:07,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862199838] [2025-02-06 12:35:07,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:07,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 12:35:07,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:07,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 12:35:07,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2025-02-06 12:35:07,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:07,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 69 transitions, 965 flow. Second operand has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 15 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) [2025-02-06 12:35:07,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:07,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:07,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:08,255 INFO L124 PetriNetUnfolderBase]: 1021/1931 cut-off events. [2025-02-06 12:35:08,255 INFO L125 PetriNetUnfolderBase]: For 63293/63311 co-relation queries the response was YES. [2025-02-06 12:35:08,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12119 conditions, 1931 events. 1021/1931 cut-off events. For 63293/63311 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9587 event pairs, 38 based on Foata normal form. 126/2056 useless extension candidates. Maximal degree in co-relation 12065. Up to 390 conditions per place. [2025-02-06 12:35:08,271 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 91 selfloop transitions, 63 changer transitions 98/256 dead transitions. [2025-02-06 12:35:08,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 256 transitions, 3882 flow [2025-02-06 12:35:08,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 12:35:08,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-06 12:35:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 459 transitions. [2025-02-06 12:35:08,273 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5275862068965518 [2025-02-06 12:35:08,274 INFO L175 Difference]: Start difference. First operand has 120 places, 69 transitions, 965 flow. Second operand 30 states and 459 transitions. [2025-02-06 12:35:08,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 256 transitions, 3882 flow [2025-02-06 12:35:08,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 256 transitions, 3122 flow, removed 346 selfloop flow, removed 19 redundant places. [2025-02-06 12:35:08,348 INFO L231 Difference]: Finished difference. Result has 142 places, 87 transitions, 1383 flow [2025-02-06 12:35:08,348 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1383, PETRI_PLACES=142, PETRI_TRANSITIONS=87} [2025-02-06 12:35:08,349 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 112 predicate places. [2025-02-06 12:35:08,349 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 87 transitions, 1383 flow [2025-02-06 12:35:08,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 15 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) [2025-02-06 12:35:08,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:08,349 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:08,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 12:35:08,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:08,550 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:08,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:08,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2049794340, now seen corresponding path program 3 times [2025-02-06 12:35:08,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:08,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050239975] [2025-02-06 12:35:08,551 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:35:08,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:08,556 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 4 equivalence classes. [2025-02-06 12:35:08,563 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 12:35:08,563 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-02-06 12:35:08,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:08,710 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:08,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050239975] [2025-02-06 12:35:08,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050239975] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:08,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328303696] [2025-02-06 12:35:08,711 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:35:08,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:08,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:08,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:08,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 12:35:08,744 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 4 equivalence classes. [2025-02-06 12:35:08,757 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 12:35:08,758 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-02-06 12:35:08,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:08,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 12:35:08,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:08,829 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:08,979 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:08,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328303696] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:08,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:08,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2025-02-06 12:35:08,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384956317] [2025-02-06 12:35:08,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:08,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-02-06 12:35:08,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:08,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-02-06 12:35:08,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2025-02-06 12:35:08,985 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:08,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 87 transitions, 1383 flow. Second operand has 25 states, 25 states have (on average 10.0) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:08,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:08,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:08,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:10,206 INFO L124 PetriNetUnfolderBase]: 1669/3072 cut-off events. [2025-02-06 12:35:10,206 INFO L125 PetriNetUnfolderBase]: For 142770/142776 co-relation queries the response was YES. [2025-02-06 12:35:10,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22092 conditions, 3072 events. 1669/3072 cut-off events. For 142770/142776 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 15162 event pairs, 42 based on Foata normal form. 96/3167 useless extension candidates. Maximal degree in co-relation 22029. Up to 648 conditions per place. [2025-02-06 12:35:10,237 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 141 selfloop transitions, 109 changer transitions 135/389 dead transitions. [2025-02-06 12:35:10,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 389 transitions, 6740 flow [2025-02-06 12:35:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-06 12:35:10,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2025-02-06 12:35:10,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 703 transitions. [2025-02-06 12:35:10,240 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5269865067466267 [2025-02-06 12:35:10,240 INFO L175 Difference]: Start difference. First operand has 142 places, 87 transitions, 1383 flow. Second operand 46 states and 703 transitions. [2025-02-06 12:35:10,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 389 transitions, 6740 flow [2025-02-06 12:35:10,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 389 transitions, 5582 flow, removed 542 selfloop flow, removed 21 redundant places. [2025-02-06 12:35:10,420 INFO L231 Difference]: Finished difference. Result has 186 places, 133 transitions, 2467 flow [2025-02-06 