./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:38:06,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:38:06,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:38:06,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:38:06,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:38:06,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:38:06,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:38:06,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:38:06,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:38:06,498 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:38:06,498 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:38:06,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:38:06,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:38:06,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:38:06,499 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:38:06,500 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:38:06,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:38:06,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:38:06,501 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2025-02-08 08:38:06,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:38:06,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:38:06,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:38:06,740 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:38:06,741 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:38:06,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-02-08 08:38:07,935 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/118b50f3f/cdce7411c45241509c8b7a4ccbc049f8/FLAG6891f8562 [2025-02-08 08:38:08,185 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:38:08,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2025-02-08 08:38:08,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/118b50f3f/cdce7411c45241509c8b7a4ccbc049f8/FLAG6891f8562 [2025-02-08 08:38:08,241 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/118b50f3f/cdce7411c45241509c8b7a4ccbc049f8 [2025-02-08 08:38:08,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:38:08,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:38:08,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:38:08,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:38:08,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:38:08,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cb03465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08, skipping insertion in model container [2025-02-08 08:38:08,252 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:38:08,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:38:08,382 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:38:08,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:38:08,417 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:38:08,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08 WrapperNode [2025-02-08 08:38:08,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:38:08,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:38:08,419 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:38:08,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:38:08,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,446 INFO L138 Inliner]: procedures = 19, calls = 15, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 142 [2025-02-08 08:38:08,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:38:08,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:38:08,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:38:08,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:38:08,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,460 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 08:38:08,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:38:08,466 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:38:08,466 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:38:08,466 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:38:08,467 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (1/1) ... [2025-02-08 08:38:08,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:38:08,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:38:08,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:38:08,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:38:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:38:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:38:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 08:38:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 08:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:38:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:38:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:38:08,516 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:38:08,570 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:38:08,571 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:38:08,711 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:38:08,711 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:38:08,814 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:38:08,814 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:38:08,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:38:08 BoogieIcfgContainer [2025-02-08 08:38:08,814 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:38:08,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:38:08,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:38:08,823 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:38:08,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:38:08" (1/3) ... [2025-02-08 08:38:08,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f39314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:38:08, skipping insertion in model container [2025-02-08 08:38:08,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:38:08" (2/3) ... [2025-02-08 08:38:08,824 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f39314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:38:08, skipping insertion in model container [2025-02-08 08:38:08,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:38:08" (3/3) ... [2025-02-08 08:38:08,825 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2025-02-08 08:38:08,837 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:38:08,839 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-3.wvr.c that has 4 procedures, 48 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:38:08,840 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:38:08,884 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 08:38:08,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 119 flow [2025-02-08 08:38:08,943 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2025-02-08 08:38:08,946 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:38:08,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2025-02-08 08:38:08,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 49 transitions, 119 flow [2025-02-08 08:38:08,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 45 transitions, 108 flow [2025-02-08 08:38:08,956 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:38:08,969 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;@27d401f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:38:08,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:38:08,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:38:08,980 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2025-02-08 08:38:08,980 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:38:08,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:08,981 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:08,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:08,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:08,989 INFO L85 PathProgramCache]: Analyzing trace with hash 723199695, now seen corresponding path program 1 times [2025-02-08 08:38:08,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:08,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255022850] [2025-02-08 08:38:08,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:38:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:09,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-08 08:38:09,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-08 08:38:09,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:38:09,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:09,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:09,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255022850] [2025-02-08 08:38:09,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255022850] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:09,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:09,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:38:09,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263866825] [2025-02-08 08:38:09,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:09,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:38:09,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:09,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:38:09,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:38:09,319 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:09,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:09,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:09,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:09,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:09,675 INFO L124 PetriNetUnfolderBase]: 1948/3041 cut-off events. [2025-02-08 08:38:09,675 INFO L125 PetriNetUnfolderBase]: For 210/210 co-relation queries the response was YES. [2025-02-08 08:38:09,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6116 conditions, 3041 events. 1948/3041 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16178 event pairs, 858 based on Foata normal form. 2/2896 useless extension candidates. Maximal degree in co-relation 5673. Up to 1547 conditions per place. [2025-02-08 08:38:09,738 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 51 selfloop transitions, 5 changer transitions 1/65 dead transitions. [2025-02-08 08:38:09,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 274 flow [2025-02-08 08:38:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:38:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:38:09,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-02-08 08:38:09,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6462585034013606 [2025-02-08 08:38:09,749 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 108 flow. Second operand 3 states and 95 transitions. [2025-02-08 08:38:09,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 274 flow [2025-02-08 08:38:09,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 08:38:09,760 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2025-02-08 08:38:09,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2025-02-08 08:38:09,764 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -5 predicate places. [2025-02-08 08:38:09,765 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2025-02-08 08:38:09,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:09,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:09,766 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:09,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:38:09,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:09,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:09,767 INFO L85 PathProgramCache]: Analyzing trace with hash -327464004, now seen corresponding path program 1 times [2025-02-08 08:38:09,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:09,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062782528] [2025-02-08 08:38:09,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:38:09,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:09,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 08:38:09,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:09,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:38:09,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:09,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:09,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062782528] [2025-02-08 08:38:09,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062782528] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:09,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:09,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:38:09,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137060868] [2025-02-08 08:38:09,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:09,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:38:09,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:09,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:38:09,850 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:38:09,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 49 [2025-02-08 08:38:09,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:09,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:09,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 49 [2025-02-08 08:38:09,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:10,101 INFO L124 PetriNetUnfolderBase]: 2293/3505 cut-off events. [2025-02-08 08:38:10,102 INFO L125 PetriNetUnfolderBase]: For 223/223 co-relation queries the response was YES. [2025-02-08 08:38:10,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7425 conditions, 3505 events. 2293/3505 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 17863 event pairs, 1673 based on Foata normal form. 0/3450 useless extension candidates. Maximal degree in co-relation 4808. Up to 3012 conditions per place. [2025-02-08 08:38:10,111 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 54 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2025-02-08 08:38:10,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 65 transitions, 291 flow [2025-02-08 08:38:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:38:10,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:38:10,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2025-02-08 08:38:10,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.564625850340136 [2025-02-08 08:38:10,112 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 83 transitions. [2025-02-08 08:38:10,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 65 transitions, 291 flow [2025-02-08 08:38:10,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 65 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:38:10,114 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2025-02-08 08:38:10,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2025-02-08 08:38:10,114 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2025-02-08 08:38:10,115 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2025-02-08 08:38:10,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:10,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:10,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:10,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:38:10,115 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:10,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:10,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2005740338, now seen corresponding path program 1 times [2025-02-08 08:38:10,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:10,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521244006] [2025-02-08 08:38:10,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:38:10,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:10,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-08 08:38:10,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:10,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:38:10,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:10,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:10,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521244006] [2025-02-08 08:38:10,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521244006] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:10,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:10,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:38:10,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557945368] [2025-02-08 08:38:10,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:10,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:38:10,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:10,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:38:10,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:38:10,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:10,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:10,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:10,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:10,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:10,651 INFO L124 PetriNetUnfolderBase]: 3201/5222 cut-off events. [2025-02-08 08:38:10,651 INFO L125 PetriNetUnfolderBase]: For 1671/1671 co-relation queries the response was YES. [2025-02-08 08:38:10,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11904 conditions, 5222 events. 3201/5222 cut-off events. For 1671/1671 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 32175 event pairs, 981 based on Foata normal form. 72/5237 useless extension candidates. Maximal degree in co-relation 7969. Up to 1990 conditions per place. [2025-02-08 08:38:10,672 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 81 selfloop transitions, 15 changer transitions 9/115 dead transitions. [2025-02-08 08:38:10,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 115 transitions, 558 flow [2025-02-08 08:38:10,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:38:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:38:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2025-02-08 08:38:10,674 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.636734693877551 [2025-02-08 08:38:10,674 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 5 states and 156 transitions. [2025-02-08 08:38:10,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 115 transitions, 558 flow [2025-02-08 08:38:10,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 115 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:38:10,680 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 227 flow [2025-02-08 08:38:10,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2025-02-08 08:38:10,681 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2025-02-08 08:38:10,681 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 227 flow [2025-02-08 08:38:10,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:10,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:10,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:10,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:38:10,682 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:10,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:10,682 INFO L85 PathProgramCache]: Analyzing trace with hash -816233172, now seen corresponding path program 2 times [2025-02-08 08:38:10,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:10,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044193092] [2025-02-08 08:38:10,683 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:38:10,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:10,690 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-02-08 08:38:10,697 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:10,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:38:10,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:10,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:10,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:10,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044193092] [2025-02-08 08:38:10,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044193092] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:10,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:10,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:38:10,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106757187] [2025-02-08 08:38:10,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:10,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:38:10,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:10,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:38:10,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:38:10,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:10,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:10,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:10,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:10,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:11,260 INFO L124 PetriNetUnfolderBase]: 2866/4823 cut-off events. [2025-02-08 08:38:11,261 INFO L125 PetriNetUnfolderBase]: For 2552/2554 co-relation queries the response was YES. [2025-02-08 08:38:11,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12452 conditions, 4823 events. 2866/4823 cut-off events. For 2552/2554 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 30282 event pairs, 837 based on Foata normal form. 74/4829 useless extension candidates. Maximal degree in co-relation 8543. Up to 1769 conditions per place. [2025-02-08 08:38:11,276 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 76 selfloop transitions, 17 changer transitions 13/116 dead transitions. [2025-02-08 08:38:11,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 116 transitions, 621 flow [2025-02-08 08:38:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:38:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:38:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2025-02-08 08:38:11,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2025-02-08 08:38:11,279 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 227 flow. Second operand 5 states and 154 transitions. [2025-02-08 08:38:11,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 116 transitions, 621 flow [2025-02-08 08:38:11,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 116 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:38:11,283 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 291 flow [2025-02-08 08:38:11,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2025-02-08 08:38:11,284 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-02-08 08:38:11,284 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 291 flow [2025-02-08 08:38:11,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:11,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:11,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:11,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:38:11,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:11,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:11,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1010169664, now seen corresponding path program 3 times [2025-02-08 08:38:11,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:11,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052686770] [2025-02-08 08:38:11,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:38:11,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:11,294 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 40 statements into 1 equivalence classes. [2025-02-08 08:38:11,306 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:11,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:38:11,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:11,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:11,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:11,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052686770] [2025-02-08 08:38:11,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052686770] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:11,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:11,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:38:11,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29569674] [2025-02-08 08:38:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:11,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:38:11,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:11,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:38:11,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:38:11,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:11,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:11,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:11,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:11,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:11,732 INFO L124 PetriNetUnfolderBase]: 1960/3369 cut-off events. [2025-02-08 08:38:11,732 INFO L125 PetriNetUnfolderBase]: For 3228/3228 co-relation queries the response was YES. [2025-02-08 08:38:11,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9560 conditions, 3369 events. 1960/3369 cut-off events. For 3228/3228 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 20023 event pairs, 502 based on Foata normal form. 36/3363 useless extension candidates. Maximal degree in co-relation 8261. Up to 1473 conditions per place. [2025-02-08 08:38:11,746 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 62 selfloop transitions, 24 changer transitions 32/128 dead transitions. [2025-02-08 08:38:11,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 128 transitions, 786 flow [2025-02-08 08:38:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:38:11,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:38:11,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 170 transitions. [2025-02-08 08:38:11,748 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5782312925170068 [2025-02-08 08:38:11,748 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 291 flow. Second operand 6 states and 170 transitions. [2025-02-08 08:38:11,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 128 transitions, 786 flow [2025-02-08 08:38:11,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 128 transitions, 745 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:38:11,753 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 342 flow [2025-02-08 08:38:11,754 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2025-02-08 08:38:11,755 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2025-02-08 08:38:11,755 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 342 flow [2025-02-08 08:38:11,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:11,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:11,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:11,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:38:11,757 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:11,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:11,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1290792522, now seen corresponding path program 4 times [2025-02-08 08:38:11,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:11,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468196155] [2025-02-08 08:38:11,759 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:38:11,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:11,765 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 40 statements into 2 equivalence classes. [2025-02-08 08:38:11,777 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:11,778 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:38:11,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:11,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:11,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468196155] [2025-02-08 08:38:11,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468196155] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:11,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:11,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:38:11,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976411511] [2025-02-08 08:38:11,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:11,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:38:11,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:11,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:38:11,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:38:11,954 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:11,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 342 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:11,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:11,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:11,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:12,226 INFO L124 PetriNetUnfolderBase]: 980/1724 cut-off events. [2025-02-08 08:38:12,227 INFO L125 PetriNetUnfolderBase]: For 1696/1696 co-relation queries the response was YES. [2025-02-08 08:38:12,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5128 conditions, 1724 events. 980/1724 cut-off events. For 1696/1696 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 8914 event pairs, 319 based on Foata normal form. 32/1731 useless extension candidates. Maximal degree in co-relation 1957. Up to 634 conditions per place. [2025-02-08 08:38:12,232 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 57 selfloop transitions, 20 changer transitions 24/111 dead transitions. [2025-02-08 08:38:12,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 111 transitions, 710 flow [2025-02-08 08:38:12,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:38:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:38:12,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 195 transitions. [2025-02-08 08:38:12,233 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49744897959183676 [2025-02-08 08:38:12,233 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 342 flow. Second operand 8 states and 195 transitions. [2025-02-08 08:38:12,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 111 transitions, 710 flow [2025-02-08 08:38:12,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 111 transitions, 688 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 08:38:12,236 INFO L231 Difference]: Finished difference. Result has 72 places, 58 transitions, 331 flow [2025-02-08 08:38:12,236 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=331, PETRI_PLACES=72, PETRI_TRANSITIONS=58} [2025-02-08 08:38:12,237 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 19 predicate places. [2025-02-08 08:38:12,237 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 58 transitions, 331 flow [2025-02-08 08:38:12,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:12,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:12,237 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:12,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:38:12,238 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:12,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash -468835198, now seen corresponding path program 5 times [2025-02-08 08:38:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:12,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471872199] [2025-02-08 08:38:12,238 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:38:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:12,244 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-02-08 08:38:12,249 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:12,249 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:38:12,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471872199] [2025-02-08 08:38:12,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471872199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:12,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:12,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:38:12,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702675506] [2025-02-08 08:38:12,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:12,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:38:12,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:12,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:38:12,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:38:12,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:12,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 58 transitions, 331 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:12,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:12,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:12,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:12,542 INFO L124 PetriNetUnfolderBase]: 675/1213 cut-off events. [2025-02-08 08:38:12,543 INFO L125 PetriNetUnfolderBase]: For 1984/1984 co-relation queries the response was YES. [2025-02-08 08:38:12,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3688 conditions, 1213 events. 675/1213 cut-off events. For 1984/1984 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5761 event pairs, 228 based on Foata normal form. 16/1216 useless extension candidates. Maximal degree in co-relation 1897. Up to 404 conditions per place. [2025-02-08 08:38:12,547 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 50 selfloop transitions, 14 changer transitions 25/97 dead transitions. [2025-02-08 08:38:12,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 97 transitions, 652 flow [2025-02-08 08:38:12,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:38:12,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:38:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 184 transitions. [2025-02-08 08:38:12,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46938775510204084 [2025-02-08 08:38:12,549 INFO L175 Difference]: Start difference. First operand has 72 places, 58 transitions, 331 flow. Second operand 8 states and 184 transitions. [2025-02-08 08:38:12,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 97 transitions, 652 flow [2025-02-08 08:38:12,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 97 transitions, 594 flow, removed 11 selfloop flow, removed 6 redundant places. [2025-02-08 08:38:12,553 INFO L231 Difference]: Finished difference. Result has 71 places, 48 transitions, 252 flow [2025-02-08 08:38:12,554 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=252, PETRI_PLACES=71, PETRI_TRANSITIONS=48} [2025-02-08 08:38:12,554 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2025-02-08 08:38:12,555 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 48 transitions, 252 flow [2025-02-08 08:38:12,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:12,555 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:38:12,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:38:12,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:38:12,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:38:12,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:38:12,556 INFO L85 PathProgramCache]: Analyzing trace with hash -186391676, now seen corresponding path program 2 times [2025-02-08 08:38:12,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:38:12,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643379696] [2025-02-08 08:38:12,557 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:38:12,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:38:12,563 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 40 statements into 1 equivalence classes. [2025-02-08 08:38:12,571 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-08 08:38:12,571 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:38:12,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:38:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:38:12,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:38:12,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643379696] [2025-02-08 08:38:12,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643379696] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:38:12,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:38:12,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:38:12,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964325035] [2025-02-08 08:38:12,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:38:12,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:38:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:38:12,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:38:12,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:38:12,648 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 49 [2025-02-08 08:38:12,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 48 transitions, 252 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:12,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:38:12,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 49 [2025-02-08 08:38:12,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:38:12,774 INFO L124 PetriNetUnfolderBase]: 185/377 cut-off events. [2025-02-08 08:38:12,774 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2025-02-08 08:38:12,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 377 events. 185/377 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1301 event pairs, 60 based on Foata normal form. 32/406 useless extension candidates. Maximal degree in co-relation 707. Up to 125 conditions per place. [2025-02-08 08:38:12,775 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2025-02-08 08:38:12,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 430 flow [2025-02-08 08:38:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:38:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:38:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 161 transitions. [2025-02-08 08:38:12,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4107142857142857 [2025-02-08 08:38:12,777 INFO L175 Difference]: Start difference. First operand has 71 places, 48 transitions, 252 flow. Second operand 8 states and 161 transitions. [2025-02-08 08:38:12,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 430 flow [2025-02-08 08:38:12,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 359 flow, removed 7 selfloop flow, removed 12 redundant places. [2025-02-08 08:38:12,779 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2025-02-08 08:38:12,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2025-02-08 08:38:12,779 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2025-02-08 08:38:12,781 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2025-02-08 08:38:12,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:38:12,783 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:38:12,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:38:12,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:38:12,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:38:12,784 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:38:12,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:38:12,784 INFO L422 BasicCegarLoop]: Path program histogram: [5, 2, 1] [2025-02-08 08:38:12,787 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:38:12,787 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:38:12,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:38:12 BasicIcfg [2025-02-08 08:38:12,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:38:12,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:38:12,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:38:12,794 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:38:12,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:38:08" (3/4) ... [2025-02-08 08:38:12,795 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:38:12,798 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 08:38:12,798 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 08:38:12,798 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 08:38:12,801 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2025-02-08 08:38:12,801 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-02-08 08:38:12,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 08:38:12,802 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:38:12,850 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:38:12,850 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:38:12,850 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:38:12,851 INFO L158 Benchmark]: Toolchain (without parser) took 4604.61ms. Allocated memory was 167.8MB in the beginning and 436.2MB in the end (delta: 268.4MB). Free memory was 124.0MB in the beginning and 211.2MB in the end (delta: -87.1MB). Peak memory consumption was 175.6MB. Max. memory is 16.1GB. [2025-02-08 08:38:12,852 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 201.3MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:38:12,852 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.16ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 112.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:38:12,852 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.94ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:38:12,853 INFO L158 Benchmark]: Boogie Preprocessor took 18.48ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 109.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:38:12,854 INFO L158 Benchmark]: IcfgBuilder took 348.30ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 79.5MB in the end (delta: 29.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 08:38:12,854 INFO L158 Benchmark]: TraceAbstraction took 3976.62ms. Allocated memory was 167.8MB in the beginning and 436.2MB in the end (delta: 268.4MB). Free memory was 78.7MB in the beginning and 215.4MB in the end (delta: -136.6MB). Peak memory consumption was 133.6MB. Max. memory is 16.1GB. [2025-02-08 08:38:12,854 INFO L158 Benchmark]: Witness Printer took 57.12ms. Allocated memory is still 436.2MB. Free memory was 215.4MB in the beginning and 211.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:38:12,855 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 201.3MB. Free memory is still 118.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 170.16ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 112.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.94ms. Allocated memory is still 167.8MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.48ms. Allocated memory is still 167.8MB. Free memory was 110.7MB in the beginning and 109.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 348.30ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 79.5MB in the end (delta: 29.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3976.62ms. Allocated memory was 167.8MB in the beginning and 436.2MB in the end (delta: 268.4MB). Free memory was 78.7MB in the beginning and 215.4MB in the end (delta: -136.6MB). Peak memory consumption was 133.6MB. Max. memory is 16.1GB. * Witness Printer took 57.12ms. Allocated memory is still 436.2MB. Free memory was 215.4MB in the beginning and 211.2MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 71]: 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, 75 locations, 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: 3.9s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 325 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1394 IncrementalHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 4 mSDtfsCounter, 1394 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred in iteration=5, InterpolantAutomatonStates: 46, 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, 0.9s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2025-02-08 08:38:12,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE