./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/rfi002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/rfi002_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:05:54,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:05:54,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:05:54,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:05:54,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:05:55,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:05:55,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:05:55,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:05:55,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:05:55,011 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:05:55,011 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:05:55,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:05:55,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:05:55,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:05:55,011 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:05:55,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:05:55,011 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:05:55,012 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:05:55,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:05:55,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:05:55,014 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48e6a57243e80a87d178da358ff4ad1dd63b86003507ef0dec3764d15038130a [2025-03-09 01:05:55,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:05:55,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:05:55,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:05:55,237 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:05:55,238 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:05:55,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2025-03-09 01:05:56,362 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fba3a6d/9e2c2f96915341eaa96eb3032320ddc6/FLAG3d15038e8 [2025-03-09 01:05:56,639 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:05:56,639 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_tso.i [2025-03-09 01:05:56,651 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fba3a6d/9e2c2f96915341eaa96eb3032320ddc6/FLAG3d15038e8 [2025-03-09 01:05:56,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4fba3a6d/9e2c2f96915341eaa96eb3032320ddc6 [2025-03-09 01:05:56,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:05:56,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:05:56,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:05:56,667 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:05:56,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:05:56,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:05:56" (1/1) ... [2025-03-09 01:05:56,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5788b833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:56, skipping insertion in model container [2025-03-09 01:05:56,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:05:56" (1/1) ... [2025-03-09 01:05:56,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:05:56,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:05:56,946 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:05:57,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:05:57,025 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:05:57,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57 WrapperNode [2025-03-09 01:05:57,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:05:57,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:05:57,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:05:57,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:05:57,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,058 INFO L138 Inliner]: procedures = 174, calls = 41, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 212 [2025-03-09 01:05:57,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:05:57,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:05:57,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:05:57,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:05:57,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,068 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,090 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:05:57,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,101 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:05:57,109 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:05:57,109 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:05:57,109 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:05:57,110 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (1/1) ... [2025-03-09 01:05:57,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:05:57,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:05:57,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 01:05:57,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 01:05:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 01:05:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:05:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 01:05:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 01:05:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 01:05:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 01:05:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:05:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 01:05:57,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:05:57,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:05:57,157 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:05:57,264 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:05:57,265 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:05:57,606 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:05:57,607 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:05:57,895 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:05:57,895 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:05:57,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:05:57 BoogieIcfgContainer [2025-03-09 01:05:57,896 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:05:57,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:05:57,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:05:57,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:05:57,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:05:56" (1/3) ... [2025-03-09 01:05:57,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1996602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:05:57, skipping insertion in model container [2025-03-09 01:05:57,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:05:57" (2/3) ... [2025-03-09 01:05:57,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1996602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:05:57, skipping insertion in model container [2025-03-09 01:05:57,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:05:57" (3/3) ... [2025-03-09 01:05:57,904 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi002_tso.i [2025-03-09 01:05:57,915 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:05:57,917 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi002_tso.i that has 3 procedures, 38 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-09 01:05:57,918 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:05:57,968 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 01:05:57,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 39 transitions, 86 flow [2025-03-09 01:05:58,019 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-03-09 01:05:58,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:05:58,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 37 events. 