12:35:10,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1011, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=2467, PETRI_PLACES=186, PETRI_TRANSITIONS=133} [2025-02-06 12:35:10,422 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 156 predicate places. [2025-02-06 12:35:10,422 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 133 transitions, 2467 flow [2025-02-06 12:35:10,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.0) internal successors, (250), 25 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:10,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:10,423 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:10,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 12:35:10,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:10,628 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:10,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:10,629 INFO L85 PathProgramCache]: Analyzing trace with hash -573102411, now seen corresponding path program 4 times [2025-02-06 12:35:10,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:10,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852422772] [2025-02-06 12:35:10,629 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 12:35:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:10,633 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-02-06 12:35:10,642 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 12:35:10,642 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 12:35:10,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:10,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:10,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852422772] [2025-02-06 12:35:10,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852422772] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:10,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553460687] [2025-02-06 12:35:10,928 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-06 12:35:10,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:10,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:10,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:10,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 12:35:10,972 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 52 statements into 2 equivalence classes. [2025-02-06 12:35:10,986 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 12:35:10,986 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-06 12:35:10,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:10,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 12:35:10,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:11,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:11,378 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:11,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553460687] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:11,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:11,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 26 [2025-02-06 12:35:11,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837023996] [2025-02-06 12:35:11,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:11,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-02-06 12:35:11,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:11,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-02-06 12:35:11,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2025-02-06 12:35:11,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:11,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 133 transitions, 2467 flow. Second operand has 27 states, 27 states have (on average 10.185185185185185) internal successors, (275), 27 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:11,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:11,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:11,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:12,744 INFO L124 PetriNetUnfolderBase]: 1939/3738 cut-off events. [2025-02-06 12:35:12,745 INFO L125 PetriNetUnfolderBase]: For 311524/311530 co-relation queries the response was YES. [2025-02-06 12:35:12,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31369 conditions, 3738 events. 1939/3738 cut-off events. For 311524/311530 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 19825 event pairs, 403 based on Foata normal form. 87/3822 useless extension candidates. Maximal degree in co-relation 31290. Up to 1447 conditions per place. [2025-02-06 12:35:12,773 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 160 selfloop transitions, 88 changer transitions 115/367 dead transitions. [2025-02-06 12:35:12,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 367 transitions, 8205 flow [2025-02-06 12:35:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2025-02-06 12:35:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2025-02-06 12:35:12,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 564 transitions. [2025-02-06 12:35:12,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5117967332123412 [2025-02-06 12:35:12,775 INFO L175 Difference]: Start difference. First operand has 186 places, 133 transitions, 2467 flow. Second operand 38 states and 564 transitions. [2025-02-06 12:35:12,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 367 transitions, 8205 flow [2025-02-06 12:35:13,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 367 transitions, 6436 flow, removed 861 selfloop flow, removed 21 redundant places. [2025-02-06 12:35:13,123 INFO L231 Difference]: Finished difference. Result has 211 places, 165 transitions, 2892 flow [2025-02-06 12:35:13,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=1782, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=2892, PETRI_PLACES=211, PETRI_TRANSITIONS=165} [2025-02-06 12:35:13,123 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 181 predicate places. [2025-02-06 12:35:13,124 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 165 transitions, 2892 flow [2025-02-06 12:35:13,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.185185185185185) internal successors, (275), 27 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:13,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:13,124 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:13,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 12:35:13,324 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,SelfDestructingSolverStorable14 [2025-02-06 12:35:13,324 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:13,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:13,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1216995193, now seen corresponding path program 5 times [2025-02-06 12:35:13,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:13,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654916518] [2025-02-06 12:35:13,325 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 12:35:13,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:13,329 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 52 statements into 4 equivalence classes. [2025-02-06 12:35:13,337 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 12:35:13,337 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-02-06 12:35:13,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:13,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:13,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654916518] [2025-02-06 12:35:13,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654916518] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:13,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035962910] [2025-02-06 12:35:13,552 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-06 12:35:13,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:13,554 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:13,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 12:35:13,584 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 52 statements into 4 equivalence classes. [2025-02-06 12:35:13,597 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 