./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe017_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe017_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 f42e8f5213d7b87505465b65029831bd75698bf771428502e6718d43723a660f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:09:13,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:09:13,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:09:13,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:09:13,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:09:13,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:09:13,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:09:13,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:09:13,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:09:13,295 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:09:13,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:09:13,296 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:09:13,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:09:13,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:09:13,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:09:13,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:09:13,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:09:13,298 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/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 -> f42e8f5213d7b87505465b65029831bd75698bf771428502e6718d43723a660f [2025-03-09 01:09:13,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:09:13,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:09:13,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:09:13,537 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:09:13,537 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:09:13,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe017_tso.i [2025-03-09 01:09:14,801 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b17acd0/486550f8a1eb4186afa790b624d6db06/FLAG60d3f2de3 [2025-03-09 01:09:15,119 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:09:15,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe017_tso.i [2025-03-09 01:09:15,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b17acd0/486550f8a1eb4186afa790b624d6db06/FLAG60d3f2de3 [2025-03-09 01:09:15,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b17acd0/486550f8a1eb4186afa790b624d6db06 [2025-03-09 01:09:15,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:09:15,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:09:15,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:09:15,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:09:15,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:09:15,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d41fce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15, skipping insertion in model container [2025-03-09 01:09:15,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:09:15,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:09:15,409 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:09:15,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:09:15,483 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:09:15,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15 WrapperNode [2025-03-09 01:09:15,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:09:15,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:09:15,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:09:15,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:09:15,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,516 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2025-03-09 01:09:15,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:09:15,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:09:15,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:09:15,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:09:15,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,547 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]. [2025-03-09 01:09:15,547 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,551 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,553 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:09:15,555 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:09:15,556 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:09:15,556 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:09:15,556 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (1/1) ... [2025-03-09 01:09:15,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:09:15,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:09:15,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:09:15,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:09:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:09:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:09:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 01:09:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 01:09:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 01:09:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 01:09:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 01:09:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 01:09:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:09:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:09:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:09:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:09:15,605 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:09:15,711 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:09:15,713 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:09:15,829 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:09:15,829 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:09:15,888 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:09:15,889 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:09:15,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:09:15 BoogieIcfgContainer [2025-03-09 01:09:15,889 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:09:15,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:09:15,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:09:15,895 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:09:15,896 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:09:15" (1/3) ... [2025-03-09 01:09:15,897 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1931597b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:09:15, skipping insertion in model container [2025-03-09 01:09:15,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:09:15" (2/3) ... [2025-03-09 01:09:15,898 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1931597b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:09:15, skipping insertion in model container [2025-03-09 01:09:15,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:09:15" (3/3) ... [2025-03-09 01:09:15,899 INFO L128 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2025-03-09 01:09:15,910 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:09:15,912 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe017_tso.