2/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 71 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2025-03-09 01:05:58,024 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 39 transitions, 86 flow [2025-03-09 01:05:58,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 37 transitions, 80 flow [2025-03-09 01:05:58,035 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:05:58,048 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;@194fe373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:05:58,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-03-09 01:05:58,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:05:58,054 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-09 01:05:58,054 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:05:58,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:05:58,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 01:05:58,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:05:58,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:05:58,060 INFO L85 PathProgramCache]: Analyzing trace with hash -779959803, now seen corresponding path program 1 times [2025-03-09 01:05:58,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:05:58,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324624001] [2025-03-09 01:05:58,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:05:58,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:05:58,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 01:05:58,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 01:05:58,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:05:58,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:05:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:05:58,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:05:58,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324624001] [2025-03-09 01:05:58,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324624001] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:05:58,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:05:58,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:05:58,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125993162] [2025-03-09 01:05:58,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:05:58,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:05:58,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:05:58,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:05:58,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:05:58,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-03-09 01:05:58,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 80 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:05:58,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:05:58,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-03-09 01:05:58,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:05:59,001 INFO L124 PetriNetUnfolderBase]: 1050/1726 cut-off events. [2025-03-09 01:05:59,001 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-03-09 01:05:59,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3441 conditions, 1726 events. 1050/1726 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 8725 event pairs, 66 based on Foata normal form. 126/1781 useless extension candidates. Maximal degree in co-relation 3431. Up to 1545 conditions per place. [2025-03-09 01:05:59,016 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 40 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2025-03-09 01:05:59,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 48 transitions, 186 flow [2025-03-09 01:05:59,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:05:59,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:05:59,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-03-09 01:05:59,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6068376068376068 [2025-03-09 01:05:59,028 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 80 flow. Second operand 3 states and 71 transitions. [2025-03-09 01:05:59,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 48 transitions, 186 flow [2025-03-09 01:05:59,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 48 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:05:59,034 INFO L231 Difference]: Finished difference. Result has 40 places, 33 transitions, 74 flow [2025-03-09 01:05:59,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=40, PETRI_TRANSITIONS=33} [2025-03-09 01:05:59,038 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -2 predicate places. [2025-03-09 01:05:59,040 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 33 transitions, 74 flow [2025-03-09 01:05:59,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:05:59,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:05:59,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:05:59,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:05:59,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:05:59,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:05:59,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1591050470, now seen corresponding path program 1 times [2025-03-09 01:05:59,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:05:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563691581] [2025-03-09 01:05:59,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:05:59,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:05:59,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 01:05:59,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 01:05:59,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:05:59,079 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:05:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:05:59,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:05:59,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563691581] [2025-03-09 01:05:59,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563691581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:05:59,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:05:59,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:05:59,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810995094] [2025-03-09 01:05:59,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:05:59,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:05:59,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:05:59,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:05:59,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:05:59,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-03-09 01:05:59,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 33 transitions, 74 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) [2025-03-09 01:05:59,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:05:59,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-03-09 01:05:59,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:05:59,550 INFO L124 PetriNetUnfolderBase]: 927/1561 cut-off events. [2025-03-09 01:05:59,550 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2025-03-09 01:05:59,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3153 conditions, 1561 events. 927/1561 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7946 event pairs, 189 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 3143. Up to 1159 conditions per place. [2025-03-09 01:05:59,559 INFO L140 encePairwiseOnDemand]: 36/39 looper letters, 37 selfloop transitions, 2 changer transitions 2/47 dead transitions. [2025-03-09 01:05:59,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 184 flow [2025-03-09 01:05:59,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:05:59,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:05:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-03-09 01:05:59,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2025-03-09 01:05:59,561 INFO L175 Difference]: Start difference. First operand has 40 places, 33 transitions, 74 flow. Second operand 3 states and 66 transitions. [2025-03-09 01:05:59,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 184 flow [2025-03-09 01:05:59,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 47 transitions, 180 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:05:59,562 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 70 flow [2025-03-09 01:05:59,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2025-03-09 01:05:59,563 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2025-03-09 01:05:59,563 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 70 flow [2025-03-09 01:05:59,563 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) [2025-03-09 01:05:59,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:05:59,563 