./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/rfi003_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:45:56,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:45:56,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:45:56,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:45:56,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:45:56,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:45:56,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:45:56,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:45:56,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:45:56,560 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:45:56,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:45:56,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:45:56,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:45:56,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:45:56,561 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:45:56,563 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:45:56,563 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:45:56,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:56,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:45:56,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:45:56,565 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:45:56,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:45:56,565 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 -> 503cbc793fb2369a7e5308c15a611fe38888f935ec98bb5d473194a0a60e31e4 [2025-02-06 12:45:56,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:45:56,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:45:56,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:45:56,818 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:45:56,818 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:45:56,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-02-06 12:45:58,110 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/42a06b98f/ac479e6bf05f4c9eafb347c48d3b57d1/FLAG16fc5da67 [2025-02-06 12:45:58,404 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:45:58,405 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi003_tso.i [2025-02-06 12:45:58,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/42a06b98f/ac479e6bf05f4c9eafb347c48d3b57d1/FLAG16fc5da67 [2025-02-06 12:45:58,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/42a06b98f/ac479e6bf05f4c9eafb347c48d3b57d1 [2025-02-06 12:45:58,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:45:58,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:45:58,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:58,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:45:58,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:45:58,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:58" (1/1) ... [2025-02-06 12:45:58,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7388eedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:58, skipping insertion in model container [2025-02-06 12:45:58,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:45:58" (1/1) ... [2025-02-06 12:45:58,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:45:58,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:58,933 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:45:59,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:45:59,038 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:45:59,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59 WrapperNode [2025-02-06 12:45:59,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:45:59,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:59,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:45:59,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:45:59,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,094 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 172 [2025-02-06 12:45:59,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:45:59,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:45:59,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:45:59,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:45:59,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,112 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,135 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 12:45:59,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,148 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:45:59,163 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:45:59,163 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:45:59,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:45:59,164 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (1/1) ... [2025-02-06 12:45:59,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:45:59,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:45:59,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:45:59,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:45:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:45:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:45:59,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:45:59,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:45:59,223 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:45:59,338 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:45:59,340 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:45:59,697 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:45:59,698 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:45:59,942 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:45:59,943 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:45:59,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:59 BoogieIcfgContainer [2025-02-06 12:45:59,943 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:45:59,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:45:59,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:45:59,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:45:59,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:45:58" (1/3) ... [2025-02-06 12:45:59,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f55fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:59, skipping insertion in model container [2025-02-06 12:45:59,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:45:59" (2/3) ... [2025-02-06 12:45:59,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f55fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:45:59, skipping insertion in model container [2025-02-06 12:45:59,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:59" (3/3) ... [2025-02-06 12:45:59,953 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi003_tso.i [2025-02-06 12:45:59,965 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:45:59,966 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi003_tso.i that has 3 procedures, 37 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-06 12:45:59,967 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:46:00,007 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:46:00,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 38 transitions, 84 flow [2025-02-06 12:46:00,056 INFO L124 PetriNetUnfolderBase]: 2/36 cut-off events. [2025-02-06 12:46:00,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:46:00,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 36 events. 2/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2025-02-06 12:46:00,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 38 transitions, 84 flow [2025-02-06 12:46:00,066 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 36 transitions, 78 flow [2025-02-06 12:46:00,073 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:46:00,084 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;@6f2268bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:46:00,084 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-06 12:46:00,091 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:46:00,091 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2025-02-06 12:46:00,091 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:46:00,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:00,092 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:00,093 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:00,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:00,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1633599629, now seen corresponding path program 1 times [2025-02-06 12:46:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:00,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59402556] [2025-02-06 12:46:00,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:00,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:00,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 