12:35:13,597 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-02-06 12:35:13,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:13,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 12:35:13,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:13,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:13,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035962910] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:13,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 30 [2025-02-06 12:35:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567623275] [2025-02-06 12:35:13,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:13,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-02-06 12:35:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:13,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-02-06 12:35:13,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2025-02-06 12:35:13,955 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:13,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 165 transitions, 2892 flow. Second operand has 31 states, 31 states have (on average 10.225806451612904) internal successors, (317), 31 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:13,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:13,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:13,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:15,702 INFO L124 PetriNetUnfolderBase]: 2434/4865 cut-off events. [2025-02-06 12:35:15,702 INFO L125 PetriNetUnfolderBase]: For 466650/466656 co-relation queries the response was YES. [2025-02-06 12:35:15,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40939 conditions, 4865 events. 2434/4865 cut-off events. For 466650/466656 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 28085 event pairs, 194 based on Foata normal form. 87/4951 useless extension candidates. Maximal degree in co-relation 40853. Up to 1152 conditions per place. [2025-02-06 12:35:15,746 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 153 selfloop transitions, 171 changer transitions 127/455 dead transitions. [2025-02-06 12:35:15,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 455 transitions, 9699 flow [2025-02-06 12:35:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-06 12:35:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-02-06 12:35:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 659 transitions. [2025-02-06 12:35:15,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5164576802507836 [2025-02-06 12:35:15,748 INFO L175 Difference]: Start difference. First operand has 211 places, 165 transitions, 2892 flow. Second operand 44 states and 659 transitions. [2025-02-06 12:35:15,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 455 transitions, 9699 flow [2025-02-06 12:35:16,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 455 transitions, 8582 flow, removed 529 selfloop flow, removed 20 redundant places. [2025-02-06 12:35:16,325 INFO L231 Difference]: Finished difference. Result has 244 places, 219 transitions, 4223 flow [2025-02-06 12:35:16,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=2411, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=4223, PETRI_PLACES=244, PETRI_TRANSITIONS=219} [2025-02-06 12:35:16,325 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 214 predicate places. [2025-02-06 12:35:16,325 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 219 transitions, 4223 flow [2025-02-06 12:35:16,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.225806451612904) internal successors, (317), 31 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:16,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:16,325 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:16,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 12:35:16,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 12:35:16,526 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:16,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:16,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1082171783, now seen corresponding path program 6 times [2025-02-06 12:35:16,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:16,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632085897] [2025-02-06 12:35:16,527 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 12:35:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:16,531 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 52 statements into 8 equivalence classes. [2025-02-06 12:35:16,537 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 12:35:16,539 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-02-06 12:35:16,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:16,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:16,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632085897] [2025-02-06 12:35:16,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632085897] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:16,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321825321] [2025-02-06 12:35:16,782 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-06 12:35:16,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:16,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:16,787 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:16,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 12:35:16,827 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 52 statements into 8 equivalence classes. [2025-02-06 12:35:16,841 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 12:35:16,842 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-02-06 12:35:16,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:16,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 12:35:16,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:16,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:17,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321825321] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:17,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:17,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 30 [2025-02-06 12:35:17,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670902545] [2025-02-06 12:35:17,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:17,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-02-06 12:35:17,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:17,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-02-06 12:35:17,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2025-02-06 12:35:17,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:17,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 219 transitions, 4223 flow. Second operand has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:17,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:17,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:17,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:19,254 INFO L124 PetriNetUnfolderBase]: 3073/6076 cut-off events. [2025-02-06 12:35:19,254 INFO L125 PetriNetUnfolderBase]: For 773470/773476 co-relation queries the response was YES. [2025-02-06 12:35:19,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57860 conditions, 6076 events. 