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-09 01:09:15,912 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:09:15,950 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 01:09:15,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 42 transitions, 96 flow [2025-03-09 01:09:16,019 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2025-03-09 01:09:16,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:09:16,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 2/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2025-03-09 01:09:16,027 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 42 transitions, 96 flow [2025-03-09 01:09:16,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 38 transitions, 85 flow [2025-03-09 01:09:16,037 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:09:16,049 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;@2c56c602, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:09:16,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-09 01:09:16,065 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:09:16,066 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2025-03-09 01:09:16,066 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:09:16,067 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:16,068 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:16,068 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:16,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1074898074, now seen corresponding path program 1 times [2025-03-09 01:09:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:16,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237424334] [2025-03-09 01:09:16,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:16,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:16,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:09:16,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:09:16,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:16,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:16,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:16,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237424334] [2025-03-09 01:09:16,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237424334] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:16,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:16,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:09:16,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996586983] [2025-03-09 01:09:16,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:16,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:09:16,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:16,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:09:16,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:09:16,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:16,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:16,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:16,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:16,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:16,839 INFO L124 PetriNetUnfolderBase]: 3925/6137 cut-off events. [2025-03-09 01:09:16,839 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-03-09 01:09:16,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11834 conditions, 6137 events. 3925/6137 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 35636 event pairs, 3925 based on Foata normal form. 540/6636 useless extension candidates. Maximal degree in co-relation 11823. Up to 5618 conditions per place. [2025-03-09 01:09:16,877 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 26 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2025-03-09 01:09:16,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 34 transitions, 133 flow [2025-03-09 01:09:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:09:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:09:16,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 58 transitions. [2025-03-09 01:09:16,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4603174603174603 [2025-03-09 01:09:16,889 INFO L175 Difference]: Start difference. First operand has 46 places, 38 transitions, 85 flow. Second operand 3 states and 58 transitions. [2025-03-09 01:09:16,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 34 transitions, 133 flow [2025-03-09 01:09:16,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 34 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 01:09:16,896 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 74 flow [2025-03-09 01:09:16,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2025-03-09 01:09:16,900 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2025-03-09 01:09:16,901 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 74 flow [2025-03-09 01:09:16,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:16,902 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:16,902 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:16,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:09:16,903 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:16,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:16,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1074898551, now seen corresponding path program 1 times [2025-03-09 01:09:16,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:16,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370980439] [2025-03-09 01:09:16,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:16,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:16,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 01:09:16,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 01:09:16,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:16,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:17,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:17,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:17,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370980439] [2025-03-09 01:09:17,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370980439] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:17,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:17,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:09:17,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658583368] [2025-03-09 01:09:17,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:17,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:09:17,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:17,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:09:17,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:09:17,200 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:17,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2025-03-09 01:09:17,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:17,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:17,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:18,247 INFO L124 PetriNetUnfolderBase]: 8754/12966 cut-off events. [2025-03-09 01:09:18,248 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:09:18,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25723 conditions, 12966 events. 8754/12966 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 77502 event pairs, 2100 based on Foata normal form. 0/12637 useless extension candidates. Maximal degree in co-relation 25717. Up to 4365 conditions per place. [2025-03-09 01:09:18,290 INFO L140 encePairwiseOnDemand]: 32/42 looper letters, 45 selfloop transitions, 6 changer transitions 91/147 dead transitions. [2025-03-09 01:09:18,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 147 transitions, 590 flow [2025-03-09 01:09:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 01:09:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-09 01:09:18,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 225 transitions. [2025-03-09 01:09:18,292 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2025-03-09 01:09:18,292 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 74 flow. Second operand 9 states and 225 transitions. [2025-03-09 01:09:18,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 147 transitions, 590 flow [2025-03-09 01:09:18,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 147 transitions, 589 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:09:18,297 INFO L231 Difference]: Finished difference. Result has 57 places, 37 transitions, 155 flow [2025-03-09 01:09:18,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=155, PETRI_PLACES=57, PETRI_TRANSITIONS=37} [2025-03-09 01:09:18,297 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 11 predicate places. [2025-03-09 01:09:18,298 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 37 transitions, 155 flow [2025-03-09 01:09:18,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 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) [2025-03-09 01:09:18,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:18,298 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:18,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:09:18,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:18,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:18,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1142366634, now seen corresponding path program 1 times [2025-03-09 01:09:18,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:18,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990163737] [2025-03-09 01:09:18,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:18,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:18,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:09:18,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:09:18,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:18,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:18,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:18,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990163737] [2025-03-09 01:09:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990163737] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:18,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:09:18,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96960411] [2025-03-09 01:09:18,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:18,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:09:18,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:18,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:09:18,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:09:18,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:18,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 37 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2025-03-09 01:09:18,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:18,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:18,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:19,346 INFO L124 PetriNetUnfolderBase]: 6864/10348 cut-off events. [2025-03-09 01:09:19,347 INFO L125 PetriNetUnfolderBase]: For 13513/13516 co-relation queries the response was YES. [2025-03-09 01:09:19,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28801 conditions, 10348 events. 6864/10348 cut-off events. For 13513/13516 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 61664 event pairs, 985 based on Foata normal form. 313/10656 useless extension candidates. Maximal degree in co-relation 28786. Up to 4145 conditions per place. [2025-03-09 01:09:19,396 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 59 selfloop transitions, 10 changer transitions 82/156 dead transitions. [2025-03-09 01:09:19,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 156 transitions, 991 flow [2025-03-09 01:09:19,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:09:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 01:09:19,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 234 transitions. [2025-03-09 01:09:19,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5571428571428572 [2025-03-09 01:09:19,398 INFO L175 Difference]: Start difference. First operand has 57 places, 37 transitions, 155 flow. Second operand 10 states and 234 transitions. [2025-03-09 01:09:19,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 156 transitions, 991 flow [2025-03-09 01:09:19,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 156 transitions, 879 flow, removed 27 selfloop flow, removed 4 redundant places. [2025-03-09 01:09:19,461 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 253 flow [2025-03-09 01:09:19,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=253, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2025-03-09 01:09:19,462 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2025-03-09 01:09:19,462 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 253 flow [2025-03-09 01:09:19,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2025-03-09 01:09:19,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:19,462 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:19,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:09:19,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:19,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:19,463 INFO L85 PathProgramCache]: Analyzing trace with hash -881728252, now seen corresponding path program 1 times [2025-03-09 01:09:19,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:19,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906412245] [2025-03-09 01:09:19,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:19,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:09:19,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:09:19,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:19,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:19,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:19,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:19,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906412245] [2025-03-09 01:09:19,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906412245] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:19,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:19,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:09:19,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506113428] [2025-03-09 01:09:19,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:19,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:09:19,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:19,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:09:19,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:09:19,608 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:19,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2025-03-09 01:09:19,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:19,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:19,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:20,428 INFO L124 PetriNetUnfolderBase]: 6174/9299 cut-off events. [2025-03-09 01:09:20,428 INFO L125 PetriNetUnfolderBase]: For 23757/23757 co-relation queries the response was YES. [2025-03-09 01:09:20,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28814 conditions, 9299 events. 6174/9299 cut-off events. For 23757/23757 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 53967 event pairs, 1101 based on Foata normal form. 176/9471 useless extension candidates. Maximal degree in co-relation 28792. Up to 3993 conditions per place. [2025-03-09 01:09:20,490 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 62 selfloop transitions, 14 changer transitions 66/147 dead transitions. [2025-03-09 01:09:20,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 147 transitions, 987 flow [2025-03-09 01:09:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:09:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 01:09:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 225 transitions. [2025-03-09 01:09:20,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-03-09 01:09:20,496 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 253 flow. Second operand 10 states and 225 transitions. [2025-03-09 01:09:20,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 147 transitions, 987 flow [2025-03-09 01:09:20,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 147 transitions, 955 flow, removed 16 selfloop flow, removed 0 redundant places. [2025-03-09 01:09:20,561 INFO L231 Difference]: Finished difference. Result has 75 places, 49 transitions, 351 flow [2025-03-09 01:09:20,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=351, PETRI_PLACES=75, PETRI_TRANSITIONS=49} [2025-03-09 01:09:20,564 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2025-03-09 01:09:20,564 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 49 transitions, 351 flow [2025-03-09 01:09:20,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 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) [2025-03-09 01:09:20,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:20,565 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:20,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:09:20,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:20,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:20,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2007281325, now seen corresponding path program 1 times [2025-03-09 01:09:20,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:20,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708969791] [2025-03-09 01:09:20,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:20,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:20,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 01:09:20,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 01:09:20,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:20,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:20,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:20,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708969791] [2025-03-09 01:09:20,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708969791] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:20,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:20,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:09:20,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715751816] [2025-03-09 01:09:20,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:20,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:09:20,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:20,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:09:20,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:09:20,717 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:20,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 49 transitions, 351 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:20,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:20,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:20,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:21,285 INFO L124 PetriNetUnfolderBase]: 5829/8762 cut-off events. [2025-03-09 01:09:21,285 INFO L125 PetriNetUnfolderBase]: For 31035/31035 co-relation queries the response was YES. [2025-03-09 01:09:21,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29390 conditions, 8762 events. 5829/8762 cut-off events. For 31035/31035 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 48646 event pairs, 712 based on Foata normal form. 152/8905 useless extension candidates. Maximal degree in co-relation 29358. Up to 3420 conditions per place. [2025-03-09 01:09:21,405 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 60 selfloop transitions, 14 changer transitions 60/139 dead transitions. [2025-03-09 01:09:21,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 139 transitions, 1031 flow [2025-03-09 01:09:21,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 01:09:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 01:09:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 210 transitions. [2025-03-09 01:09:21,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-03-09 01:09:21,408 INFO L175 Difference]: Start difference. First operand has 75 places, 49 transitions, 351 flow. Second operand 10 states and 210 transitions. [2025-03-09 01:09:21,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 139 transitions, 1031 flow [2025-03-09 01:09:21,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 139 transitions, 965 flow, removed 33 selfloop flow, removed 10 redundant places. [2025-03-09 01:09:21,460 INFO L231 Difference]: Finished difference. Result has 77 places, 52 transitions, 428 flow [2025-03-09 01:09:21,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=428, PETRI_PLACES=77, PETRI_TRANSITIONS=52} [2025-03-09 01:09:21,463 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2025-03-09 01:09:21,463 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 52 transitions, 428 flow [2025-03-09 01:09:21,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:21,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:21,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:21,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 01:09:21,464 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:21,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:21,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1698396171, now seen corresponding path program 1 times [2025-03-09 01:09:21,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:21,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468301713] [2025-03-09 01:09:21,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:21,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:21,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 01:09:21,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 01:09:21,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:21,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:21,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:21,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:21,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468301713] [2025-03-09 01:09:21,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468301713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:21,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:21,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:09:21,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522604744] [2025-03-09 01:09:21,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:21,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:09:21,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:21,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:09:21,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:09:21,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:21,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 52 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:21,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:21,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:21,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:22,259 INFO L124 PetriNetUnfolderBase]: 7202/11006 cut-off events. [2025-03-09 01:09:22,260 INFO L125 PetriNetUnfolderBase]: For 46314/46324 co-relation queries the response was YES. [2025-03-09 01:09:22,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36467 conditions, 11006 events. 7202/11006 cut-off events. For 46314/46324 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 65676 event pairs, 3166 based on Foata normal form. 248/11243 useless extension candidates. Maximal degree in co-relation 36434. Up to 5919 conditions per place. [2025-03-09 01:09:22,309 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 58 selfloop transitions, 8 changer transitions 48/119 dead transitions. [2025-03-09 01:09:22,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 119 transitions, 965 flow [2025-03-09 01:09:22,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:09:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:09:22,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 159 transitions. [2025-03-09 01:09:22,310 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5408163265306123 [2025-03-09 01:09:22,310 INFO L175 Difference]: Start difference. First operand has 77 places, 52 transitions, 428 flow. Second operand 7 states and 159 transitions. [2025-03-09 01:09:22,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 119 transitions, 965 flow [2025-03-09 01:09:22,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 119 transitions, 898 flow, removed 21 selfloop flow, removed 6 redundant places. [2025-03-09 01:09:22,376 INFO L231 Difference]: Finished difference. Result has 76 places, 51 transitions, 414 flow [2025-03-09 01:09:22,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=414, PETRI_PLACES=76, PETRI_TRANSITIONS=51} [2025-03-09 01:09:22,377 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 30 predicate places. [2025-03-09 01:09:22,377 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 51 transitions, 414 flow [2025-03-09 01:09:22,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:22,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:22,378 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:22,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 01:09:22,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:22,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:22,379 INFO L85 PathProgramCache]: Analyzing trace with hash 430209522, now seen corresponding path program 1 times [2025-03-09 01:09:22,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:22,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673695138] [2025-03-09 01:09:22,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:22,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:22,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 01:09:22,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 01:09:22,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:22,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:22,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:22,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673695138] [2025-03-09 01:09:22,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673695138] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:22,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:22,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:09:22,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172564041] [2025-03-09 01:09:22,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:22,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:09:22,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:22,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:09:22,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:09:22,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:22,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 51 transitions, 414 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:22,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:22,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:22,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:23,392 INFO L124 PetriNetUnfolderBase]: 8744/13257 cut-off events. [2025-03-09 01:09:23,392 INFO L125 PetriNetUnfolderBase]: For 43855/43855 co-relation queries the response was YES. [2025-03-09 01:09:23,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40867 conditions, 13257 events. 8744/13257 cut-off events. For 43855/43855 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 81143 event pairs, 3095 based on Foata normal form. 240/13488 useless extension candidates. Maximal degree in co-relation 40841. Up to 5840 conditions per place. [2025-03-09 01:09:23,448 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 52 selfloop transitions, 7 changer transitions 49/113 dead transitions. [2025-03-09 01:09:23,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 113 transitions, 910 flow [2025-03-09 01:09:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:09:23,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:09:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 155 transitions. [2025-03-09 01:09:23,450 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5272108843537415 [2025-03-09 01:09:23,450 INFO L175 Difference]: Start difference. First operand has 76 places, 51 transitions, 414 flow. Second operand 7 states and 155 transitions. [2025-03-09 01:09:23,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 113 transitions, 910 flow [2025-03-09 01:09:23,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 113 transitions, 862 flow, removed 17 selfloop flow, removed 6 redundant places. [2025-03-09 01:09:23,541 INFO L231 Difference]: Finished difference. Result has 77 places, 49 transitions, 399 flow [2025-03-09 01:09:23,541 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=399, PETRI_PLACES=77, PETRI_TRANSITIONS=49} [2025-03-09 01:09:23,542 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 31 predicate places. [2025-03-09 01:09:23,542 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 49 transitions, 399 flow [2025-03-09 01:09:23,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:23,542 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:23,542 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:23,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 01:09:23,542 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:23,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1128077876, now seen corresponding path program 1 times [2025-03-09 01:09:23,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:23,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187855020] [2025-03-09 01:09:23,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:23,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:23,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:09:23,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:09:23,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:23,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:23,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:23,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:23,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187855020] [2025-03-09 01:09:23,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187855020] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:23,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:23,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:09:23,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46901606] [2025-03-09 01:09:23,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:23,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:09:23,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:23,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:09:23,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:09:23,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-03-09 01:09:23,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 49 transitions, 399 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:23,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:23,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-03-09 01:09:23,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:24,211 INFO L124 PetriNetUnfolderBase]: 6733/10674 cut-off events. [2025-03-09 01:09:24,212 INFO L125 PetriNetUnfolderBase]: For 32073/32073 co-relation queries the response was YES. [2025-03-09 01:09:24,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31266 conditions, 10674 events. 6733/10674 cut-off events. For 32073/32073 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 67973 event pairs, 1205 based on Foata normal form. 504/11169 useless extension candidates. Maximal degree in co-relation 31240. Up to 5881 conditions per place. [2025-03-09 01:09:24,243 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 85 selfloop transitions, 5 changer transitions 9/104 dead transitions. [2025-03-09 01:09:24,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 104 transitions, 1119 flow [2025-03-09 01:09:24,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:09:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:09:24,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 100 transitions. [2025-03-09 01:09:24,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2025-03-09 01:09:24,244 INFO L175 Difference]: Start difference. First operand has 77 places, 49 transitions, 399 flow. Second operand 4 states and 100 transitions. [2025-03-09 01:09:24,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 104 transitions, 1119 flow [2025-03-09 01:09:24,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 104 transitions, 1074 flow, removed 13 selfloop flow, removed 6 redundant places. [2025-03-09 01:09:24,270 INFO L231 Difference]: Finished difference. Result has 72 places, 52 transitions, 408 flow [2025-03-09 01:09:24,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=408, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2025-03-09 01:09:24,270 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2025-03-09 01:09:24,270 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 52 transitions, 408 flow [2025-03-09 01:09:24,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:24,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:24,271 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:24,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 01:09:24,271 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:24,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:24,271 INFO L85 PathProgramCache]: Analyzing trace with hash -176600139, now seen corresponding path program 1 times [2025-03-09 01:09:24,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:24,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925673512] [2025-03-09 01:09:24,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:24,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:24,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 01:09:24,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 01:09:24,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:24,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:24,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:24,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925673512] [2025-03-09 01:09:24,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925673512] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:24,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:24,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:09:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063605732] [2025-03-09 01:09:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:24,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:09:24,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:24,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:09:24,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:09:24,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-03-09 01:09:24,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 52 transitions, 408 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2025-03-09 01:09:24,364 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:24,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-03-09 01:09:24,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:24,782 INFO L124 PetriNetUnfolderBase]: 4148/6591 cut-off events. [2025-03-09 01:09:24,782 INFO L125 PetriNetUnfolderBase]: For 16208/16208 co-relation queries the response was YES. [2025-03-09 01:09:24,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20496 conditions, 6591 events. 4148/6591 cut-off events. For 16208/16208 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 38032 event pairs, 492 based on Foata normal form. 406/6988 useless extension candidates. Maximal degree in co-relation 20473. Up to 2285 conditions per place. [2025-03-09 01:09:24,798 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 86 selfloop transitions, 8 changer transitions 16/115 dead transitions. [2025-03-09 01:09:24,798 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 115 transitions, 1151 flow [2025-03-09 01:09:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:09:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 01:09:24,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 127 transitions. [2025-03-09 01:09:24,799 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6047619047619047 [2025-03-09 01:09:24,799 INFO L175 Difference]: Start difference. First operand has 72 places, 52 transitions, 408 flow. Second operand 5 states and 127 transitions. [2025-03-09 01:09:24,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 115 transitions, 1151 flow [2025-03-09 01:09:24,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 115 transitions, 1072 flow, removed 32 selfloop flow, removed 5 redundant places. [2025-03-09 01:09:24,812 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 395 flow [2025-03-09 01:09:24,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=395, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2025-03-09 01:09:24,813 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2025-03-09 01:09:24,813 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 395 flow [2025-03-09 01:09:24,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 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) [2025-03-09 01:09:24,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:24,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:24,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 01:09:24,813 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:24,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:24,814 INFO L85 PathProgramCache]: Analyzing trace with hash 649573170, now seen corresponding path program 1 times [2025-03-09 01:09:24,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:24,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315927770] [2025-03-09 01:09:24,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:24,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:24,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 01:09:24,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 01:09:24,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:24,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:24,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315927770] [2025-03-09 01:09:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315927770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:24,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:24,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:09:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856028347] [2025-03-09 01:09:24,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:24,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:09:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:24,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:09:24,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:09:24,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 42 [2025-03-09 01:09:24,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 395 flow. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:24,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:24,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 42 [2025-03-09 01:09:24,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:25,114 INFO L124 PetriNetUnfolderBase]: 2125/3386 cut-off events. [2025-03-09 01:09:25,114 INFO L125 PetriNetUnfolderBase]: For 9711/9711 co-relation queries the response was YES. [2025-03-09 01:09:25,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11349 conditions, 3386 events. 2125/3386 cut-off events. For 9711/9711 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 17567 event pairs, 305 based on Foata normal form. 164/3541 useless extension candidates. Maximal degree in co-relation 11328. Up to 1176 conditions per place. [2025-03-09 01:09:25,126 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 44 selfloop transitions, 11 changer transitions 39/99 dead transitions. [2025-03-09 01:09:25,126 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 99 transitions, 904 flow [2025-03-09 01:09:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:09:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:09:25,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2025-03-09 01:09:25,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2025-03-09 01:09:25,127 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 395 flow. Second operand 6 states and 130 transitions. [2025-03-09 01:09:25,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 99 transitions, 904 flow [2025-03-09 01:09:25,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 99 transitions, 859 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-03-09 01:09:25,141 INFO L231 Difference]: Finished difference. Result has 74 places, 38 transitions, 231 flow [2025-03-09 01:09:25,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=231, PETRI_PLACES=74, PETRI_TRANSITIONS=38} [2025-03-09 01:09:25,141 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2025-03-09 01:09:25,141 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 38 transitions, 231 flow [2025-03-09 01:09:25,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:25,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:09:25,142 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:25,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 01:09:25,142 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-09 01:09:25,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:09:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1198304186, now seen corresponding path program 1 times [2025-03-09 01:09:25,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:09:25,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362472306] [2025-03-09 01:09:25,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:09:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:09:25,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-09 01:09:25,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 01:09:25,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:09:25,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:09:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:09:25,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:09:25,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362472306] [2025-03-09 01:09:25,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362472306] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:09:25,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:09:25,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 01:09:25,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815284449] [2025-03-09 01:09:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:09:25,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:09:25,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:09:25,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:09:25,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:09:25,250 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2025-03-09 01:09:25,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 38 transitions, 231 flow. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:25,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:09:25,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2025-03-09 01:09:25,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:09:25,347 INFO L124 PetriNetUnfolderBase]: 371/599 cut-off events. [2025-03-09 01:09:25,347 INFO L125 PetriNetUnfolderBase]: For 1488/1488 co-relation queries the response was YES. [2025-03-09 01:09:25,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2041 conditions, 599 events. 371/599 cut-off events. For 1488/1488 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1936 event pairs, 119 based on Foata normal form. 8/606 useless extension candidates. Maximal degree in co-relation 2021. Up to 516 conditions per place. [2025-03-09 01:09:25,349 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2025-03-09 01:09:25,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 45 transitions, 335 flow [2025-03-09 01:09:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 01:09:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 01:09:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2025-03-09 01:09:25,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3611111111111111 [2025-03-09 01:09:25,350 INFO L175 Difference]: Start difference. First operand has 74 places, 38 transitions, 231 flow. Second operand 6 states and 91 transitions. [2025-03-09 01:09:25,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 45 transitions, 335 flow [2025-03-09 01:09:25,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 207 flow, removed 16 selfloop flow, removed 24 redundant places. [2025-03-09 01:09:25,352 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2025-03-09 01:09:25,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2025-03-09 01:09:25,352 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 6 predicate places. [2025-03-09 01:09:25,353 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2025-03-09 01:09:25,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:09:25,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-09 01:09:25,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-09 01:09:25,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-09 01:09:25,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-09 01:09:25,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-09 01:09:25,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 01:09:25,356 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:09:25,358 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 01:09:25,358 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:09:25,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:09:25 BasicIcfg [2025-03-09 01:09:25,361 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:09:25,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:09:25,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:09:25,362 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:09:25,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:09:15" (3/4) ... [2025-03-09 01:09:25,364 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 01:09:25,366 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-09 01:09:25,366 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-09 01:09:25,366 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-09 01:09:25,368 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2025-03-09 01:09:25,369 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-09 01:09:25,369 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-09 01:09:25,369 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 01:09:25,420 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:09:25,420 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:09:25,420 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:09:25,421 INFO L158 Benchmark]: Toolchain (without parser) took 10262.03ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 111.4MB in the beginning and 235.7MB in the end (delta: -124.4MB). Peak memory consumption was 441.6MB. Max. memory is 16.1GB. [2025-03-09 01:09:25,421 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:09:25,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.99ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.3MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:09:25,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.60ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 89.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:09:25,423 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 87.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:09:25,423 INFO L158 Benchmark]: IcfgBuilder took 334.07ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 68.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:09:25,423 INFO L158 Benchmark]: TraceAbstraction took 9470.00ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 68.0MB in the beginning and 244.1MB in the end (delta: -176.1MB). Peak memory consumption was 399.6MB. Max. memory is 16.1GB. [2025-03-09 01:09:25,424 INFO L158 Benchmark]: Witness Printer took 58.10ms. Allocated memory is still 713.0MB. Free memory was 244.1MB in the beginning and 235.7MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:09:25,424 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 is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.99ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 91.3MB in the end (delta: 19.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.60ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 89.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 87.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 334.07ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 68.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9470.00ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 68.0MB in the beginning and 244.1MB in the end (delta: -176.1MB). Peak memory consumption was 399.6MB. Max. memory is 16.1GB. * Witness Printer took 58.10ms. Allocated memory is still 713.0MB. Free memory was 244.1MB in the beginning and 235.7MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 769]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: 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 7 procedures, 64 locations, 62 edges, 5 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: 9.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 708 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 705 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1843 IncrementalHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 2 mSDtfsCounter, 1843 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=428occurred in iteration=5, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 211 ConstructedInterpolants, 0 QuantifiedInterpolants, 827 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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! [2025-03-09 01:09:25,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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