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:05:59,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:05:59,563 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:05:59,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:05:59,564 INFO L85 PathProgramCache]: Analyzing trace with hash 790610734, now seen corresponding path program 1 times [2025-03-09 01:05:59,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:05:59,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202363309] [2025-03-09 01:05:59,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:05:59,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:05:59,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 01:05:59,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 01:05:59,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:05:59,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:05:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:05:59,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:05:59,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202363309] [2025-03-09 01:05:59,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202363309] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:05:59,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:05:59,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:05:59,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949839715] [2025-03-09 01:05:59,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:05:59,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:05:59,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:05:59,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:05:59,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:05:59,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:05:59,652 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) [2025-03-09 01:05:59,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:05:59,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:05:59,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:05:59,841 INFO L124 PetriNetUnfolderBase]: 830/1492 cut-off events. [2025-03-09 01:05:59,841 INFO L125 PetriNetUnfolderBase]: For 61/61 co-relation queries the response was YES. [2025-03-09 01:05:59,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2924 conditions, 1492 events. 830/1492 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7698 event pairs, 830 based on Foata normal form. 56/1540 useless extension candidates. Maximal degree in co-relation 2914. Up to 1349 conditions per place. [2025-03-09 01:05:59,847 INFO L140 encePairwiseOnDemand]: 37/39 looper letters, 23 selfloop transitions, 1 changer transitions 1/30 dead transitions. [2025-03-09 01:05:59,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 118 flow [2025-03-09 01:05:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:05:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:05:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 47 transitions. [2025-03-09 01:05:59,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4017094017094017 [2025-03-09 01:05:59,848 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 70 flow. Second operand 3 states and 47 transitions. [2025-03-09 01:05:59,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 118 flow [2025-03-09 01:05:59,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:05:59,849 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 64 flow [2025-03-09 01:05:59,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2025-03-09 01:05:59,850 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, -5 predicate places. [2025-03-09 01:05:59,850 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 64 flow [2025-03-09 01:05:59,850 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) [2025-03-09 01:05:59,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:05:59,850 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:05:59,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:05:59,850 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:05:59,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:05:59,851 INFO L85 PathProgramCache]: Analyzing trace with hash 790611213, now seen corresponding path program 1 times [2025-03-09 01:05:59,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:05:59,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123073597] [2025-03-09 01:05:59,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:05:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:05:59,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 01:05:59,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 01:05:59,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:05:59,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:00,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:00,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:00,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123073597] [2025-03-09 01:06:00,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123073597] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:00,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:00,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 01:06:00,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304909191] [2025-03-09 01:06:00,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:00,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 01:06:00,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:00,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 01:06:00,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 01:06:00,348 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:06:00,349 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) [2025-03-09 01:06:00,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:00,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:06:00,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:00,828 INFO L124 PetriNetUnfolderBase]: 909/1567 cut-off events. [2025-03-09 01:06:00,828 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:06:00,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3087 conditions, 1567 events. 909/1567 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7850 event pairs, 238 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 3081. Up to 697 conditions per place. [2025-03-09 01:06:00,834 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 35 selfloop transitions, 2 changer transitions 56/97 dead transitions. [2025-03-09 01:06:00,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 97 transitions, 388 flow [2025-03-09 01:06:00,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 01:06:00,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-09 01:06:00,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2025-03-09 01:06:00,839 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.483974358974359 [2025-03-09 01:06:00,839 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 64 flow. Second operand 8 states and 151 transitions. [2025-03-09 01:06:00,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 97 transitions, 388 flow [2025-03-09 01:06:00,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 97 transitions, 387 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 01:06:00,842 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 77 flow [2025-03-09 01:06:00,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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} [2025-03-09 01:06:00,842 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2025-03-09 01:06:00,842 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 77 flow [2025-03-09 01:06:00,843 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) [2025-03-09 01:06:00,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:00,843 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:00,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:06:00,843 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:00,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:00,844 INFO L85 PathProgramCache]: Analyzing trace with hash -53267261, now seen corresponding path program 1 times [2025-03-09 01:06:00,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:00,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721855814] [2025-03-09 01:06:00,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:06:00,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:00,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 01:06:00,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 01:06:00,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:06:00,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:01,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:01,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721855814] [2025-03-09 01:06:01,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721855814] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:01,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:01,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:06:01,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732456350] [2025-03-09 01:06:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:01,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:06:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:01,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:06:01,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:06:01,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:06:01,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:01,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:01,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:06:01,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:01,402 INFO L124 PetriNetUnfolderBase]: 619/1081 cut-off events. [2025-03-09 01:06:01,402 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2025-03-09 01:06:01,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2405 conditions, 1081 events. 619/1081 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4741 event pairs, 200 based on Foata normal form. 32/1112 useless extension candidates. Maximal degree in co-relation 2393. Up to 619 conditions per place. [2025-03-09 01:06:01,406 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 32 selfloop transitions, 2 changer transitions 29/67 dead transitions. [2025-03-09 01:06:01,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 67 transitions, 294 flow [2025-03-09 01:06:01,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:06:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:06:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 114 transitions. [2025-03-09 01:06:01,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2025-03-09 01:06:01,407 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 77 flow. Second operand 7 states and 114 transitions. [2025-03-09 01:06:01,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 67 transitions, 294 flow [2025-03-09 01:06:01,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 67 transitions, 272 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-09 01:06:01,411 INFO L231 Difference]: Finished difference. Result has 46 places, 28 transitions, 81 flow [2025-03-09 01:06:01,411 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, 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=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=81, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2025-03-09 01:06:01,412 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2025-03-09 01:06:01,412 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 28 transitions, 81 flow [2025-03-09 01:06:01,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:01,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:01,412 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:01,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 01:06:01,412 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:01,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:01,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1571496288, now seen corresponding path program 1 times [2025-03-09 01:06:01,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:01,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795280551] [2025-03-09 01:06:01,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:06:01,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:01,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:06:01,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:06:01,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:06:01,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:03,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:03,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:03,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795280551] [2025-03-09 01:06:03,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795280551] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:03,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:03,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-09 01:06:03,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785039051] [2025-03-09 01:06:03,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:03,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 01:06:03,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:03,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 01:06:03,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-09 01:06:03,256 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:06:03,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 28 transitions, 81 flow. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:03,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:03,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:06:03,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:04,668 INFO L124 PetriNetUnfolderBase]: 718/1246 cut-off events. [2025-03-09 01:06:04,669 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-03-09 01:06:04,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2850 conditions, 1246 events. 718/1246 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5557 event pairs, 87 based on Foata normal form. 20/1265 useless extension candidates. Maximal degree in co-relation 2837. Up to 802 conditions per place. [2025-03-09 01:06:04,674 INFO L140 encePairwiseOnDemand]: 26/39 looper letters, 66 selfloop transitions, 46 changer transitions 21/137 dead transitions. [2025-03-09 01:06:04,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 137 transitions, 595 flow [2025-03-09 01:06:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-09 01:06:04,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-03-09 01:06:04,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 254 transitions. [2025-03-09 01:06:04,676 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38310708898944196 [2025-03-09 01:06:04,676 INFO L175 Difference]: Start difference. First operand has 46 places, 28 transitions, 81 flow. Second operand 17 states and 254 transitions. [2025-03-09 01:06:04,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 137 transitions, 595 flow [2025-03-09 01:06:04,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 137 transitions, 567 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-09 01:06:04,684 INFO L231 Difference]: Finished difference. Result has 57 places, 79 transitions, 326 flow [2025-03-09 01:06:04,684 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=326, PETRI_PLACES=57, PETRI_TRANSITIONS=79} [2025-03-09 01:06:04,684 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 01:06:04,684 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 79 transitions, 326 flow [2025-03-09 01:06:04,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:04,685 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:04,685 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:04,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 01:06:04,685 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:04,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash -257423604, now seen corresponding path program 2 times [2025-03-09 01:06:04,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:04,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241979257] [2025-03-09 01:06:04,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:06:04,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:04,693 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-03-09 01:06:04,751 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 01:06:04,753 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:06:04,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:04,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:04,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:04,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241979257] [2025-03-09 01:06:04,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241979257] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:04,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:04,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:06:04,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706699315] [2025-03-09 01:06:04,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:04,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:06:04,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:04,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:06:04,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:06:04,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-03-09 01:06:04,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 79 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:04,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:04,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-03-09 01:06:04,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:05,077 INFO L124 PetriNetUnfolderBase]: 473/864 cut-off events. [2025-03-09 01:06:05,077 INFO L125 PetriNetUnfolderBase]: For 250/250 co-relation queries the response was YES. [2025-03-09 01:06:05,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2321 conditions, 864 events. 473/864 cut-off events. For 250/250 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3687 event pairs, 94 based on Foata normal form. 71/934 useless extension candidates. Maximal degree in co-relation 2307. Up to 319 conditions per place. [2025-03-09 01:06:05,081 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 84 selfloop transitions, 4 changer transitions 1/93 dead transitions. [2025-03-09 01:06:05,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 93 transitions, 542 flow [2025-03-09 01:06:05,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:06:05,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:06:05,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-03-09 01:06:05,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2025-03-09 01:06:05,082 INFO L175 Difference]: Start difference. First operand has 57 places, 79 transitions, 326 flow. Second operand 4 states and 86 transitions. [2025-03-09 01:06:05,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 93 transitions, 542 flow [2025-03-09 01:06:05,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 93 transitions, 534 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-09 01:06:05,086 INFO L231 Difference]: Finished difference. Result has 52 places, 63 transitions, 266 flow [2025-03-09 01:06:05,087 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=52, PETRI_TRANSITIONS=63} [2025-03-09 01:06:05,088 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2025-03-09 01:06:05,088 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 63 transitions, 266 flow [2025-03-09 01:06:05,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:05,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:05,089 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:05,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 01:06:05,089 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:05,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1095684827, now seen corresponding path program 1 times [2025-03-09 01:06:05,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:05,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215385097] [2025-03-09 01:06:05,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:06:05,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:05,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 01:06:05,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 01:06:05,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:06:05,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:05,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:05,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215385097] [2025-03-09 01:06:05,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215385097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:05,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:05,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 01:06:05,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651478850] [2025-03-09 01:06:05,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:05,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:06:05,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:05,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:06:05,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 01:06:05,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 39 [2025-03-09 01:06:05,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 63 transitions, 266 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:05,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:05,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 39 [2025-03-09 01:06:05,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:05,461 INFO L124 PetriNetUnfolderBase]: 255/477 cut-off events. [2025-03-09 01:06:05,461 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2025-03-09 01:06:05,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1401 conditions, 477 events. 255/477 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1734 event pairs, 61 based on Foata normal form. 30/506 useless extension candidates. Maximal degree in co-relation 1387. Up to 199 conditions per place. [2025-03-09 01:06:05,464 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 65 selfloop transitions, 6 changer transitions 1/76 dead transitions. [2025-03-09 01:06:05,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 76 transitions, 449 flow [2025-03-09 01:06:05,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 01:06:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 01:06:05,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-03-09 01:06:05,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.441025641025641 [2025-03-09 01:06:05,465 INFO L175 Difference]: Start difference. First operand has 52 places, 63 transitions, 266 flow. Second operand 5 states and 86 transitions. [2025-03-09 01:06:05,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 76 transitions, 449 flow [2025-03-09 01:06:05,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 76 transitions, 400 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-03-09 01:06:05,467 INFO L231 Difference]: Finished difference. Result has 52 places, 56 transitions, 219 flow [2025-03-09 01:06:05,467 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=52, PETRI_TRANSITIONS=56} [2025-03-09 01:06:05,472 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2025-03-09 01:06:05,473 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 56 transitions, 219 flow [2025-03-09 01:06:05,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:05,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:05,473 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:05,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 01:06:05,474 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:05,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:05,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1777726077, now seen corresponding path program 1 times [2025-03-09 01:06:05,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:05,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094643721] [2025-03-09 01:06:05,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:06:05,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:05,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 01:06:05,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 01:06:05,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:06:05,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:06,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:06,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:06,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094643721] [2025-03-09 01:06:06,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094643721] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:06,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:06,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 01:06:06,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677353282] [2025-03-09 01:06:06,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:06,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 01:06:06,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:06,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 01:06:06,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-09 01:06:06,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:06:06,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 56 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:06,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:06,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:06:06,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:06,364 INFO L124 PetriNetUnfolderBase]: 291/553 cut-off events. [2025-03-09 01:06:06,365 INFO L125 PetriNetUnfolderBase]: For 297/297 co-relation queries the response was YES. [2025-03-09 01:06:06,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 553 events. 291/553 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2083 event pairs, 45 based on Foata normal form. 4/556 useless extension candidates. Maximal degree in co-relation 1509. Up to 266 conditions per place. [2025-03-09 01:06:06,367 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 41 selfloop transitions, 17 changer transitions 26/88 dead transitions. [2025-03-09 01:06:06,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 88 transitions, 510 flow [2025-03-09 01:06:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:06:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:06:06,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 107 transitions. [2025-03-09 01:06:06,368 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39194139194139194 [2025-03-09 01:06:06,368 INFO L175 Difference]: Start difference. First operand has 52 places, 56 transitions, 219 flow. Second operand 7 states and 107 transitions. [2025-03-09 01:06:06,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 88 transitions, 510 flow [2025-03-09 01:06:06,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 88 transitions, 453 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-09 01:06:06,373 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 255 flow [2025-03-09 01:06:06,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2025-03-09 01:06:06,373 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2025-03-09 01:06:06,373 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 255 flow [2025-03-09 01:06:06,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:06,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:06,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:06,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 01:06:06,374 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:06,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:06,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1217474993, now seen corresponding path program 2 times [2025-03-09 01:06:06,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:06,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697654146] [2025-03-09 01:06:06,374 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 01:06:06,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:06,387 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 26 statements into 1 equivalence classes. [2025-03-09 01:06:06,432 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 01:06:06,432 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 01:06:06,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:07,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:07,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:07,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697654146] [2025-03-09 01:06:07,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697654146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:07,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:07,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 01:06:07,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144194002] [2025-03-09 01:06:07,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:07,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 01:06:07,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:07,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 01:06:07,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-09 01:06:07,177 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:06:07,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 255 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2025-03-09 01:06:07,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:07,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:06:07,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:07,451 INFO L124 PetriNetUnfolderBase]: 226/444 cut-off events. [2025-03-09 01:06:07,451 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2025-03-09 01:06:07,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 444 events. 226/444 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1502 event pairs, 53 based on Foata normal form. 4/447 useless extension candidates. Maximal degree in co-relation 1199. Up to 192 conditions per place. [2025-03-09 01:06:07,454 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 48 selfloop transitions, 18 changer transitions 32/102 dead transitions. [2025-03-09 01:06:07,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 102 transitions, 592 flow [2025-03-09 01:06:07,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 01:06:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-09 01:06:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 158 transitions. [2025-03-09 01:06:07,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33760683760683763 [2025-03-09 01:06:07,455 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 255 flow. Second operand 12 states and 158 transitions. [2025-03-09 01:06:07,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 102 transitions, 592 flow [2025-03-09 01:06:07,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 102 transitions, 582 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-03-09 01:06:07,457 INFO L231 Difference]: Finished difference. Result has 66 places, 55 transitions, 293 flow [2025-03-09 01:06:07,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=293, PETRI_PLACES=66, PETRI_TRANSITIONS=55} [2025-03-09 01:06:07,459 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 24 predicate places. [2025-03-09 01:06:07,460 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 293 flow [2025-03-09 01:06:07,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2025-03-09 01:06:07,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:06:07,460 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:07,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 01:06:07,460 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P1Err1ASSERT_VIOLATIONMEMORY_LEAK, P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2025-03-09 01:06:07,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:06:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1757601227, now seen corresponding path program 3 times [2025-03-09 01:06:07,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:06:07,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703750025] [2025-03-09 01:06:07,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 01:06:07,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:06:07,470 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 1 equivalence classes. [2025-03-09 01:06:07,518 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 01:06:07,518 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-09 01:06:07,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:06:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:06:08,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:06:08,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703750025] [2025-03-09 01:06:08,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703750025] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:06:08,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:06:08,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-09 01:06:08,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395830239] [2025-03-09 01:06:09,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:06:09,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 01:06:09,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:06:09,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 01:06:09,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-09 01:06:09,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 39 [2025-03-09 01:06:09,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 293 flow. Second operand has 11 states, 11 states have (on average 9.0) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:09,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:06:09,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 39 [2025-03-09 01:06:09,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:06:09,352 INFO L124 PetriNetUnfolderBase]: 147/281 cut-off events. [2025-03-09 01:06:09,352 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2025-03-09 01:06:09,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 281 events. 147/281 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 810 event pairs, 12 based on Foata normal form. 4/284 useless extension candidates. Maximal degree in co-relation 888. Up to 127 conditions per place. [2025-03-09 01:06:09,353 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2025-03-09 01:06:09,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 438 flow [2025-03-09 01:06:09,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 01:06:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 01:06:09,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 85 transitions. [2025-03-09 01:06:09,356 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31135531135531136 [2025-03-09 01:06:09,356 INFO L175 Difference]: Start difference. First operand has 66 places, 55 transitions, 293 flow. Second operand 7 states and 85 transitions. [2025-03-09 01:06:09,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 438 flow [2025-03-09 01:06:09,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 388 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-03-09 01:06:09,358 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2025-03-09 01:06:09,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2025-03-09 01:06:09,358 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 01:06:09,358 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2025-03-09 01:06:09,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.0) internal successors, (99), 11 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (1 of 8 remaining) [2025-03-09 01:06:09,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 8 remaining) [2025-03-09 01:06:09,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 01:06:09,362 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 01:06:09,365 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 01:06:09,365 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:06:09,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:06:09 BasicIcfg [2025-03-09 01:06:09,371 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:06:09,372 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:06:09,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:06:09,372 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:06:09,373 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:05:57" (3/4) ... [2025-03-09 01:06:09,374 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 01:06:09,376 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-09 01:06:09,376 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-09 01:06:09,379 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-03-09 01:06:09,379 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-09 01:06:09,379 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-03-09 01:06:09,379 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 01:06:09,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:06:09,439 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:06:09,439 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:06:09,439 INFO L158 Benchmark]: Toolchain (without parser) took 12774.59ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 103.8MB in the beginning and 569.9MB in the end (delta: -466.0MB). Peak memory consumption was 92.7MB. Max. memory is 16.1GB. [2025-03-09 01:06:09,440 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:06:09,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.23ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 75.5MB in the end (delta: 28.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:06:09,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.40ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 72.3MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:06:09,441 INFO L158 Benchmark]: Boogie Preprocessor took 49.77ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 67.1MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:06:09,441 INFO L158 Benchmark]: IcfgBuilder took 786.78ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 102.9MB in the end (delta: -35.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2025-03-09 01:06:09,441 INFO L158 Benchmark]: TraceAbstraction took 11474.17ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 102.9MB in the beginning and 574.0MB in the end (delta: -471.1MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2025-03-09 01:06:09,441 INFO L158 Benchmark]: Witness Printer took 67.17ms. Allocated memory is still 704.6MB. Free memory was 574.0MB in the beginning and 569.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:06:09,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.23ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 75.5MB in the end (delta: 28.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.40ms. Allocated memory is still 142.6MB. Free memory was 75.5MB in the beginning and 72.3MB in the end (delta: 3.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.77ms. Allocated memory is still 142.6MB. Free memory was 72.3MB in the beginning and 67.1MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 786.78ms. Allocated memory is still 142.6MB. Free memory was 67.1MB in the beginning and 102.9MB in the end (delta: -35.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11474.17ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 102.9MB in the beginning and 574.0MB in the end (delta: -471.1MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. * Witness Printer took 67.17ms. Allocated memory is still 704.6MB. Free memory was 574.0MB in the beginning and 569.9MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 874]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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, 59 locations, 58 edges, 8 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: 11.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 513 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 509 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 107 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1550 IncrementalHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 107 mSolverCounterUnsat, 5 mSDtfsCounter, 1550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=6, InterpolantAutomatonStates: 76, 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, 0.5s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 188 ConstructedInterpolants, 0 QuantifiedInterpolants, 1750 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 01:06:09,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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