12:46:00,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 12:46:00,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:00,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:00,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:00,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:00,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59402556] [2025-02-06 12:46:00,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59402556] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:00,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:00,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:46:00,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654974320] [2025-02-06 12:46:00,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:00,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:46:00,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:00,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:46:00,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:46:00,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2025-02-06 12:46:00,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:00,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:00,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2025-02-06 12:46:00,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:01,050 INFO L124 PetriNetUnfolderBase]: 927/1561 cut-off events. [2025-02-06 12:46:01,050 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-06 12:46:01,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3083 conditions, 1561 events. 927/1561 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 7889 event pairs, 189 based on Foata normal form. 112/1670 useless extension candidates. Maximal degree in co-relation 3073. Up to 1159 conditions per place. [2025-02-06 12:46:01,065 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 37 selfloop transitions, 2 changer transitions 2/47 dead transitions. [2025-02-06 12:46:01,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 182 flow [2025-02-06 12:46:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:46:01,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:46:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-06 12:46:01,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2025-02-06 12:46:01,077 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 78 flow. Second operand 3 states and 70 transitions. [2025-02-06 12:46:01,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 182 flow [2025-02-06 12:46:01,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:46:01,086 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2025-02-06 12:46:01,087 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=39, PETRI_TRANSITIONS=31} [2025-02-06 12:46:01,094 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2025-02-06 12:46:01,094 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2025-02-06 12:46:01,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:01,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:01,095 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:01,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:46:01,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:01,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash 455855663, now seen corresponding path program 1 times [2025-02-06 12:46:01,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:01,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997706543] [2025-02-06 12:46:01,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:01,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:01,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:46:01,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:46:01,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:01,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:01,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:01,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:01,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997706543] [2025-02-06 12:46:01,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997706543] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:01,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:01,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:46:01,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295196373] [2025-02-06 12:46:01,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:01,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:46:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:01,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:46:01,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:46:01,213 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:01,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:01,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:01,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:01,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:01,452 INFO L124 PetriNetUnfolderBase]: 830/1471 cut-off events. [2025-02-06 12:46:01,454 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-02-06 12:46:01,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2903 conditions, 1471 events. 830/1471 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7553 event pairs, 830 based on Foata normal form. 56/1517 useless extension candidates. Maximal degree in co-relation 2893. Up to 1349 conditions per place. [2025-02-06 12:46:01,462 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 23 selfloop transitions, 1 changer transitions 1/30 dead transitions. [2025-02-06 12:46:01,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 118 flow [2025-02-06 12:46:01,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:46:01,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:46:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2025-02-06 12:46:01,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41228070175438597 [2025-02-06 12:46:01,464 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 3 states and 47 transitions. [2025-02-06 12:46:01,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 118 flow [2025-02-06 12:46:01,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:46:01,465 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 64 flow [2025-02-06 12:46:01,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2025-02-06 12:46:01,465 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, -4 predicate places. [2025-02-06 12:46:01,465 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 64 flow [2025-02-06 12:46:01,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:01,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:01,466 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:01,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:46:01,466 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:01,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash 455856243, now seen corresponding path program 1 times [2025-02-06 12:46:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:01,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214079813] [2025-02-06 12:46:01,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:01,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 12:46:01,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 12:46:01,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:01,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:02,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:02,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214079813] [2025-02-06 12:46:02,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214079813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:02,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:02,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:46:02,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304307952] [2025-02-06 12:46:02,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:02,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:46:02,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:02,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:46:02,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:46:02,303 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:02,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 64 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:02,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:02,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:02,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:02,835 INFO L124 PetriNetUnfolderBase]: 885/1519 cut-off events. [2025-02-06 12:46:02,835 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:46:02,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2999 conditions, 1519 events. 885/1519 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7293 event pairs, 273 based on Foata normal form. 0/1488 useless extension candidates. Maximal degree in co-relation 2993. Up to 592 conditions per place. [2025-02-06 12:46:02,844 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 32 selfloop transitions, 2 changer transitions 53/91 dead transitions. [2025-02-06 12:46:02,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 91 transitions, 362 flow [2025-02-06 12:46:02,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:46:02,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:46:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2025-02-06 12:46:02,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4769736842105263 [2025-02-06 12:46:02,847 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 64 flow. Second operand 8 states and 145 transitions. [2025-02-06 12:46:02,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 91 transitions, 362 flow [2025-02-06 12:46:02,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 91 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:46:02,850 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 77 flow [2025-02-06 12:46:02,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=77, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2025-02-06 12:46:02,851 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2025-02-06 12:46:02,851 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 77 flow [2025-02-06 12:46:02,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:02,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:02,851 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:02,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:46:02,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:02,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:02,852 INFO L85 PathProgramCache]: Analyzing trace with hash -623339747, now seen corresponding path program 1 times [2025-02-06 12:46:02,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:02,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497309802] [2025-02-06 12:46:02,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:02,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:02,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:46:02,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:46:02,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:02,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:04,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:04,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497309802] [2025-02-06 12:46:04,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497309802] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:04,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:04,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:46:04,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153591103] [2025-02-06 12:46:04,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:04,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:46:04,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:04,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:46:04,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:46:04,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:04,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 77 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:04,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:04,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:04,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:04,611 INFO L124 PetriNetUnfolderBase]: 648/1147 cut-off events. [2025-02-06 12:46:04,612 INFO L125 PetriNetUnfolderBase]: For 232/232 co-relation queries the response was YES. [2025-02-06 12:46:04,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2534 conditions, 1147 events. 648/1147 cut-off events. For 232/232 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5218 event pairs, 327 based on Foata normal form. 28/1174 useless extension candidates. Maximal degree in co-relation 2522. Up to 901 conditions per place. [2025-02-06 12:46:04,619 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 38 selfloop transitions, 5 changer transitions 27/74 dead transitions. [2025-02-06 12:46:04,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 74 transitions, 324 flow [2025-02-06 12:46:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:46:04,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:46:04,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions. [2025-02-06 12:46:04,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2025-02-06 12:46:04,622 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 77 flow. Second operand 8 states and 128 transitions. [2025-02-06 12:46:04,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 74 transitions, 324 flow [2025-02-06 12:46:04,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 74 transitions, 302 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 12:46:04,628 INFO L231 Difference]: Finished difference. Result has 48 places, 32 transitions, 105 flow [2025-02-06 12:46:04,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=105, PETRI_PLACES=48, PETRI_TRANSITIONS=32} [2025-02-06 12:46:04,631 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 7 predicate places. [2025-02-06 12:46:04,631 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 32 transitions, 105 flow [2025-02-06 12:46:04,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:04,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:04,632 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:04,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:46:04,632 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:04,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:04,632 INFO L85 PathProgramCache]: Analyzing trace with hash 969488709, now seen corresponding path program 2 times [2025-02-06 12:46:04,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:04,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508713171] [2025-02-06 12:46:04,633 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:46:04,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:04,643 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:46:04,664 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:46:04,665 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:46:04,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:05,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:05,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:05,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508713171] [2025-02-06 12:46:05,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508713171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:05,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:05,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:46:05,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330394648] [2025-02-06 12:46:05,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:05,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:46:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:05,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:46:05,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:46:05,379 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:05,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 32 transitions, 105 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:05,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:05,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:05,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:05,757 INFO L124 PetriNetUnfolderBase]: 627/1106 cut-off events. [2025-02-06 12:46:05,758 INFO L125 PetriNetUnfolderBase]: For 348/348 co-relation queries the response was YES. [2025-02-06 12:46:05,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2627 conditions, 1106 events. 627/1106 cut-off events. For 348/348 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4931 event pairs, 319 based on Foata normal form. 28/1133 useless extension candidates. Maximal degree in co-relation 2613. Up to 859 conditions per place. [2025-02-06 12:46:05,763 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 38 selfloop transitions, 7 changer transitions 27/76 dead transitions. [2025-02-06 12:46:05,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 76 transitions, 362 flow [2025-02-06 12:46:05,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:46:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:46:05,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions. [2025-02-06 12:46:05,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41776315789473684 [2025-02-06 12:46:05,764 INFO L175 Difference]: Start difference. First operand has 48 places, 32 transitions, 105 flow. Second operand 8 states and 127 transitions. [2025-02-06 12:46:05,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 76 transitions, 362 flow [2025-02-06 12:46:05,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 76 transitions, 346 flow, removed 8 selfloop flow, removed 4 redundant places. [2025-02-06 12:46:05,768 INFO L231 Difference]: Finished difference. Result has 53 places, 34 transitions, 140 flow [2025-02-06 12:46:05,768 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=140, PETRI_PLACES=53, PETRI_TRANSITIONS=34} [2025-02-06 12:46:05,769 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 12 predicate places. [2025-02-06 12:46:05,769 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 34 transitions, 140 flow [2025-02-06 12:46:05,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:05,769 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:05,769 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:05,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:46:05,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:05,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:05,770 INFO L85 PathProgramCache]: Analyzing trace with hash 802784252, now seen corresponding path program 1 times [2025-02-06 12:46:05,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:05,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828277186] [2025-02-06 12:46:05,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:05,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:05,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:46:05,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:46:05,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:05,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:05,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:05,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828277186] [2025-02-06 12:46:05,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828277186] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:05,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:05,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:46:05,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058765220] [2025-02-06 12:46:05,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:05,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:46:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:05,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:46:05,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:46:05,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2025-02-06 12:46:05,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 34 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:05,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:05,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2025-02-06 12:46:05,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:06,066 INFO L124 PetriNetUnfolderBase]: 399/743 cut-off events. [2025-02-06 12:46:06,067 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2025-02-06 12:46:06,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1836 conditions, 743 events. 399/743 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3158 event pairs, 120 based on Foata normal form. 56/796 useless extension candidates. Maximal degree in co-relation 1818. Up to 304 conditions per place. [2025-02-06 12:46:06,070 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 49 selfloop transitions, 4 changer transitions 1/58 dead transitions. [2025-02-06 12:46:06,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 301 flow [2025-02-06 12:46:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:46:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:46:06,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-06 12:46:06,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5657894736842105 [2025-02-06 12:46:06,071 INFO L175 Difference]: Start difference. First operand has 53 places, 34 transitions, 140 flow. Second operand 4 states and 86 transitions. [2025-02-06 12:46:06,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 301 flow [2025-02-06 12:46:06,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 58 transitions, 261 flow, removed 8 selfloop flow, removed 10 redundant places. [2025-02-06 12:46:06,074 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 111 flow [2025-02-06 12:46:06,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2025-02-06 12:46:06,074 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 3 predicate places. [2025-02-06 12:46:06,074 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 111 flow [2025-02-06 12:46:06,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:06,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:06,074 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] [2025-02-06 12:46:06,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:46:06,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:06,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:06,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1171212925, now seen corresponding path program 1 times [2025-02-06 12:46:06,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:06,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531885903] [2025-02-06 12:46:06,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:06,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:06,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:46:06,128 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:46:06,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:06,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:07,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:07,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:07,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531885903] [2025-02-06 12:46:07,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531885903] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:07,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:07,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 12:46:07,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183812825] [2025-02-06 12:46:07,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:07,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 12:46:07,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:07,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 12:46:07,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 12:46:07,346 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:07,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 111 flow. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:07,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:07,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:07,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:07,960 INFO L124 PetriNetUnfolderBase]: 536/984 cut-off events. [2025-02-06 12:46:07,960 INFO L125 PetriNetUnfolderBase]: For 289/289 co-relation queries the response was YES. [2025-02-06 12:46:07,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2478 conditions, 984 events. 536/984 cut-off events. For 289/289 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4368 event pairs, 144 based on Foata normal form. 14/995 useless extension candidates. Maximal degree in co-relation 2465. Up to 448 conditions per place. [2025-02-06 12:46:07,964 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 58 selfloop transitions, 22 changer transitions 23/107 dead transitions. [2025-02-06 12:46:07,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 107 transitions, 563 flow [2025-02-06 12:46:07,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:46:07,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:46:07,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 169 transitions. [2025-02-06 12:46:07,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44473684210526315 [2025-02-06 12:46:07,965 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 111 flow. Second operand 10 states and 169 transitions. [2025-02-06 12:46:07,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 107 transitions, 563 flow [2025-02-06 12:46:07,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 107 transitions, 530 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-06 12:46:07,970 INFO L231 Difference]: Finished difference. Result has 57 places, 52 transitions, 256 flow [2025-02-06 12:46:07,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=256, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2025-02-06 12:46:07,971 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2025-02-06 12:46:07,971 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 256 flow [2025-02-06 12:46:07,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:07,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:07,971 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] [2025-02-06 12:46:07,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:46:07,971 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:07,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash -491824799, now seen corresponding path program 2 times [2025-02-06 12:46:07,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:07,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105544922] [2025-02-06 12:46:07,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:46:07,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:07,984 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-02-06 12:46:08,045 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 12:46:08,045 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:46:08,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:08,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:08,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105544922] [2025-02-06 12:46:08,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105544922] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:08,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:08,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:46:08,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844124660] [2025-02-06 12:46:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:08,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:46:08,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:08,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:46:08,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:46:08,173 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 38 [2025-02-06 12:46:08,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 256 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:08,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:08,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 38 [2025-02-06 12:46:08,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:08,330 INFO L124 PetriNetUnfolderBase]: 312/604 cut-off events. [2025-02-06 12:46:08,330 INFO L125 PetriNetUnfolderBase]: For 345/345 co-relation queries the response was YES. [2025-02-06 12:46:08,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 604 events. 312/604 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2510 event pairs, 90 based on Foata normal form. 46/647 useless extension candidates. Maximal degree in co-relation 1693. Up to 257 conditions per place. [2025-02-06 12:46:08,334 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 50 selfloop transitions, 6 changer transitions 9/69 dead transitions. [2025-02-06 12:46:08,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 435 flow [2025-02-06 12:46:08,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:46:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:46:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-02-06 12:46:08,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45263157894736844 [2025-02-06 12:46:08,338 INFO L175 Difference]: Start difference. First operand has 57 places, 52 transitions, 256 flow. Second operand 5 states and 86 transitions. [2025-02-06 12:46:08,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 435 flow [2025-02-06 12:46:08,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 69 transitions, 398 flow, removed 9 selfloop flow, removed 5 redundant places. [2025-02-06 12:46:08,341 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 213 flow [2025-02-06 12:46:08,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=213, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2025-02-06 12:46:08,342 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 15 predicate places. [2025-02-06 12:46:08,342 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 213 flow [2025-02-06 12:46:08,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:08,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:08,343 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:08,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 12:46:08,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:08,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:08,344 INFO L85 PathProgramCache]: Analyzing trace with hash -2102148875, now seen corresponding path program 1 times [2025-02-06 12:46:08,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:08,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060798556] [2025-02-06 12:46:08,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:46:08,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:08,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 12:46:08,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 12:46:08,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:46:08,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:08,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:08,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:08,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060798556] [2025-02-06 12:46:08,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060798556] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:08,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:08,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:46:08,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871221556] [2025-02-06 12:46:08,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:08,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:46:08,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:08,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:46:08,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:46:08,672 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:08,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:08,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:08,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:08,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:08,923 INFO L124 PetriNetUnfolderBase]: 254/504 cut-off events. [2025-02-06 12:46:08,923 INFO L125 PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES. [2025-02-06 12:46:08,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1441 conditions, 504 events. 254/504 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1928 event pairs, 65 based on Foata normal form. 4/505 useless extension candidates. Maximal degree in co-relation 1423. Up to 276 conditions per place. [2025-02-06 12:46:08,926 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 30 selfloop transitions, 1 changer transitions 42/77 dead transitions. [2025-02-06 12:46:08,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 488 flow [2025-02-06 12:46:08,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:46:08,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:46:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 90 transitions. [2025-02-06 12:46:08,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39473684210526316 [2025-02-06 12:46:08,928 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 213 flow. Second operand 6 states and 90 transitions. [2025-02-06 12:46:08,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 488 flow [2025-02-06 12:46:08,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 77 transitions, 428 flow, removed 12 selfloop flow, removed 7 redundant places. [2025-02-06 12:46:08,931 INFO L231 Difference]: Finished difference. Result has 58 places, 34 transitions, 127 flow [2025-02-06 12:46:08,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=127, PETRI_PLACES=58, PETRI_TRANSITIONS=34} [2025-02-06 12:46:08,931 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 17 predicate places. [2025-02-06 12:46:08,931 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 34 transitions, 127 flow [2025-02-06 12:46:08,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:08,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:46:08,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:46:08,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 12:46:08,932 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 3 more)] === [2025-02-06 12:46:08,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:46:08,933 INFO L85 PathProgramCache]: Analyzing trace with hash 2096642049, now seen corresponding path program 2 times [2025-02-06 12:46:08,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:46:08,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002470515] [2025-02-06 12:46:08,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:46:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:46:08,943 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-02-06 12:46:09,017 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 12:46:09,017 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:46:09,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:46:10,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:46:10,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:46:10,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002470515] [2025-02-06 12:46:10,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002470515] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:46:10,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:46:10,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:46:10,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841715796] [2025-02-06 12:46:10,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:46:10,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:46:10,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:46:10,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:46:10,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:46:10,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 38 [2025-02-06 12:46:10,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 34 transitions, 127 flow. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:10,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:46:10,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 38 [2025-02-06 12:46:10,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:46:11,318 INFO L124 PetriNetUnfolderBase]: 102/216 cut-off events. [2025-02-06 12:46:11,319 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2025-02-06 12:46:11,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 216 events. 102/216 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 616 event pairs, 21 based on Foata normal form. 4/217 useless extension candidates. Maximal degree in co-relation 567. Up to 61 conditions per place. [2025-02-06 12:46:11,320 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 0 selfloop transitions, 0 changer transitions 49/49 dead transitions. [2025-02-06 12:46:11,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 49 transitions, 259 flow [2025-02-06 12:46:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:46:11,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:46:11,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 114 transitions. [2025-02-06 12:46:11,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3 [2025-02-06 12:46:11,323 INFO L175 Difference]: Start difference. First operand has 58 places, 34 transitions, 127 flow. Second operand 10 states and 114 transitions. [2025-02-06 12:46:11,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 49 transitions, 259 flow [2025-02-06 12:46:11,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 49 transitions, 252 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-06 12:46:11,324 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2025-02-06 12:46:11,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2025-02-06 12:46:11,325 INFO L279 CegarLoopForPetriNet]: 41 programPoint places, 13 predicate places. [2025-02-06 12:46:11,325 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2025-02-06 12:46:11,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:46:11,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2025-02-06 12:46:11,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2025-02-06 12:46:11,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 6 remaining) [2025-02-06 12:46:11,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2025-02-06 12:46:11,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2025-02-06 12:46:11,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 6 remaining) [2025-02-06 12:46:11,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 12:46:11,330 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2025-02-06 12:46:11,334 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:46:11,335 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:46:11,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:46:11 BasicIcfg [2025-02-06 12:46:11,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:46:11,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:46:11,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:46:11,340 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:46:11,341 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:45:59" (3/4) ... [2025-02-06 12:46:11,342 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 12:46:11,346 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-06 12:46:11,347 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-06 12:46:11,351 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2025-02-06 12:46:11,351 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-02-06 12:46:11,351 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-02-06 12:46:11,351 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-06 12:46:11,412 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 12:46:11,413 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 12:46:11,413 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:46:11,414 INFO L158 Benchmark]: Toolchain (without parser) took 12968.40ms. Allocated memory was 142.6MB in the beginning and 486.5MB in the end (delta: 343.9MB). Free memory was 110.1MB in the beginning and 351.6MB in the end (delta: -241.5MB). Peak memory consumption was 99.1MB. Max. memory is 16.1GB. [2025-02-06 12:46:11,414 INFO L158 Benchmark]: CDTParser took 1.27ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:46:11,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.52ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 84.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 12:46:11,414 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.07ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 81.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:46:11,415 INFO L158 Benchmark]: Boogie Preprocessor took 67.19ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 77.3MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:46:11,416 INFO L158 Benchmark]: IcfgBuilder took 780.44ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 71.3MB in the end (delta: 6.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2025-02-06 12:46:11,416 INFO L158 Benchmark]: TraceAbstraction took 11394.66ms. Allocated memory was 142.6MB in the beginning and 486.5MB in the end (delta: 343.9MB). Free memory was 70.6MB in the beginning and 360.0MB in the end (delta: -289.4MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2025-02-06 12:46:11,417 INFO L158 Benchmark]: Witness Printer took 73.07ms. Allocated memory is still 486.5MB. Free memory was 360.0MB in the beginning and 351.6MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:46:11,418 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.52ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 84.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.07ms. Allocated memory is still 142.6MB. Free memory was 84.8MB in the beginning and 81.6MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.19ms. Allocated memory is still 142.6MB. Free memory was 81.2MB in the beginning and 77.3MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 780.44ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 71.3MB in the end (delta: 6.0MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11394.66ms. Allocated memory was 142.6MB in the beginning and 486.5MB in the end (delta: 343.9MB). Free memory was 70.6MB in the beginning and 360.0MB in the end (delta: -289.4MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Witness Printer took 73.07ms. Allocated memory is still 486.5MB. Free memory was 360.0MB in the beginning and 351.6MB in the end (delta: 8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 833]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 57 locations, 6 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: 11.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 402 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1739 IncrementalHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 2 mSDtfsCounter, 1739 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=7, InterpolantAutomatonStates: 65, 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, 0.4s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 1275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 12:46:11,439 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