3073/6076 cut-off events. For 773470/773476 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 35460 event pairs, 47 based on Foata normal form. 87/6160 useless extension candidates. Maximal degree in co-relation 57763. Up to 1446 conditions per place. [2025-02-06 12:35:19,311 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 182 selfloop transitions, 225 changer transitions 121/532 dead transitions. [2025-02-06 12:35:19,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 532 transitions, 12737 flow [2025-02-06 12:35:19,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2025-02-06 12:35:19,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2025-02-06 12:35:19,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 749 transitions. [2025-02-06 12:35:19,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5270935960591133 [2025-02-06 12:35:19,314 INFO L175 Difference]: Start difference. First operand has 244 places, 219 transitions, 4223 flow. Second operand 49 states and 749 transitions. [2025-02-06 12:35:19,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 532 transitions, 12737 flow [2025-02-06 12:35:19,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 532 transitions, 11018 flow, removed 808 selfloop flow, removed 24 redundant places. [2025-02-06 12:35:19,912 INFO L231 Difference]: Finished difference. Result has 281 places, 255 transitions, 5407 flow [2025-02-06 12:35:19,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=3488, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=191, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=5407, PETRI_PLACES=281, PETRI_TRANSITIONS=255} [2025-02-06 12:35:19,913 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 251 predicate places. [2025-02-06 12:35:19,913 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 255 transitions, 5407 flow [2025-02-06 12:35:19,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 10.096774193548388) internal successors, (313), 31 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:19,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:19,914 INFO L206 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:19,919 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 [2025-02-06 12:35:20,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-06 12:35:20,114 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:20,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1331816570, now seen corresponding path program 7 times [2025-02-06 12:35:20,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:20,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720430342] [2025-02-06 12:35:20,115 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 12:35:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:20,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 12:35:20,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 12:35:20,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:20,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:20,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:20,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720430342] [2025-02-06 12:35:20,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720430342] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:20,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163458750] [2025-02-06 12:35:20,420 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-06 12:35:20,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:20,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:20,422 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:20,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 12:35:20,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 12:35:20,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 12:35:20,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:35:20,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:20,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 12:35:20,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:20,564 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:20,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:20,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163458750] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:20,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:20,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 27 [2025-02-06 12:35:20,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648032624] [2025-02-06 12:35:20,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:20,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-02-06 12:35:20,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:20,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-02-06 12:35:20,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=600, Unknown=0, NotChecked=0, Total=756 [2025-02-06 12:35:20,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:20,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 255 transitions, 5407 flow. Second operand has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 28 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:20,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:20,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:20,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:22,738 INFO L124 PetriNetUnfolderBase]: 3082/6117 cut-off events. [2025-02-06 12:35:22,738 INFO L125 PetriNetUnfolderBase]: For 981467/981473 co-relation queries the response was YES. [2025-02-06 12:35:22,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62070 conditions, 6117 events. 3082/6117 cut-off events. For 981467/981473 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 35766 event pairs, 38 based on Foata normal form. 123/6239 useless extension candidates. Maximal degree in co-relation 61959. Up to 1452 conditions per place. [2025-02-06 12:35:22,789 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 174 selfloop transitions, 242 changer transitions 139/559 dead transitions. [2025-02-06 12:35:22,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 559 transitions, 14137 flow [2025-02-06 12:35:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-02-06 12:35:22,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2025-02-06 12:35:22,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 789 transitions. [2025-02-06 12:35:22,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.523209549071618 [2025-02-06 12:35:22,791 INFO L175 Difference]: Start difference. First operand has 281 places, 255 transitions, 5407 flow. Second operand 52 states and 789 transitions. [2025-02-06 12:35:22,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 559 transitions, 14137 flow [2025-02-06 12:35:23,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 559 transitions, 12231 flow, removed 863 selfloop flow, removed 28 redundant places. [2025-02-06 12:35:23,952 INFO L231 Difference]: Finished difference. Result has 312 places, 268 transitions, 5884 flow [2025-02-06 12:35:23,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4407, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=5884, PETRI_PLACES=312, PETRI_TRANSITIONS=268} [2025-02-06 12:35:23,952 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 282 predicate places. [2025-02-06 12:35:23,952 INFO L471 AbstractCegarLoop]: Abstraction has has 312 places, 268 transitions, 5884 flow [2025-02-06 12:35:23,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 10.142857142857142) internal successors, (284), 28 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:23,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:23,952 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:23,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 12:35:24,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:24,157 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:24,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:24,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2027338130, now seen corresponding path program 8 times [2025-02-06 12:35:24,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:24,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548674469] [2025-02-06 12:35:24,158 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:24,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:24,161 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-02-06 12:35:24,166 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 12:35:24,167 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:35:24,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:24,414 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:24,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:24,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548674469] [2025-02-06 12:35:24,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548674469] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:24,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672514256] [2025-02-06 12:35:24,414 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:35:24,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:24,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:24,416 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:35:24,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 12:35:24,451 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 70 statements into 2 equivalence classes. [2025-02-06 12:35:24,472 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 12:35:24,472 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:35:24,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:24,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 12:35:24,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:24,585 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:24,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:35:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 249 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:35:24,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672514256] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:35:24,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:35:24,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2025-02-06 12:35:24,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115692932] [2025-02-06 12:35:24,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:35:24,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-02-06 12:35:24,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:24,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-02-06 12:35:24,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=1860, Unknown=0, NotChecked=0, Total=2352 [2025-02-06 12:35:24,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:24,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 268 transitions, 5884 flow. Second operand has 49 states, 49 states have (on average 10.0) internal successors, (490), 49 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:24,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:24,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:24,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:27,514 INFO L124 PetriNetUnfolderBase]: 3379/6670 cut-off events. [2025-02-06 12:35:27,514 INFO L125 PetriNetUnfolderBase]: For 1153141/1153147 co-relation queries the response was YES. [2025-02-06 12:35:27,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69185 conditions, 6670 events. 3379/6670 cut-off events. For 1153141/1153147 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 39281 event pairs, 102 based on Foata normal form. 42/6711 useless extension candidates. Maximal degree in co-relation 69067. Up to 1584 conditions per place. [2025-02-06 12:35:27,588 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 197 selfloop transitions, 265 changer transitions 117/583 dead transitions. [2025-02-06 12:35:27,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 583 transitions, 14679 flow [2025-02-06 12:35:27,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-02-06 12:35:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2025-02-06 12:35:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 787 transitions. [2025-02-06 12:35:27,592 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5218832891246684 [2025-02-06 12:35:27,592 INFO L175 Difference]: Start difference. First operand has 312 places, 268 transitions, 5884 flow. Second operand 52 states and 787 transitions. [2025-02-06 12:35:27,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 583 transitions, 14679 flow [2025-02-06 12:35:29,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 583 transitions, 12640 flow, removed 822 selfloop flow, removed 42 redundant places. [2025-02-06 12:35:29,301 INFO L231 Difference]: Finished difference. Result has 326 places, 301 transitions, 6457 flow [2025-02-06 12:35:29,301 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4711, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=233, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=6457, PETRI_PLACES=326, PETRI_TRANSITIONS=301} [2025-02-06 12:35:29,302 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 296 predicate places. [2025-02-06 12:35:29,302 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 301 transitions, 6457 flow [2025-02-06 12:35:29,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 10.0) internal successors, (490), 49 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:29,302 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:35:29,302 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:35:29,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 12:35:29,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:29,503 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-06 12:35:29,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:35:29,503 INFO L85 PathProgramCache]: Analyzing trace with hash 355976563, now seen corresponding path program 9 times [2025-02-06 12:35:29,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:35:29,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029118289] [2025-02-06 12:35:29,504 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:35:29,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:35:29,508 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 73 statements into 11 equivalence classes. [2025-02-06 12:35:29,517 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 70 of 73 statements. [2025-02-06 12:35:29,518 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-02-06 12:35:29,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 209 proven. 26 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 12:35:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:35:29,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029118289] [2025-02-06 12:35:29,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029118289] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:35:29,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344991207] [2025-02-06 12:35:29,645 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 12:35:29,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:29,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:35:29,647 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) [2025-02-06 12:35:29,648 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 [2025-02-06 12:35:29,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 73 statements into 11 equivalence classes. [2025-02-06 12:35:29,693 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) and asserted 70 of 73 statements. [2025-02-06 12:35:29,694 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2025-02-06 12:35:29,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:35:29,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 12:35:29,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:35:29,784 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 12:35:29,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:35:29,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344991207] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:35:29,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 12:35:29,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2025-02-06 12:35:29,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975085105] [2025-02-06 12:35:29,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:35:29,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 12:35:29,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:35:29,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 12:35:29,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2025-02-06 12:35:29,787 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 29 [2025-02-06 12:35:29,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 301 transitions, 6457 flow. Second operand has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:29,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:35:29,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 29 [2025-02-06 12:35:29,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:35:36,183 INFO L124 PetriNetUnfolderBase]: 18901/32155 cut-off events. [2025-02-06 12:35:36,183 INFO L125 PetriNetUnfolderBase]: For 4767395/4767400 co-relation queries the response was YES. [2025-02-06 12:35:36,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289498 conditions, 32155 events. 18901/32155 cut-off events. For 4767395/4767400 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 231223 event pairs, 258 based on Foata normal form. 1/28821 useless extension candidates. Maximal degree in co-relation 289380. Up to 6779 conditions per place. [2025-02-06 12:35:36,639 INFO L140 encePairwiseOnDemand]: 25/29 looper letters, 0 selfloop transitions, 0 changer transitions 1756/1756 dead transitions. [2025-02-06 12:35:36,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 1756 transitions, 37258 flow [2025-02-06 12:35:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 12:35:36,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-06 12:35:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 245 transitions. [2025-02-06 12:35:36,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.649867374005305 [2025-02-06 12:35:36,641 INFO L175 Difference]: Start difference. First operand has 326 places, 301 transitions, 6457 flow. Second operand 13 states and 245 transitions. [2025-02-06 12:35:36,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 1756 transitions, 37258 flow [2025-02-06 12:35:46,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 1756 transitions, 33124 flow, removed 605 selfloop flow, removed 47 redundant places. [2025-02-06 12:35:46,282 INFO L231 Difference]: Finished difference. Result has 283 places, 0 transitions, 0 flow [2025-02-06 12:35:46,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=4943, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=283, PETRI_TRANSITIONS=0} [2025-02-06 12:35:46,283 INFO L279 CegarLoopForPetriNet]: 30 programPoint places, 253 predicate places. [2025-02-06 12:35:46,283 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 0 transitions, 0 flow [2025-02-06 12:35:46,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.692307692307692) internal successors, (165), 13 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:35:46,286 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2025-02-06 12:35:46,290 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2025-02-06 12:35:46,290 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2025-02-06 12:35:46,290 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2025-02-06 12:35:46,298 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 [2025-02-06 12:35:46,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:35:46,491 INFO L422 BasicCegarLoop]: Path program histogram: [9, 3, 3, 2, 1, 1, 1] [2025-02-06 12:35:46,495 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:35:46,495 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:35:46,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:35:46 BasicIcfg [2025-02-06 12:35:46,501 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:35:46,501 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:35:46,501 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:35:46,502 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:35:46,502 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:35:01" (3/4) ... [2025-02-06 12:35:46,504 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:35:46,507 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t1 [2025-02-06 12:35:46,507 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t2 [2025-02-06 12:35:46,509 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-02-06 12:35:46,509 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-06 12:35:46,509 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 12:35:46,509 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-06 12:35:46,509 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 12:35:46,568 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:35:46,569 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:35:46,569 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:35:46,570 INFO L158 Benchmark]: Toolchain (without parser) took 45680.30ms. Allocated memory was 142.6MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 105.3MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2025-02-06 12:35:46,570 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory was 126.4MB in the beginning and 126.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:35:46,570 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.39ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 86.8MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:35:46,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.98ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 85.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:35:46,573 INFO L158 Benchmark]: Boogie Preprocessor took 27.31ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 82.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:35:46,573 INFO L158 Benchmark]: IcfgBuilder took 324.21ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 65.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:35:46,574 INFO L158 Benchmark]: TraceAbstraction took 44836.96ms. Allocated memory was 142.6MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 65.0MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2025-02-06 12:35:46,574 INFO L158 Benchmark]: Witness Printer took 67.43ms. Allocated memory is still 2.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:35:46,576 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory was 126.4MB in the beginning and 126.1MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.39ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 86.8MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.98ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 85.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.31ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 82.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 324.21ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 65.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44836.96ms. Allocated memory was 142.6MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 65.0MB in the beginning and 1.3GB in the end (delta: -1.3GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. * Witness Printer took 67.43ms. Allocated memory is still 2.8GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 693]: 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, 38 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: 44.7s, OverallIterations: 20, TraceHistogramMax: 11, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 36.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5818 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5812 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 376 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6951 IncrementalHoareTripleChecker+Invalid, 7327 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 376 mSolverCounterUnsat, 5 mSDtfsCounter, 6951 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1333 GetRequests, 696 SyntacticMatches, 16 SemanticMatches, 621 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10052 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6457occurred in iteration=19, InterpolantAutomatonStates: 457, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 1040 NumberOfCodeBlocks, 1034 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 1365 ConstructedInterpolants, 0 QuantifiedInterpolants, 5395 SizeOfPredicates, 102 NumberOfNonLiveVariables, 1254 ConjunctsInSsa, 154 ConjunctsInUnsatCore, 37 InterpolantComputations, 12 PerfectInterpolantSequences, 450/2405 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! [2025-02-06 12:35:46,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE