./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe008_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 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/safe008_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 3447fa4cbed8c2dd9f8bb92c4d44acca15639ccfd4d81b58d710cf11090f115c --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 09:55:00,374 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 09:55:00,426 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 09:55:00,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 09:55:00,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 09:55:00,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 09:55:00,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 09:55:00,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 09:55:00,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 09:55:00,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 09:55:00,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 09:55:00,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 09:55:00,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 09:55:00,460 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:55:00,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 09:55:00,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 09:55:00,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 09:55:00,461 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 09:55:00,461 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 -> 3447fa4cbed8c2dd9f8bb92c4d44acca15639ccfd4d81b58d710cf11090f115c [2025-03-04 09:55:00,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 09:55:00,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 09:55:00,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 09:55:00,673 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 09:55:00,674 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 09:55:00,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe008_tso.i [2025-03-04 09:55:01,863 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faaf6a5f6/24cd371f25344609b7f8ee93ebf0c038/FLAG68ecac0f2 [2025-03-04 09:55:02,168 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 09:55:02,168 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe008_tso.i [2025-03-04 09:55:02,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faaf6a5f6/24cd371f25344609b7f8ee93ebf0c038/FLAG68ecac0f2 [2025-03-04 09:55:02,435 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faaf6a5f6/24cd371f25344609b7f8ee93ebf0c038 [2025-03-04 09:55:02,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 09:55:02,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 09:55:02,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 09:55:02,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 09:55:02,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 09:55:02,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0d30d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02, skipping insertion in model container [2025-03-04 09:55:02,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 09:55:02,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:55:02,732 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 09:55:02,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 09:55:02,793 INFO L204 MainTranslator]: Completed translation [2025-03-04 09:55:02,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02 WrapperNode [2025-03-04 09:55:02,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 09:55:02,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 09:55:02,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 09:55:02,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 09:55:02,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,825 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-03-04 09:55:02,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 09:55:02,826 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 09:55:02,826 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 09:55:02,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 09:55:02,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,849 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]. [2025-03-04 09:55:02,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,850 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,852 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,856 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 09:55:02,857 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 09:55:02,857 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 09:55:02,857 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 09:55:02,857 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (1/1) ... [2025-03-04 09:55:02,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 09:55:02,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 09:55:02,885 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) [2025-03-04 09:55:02,888 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 [2025-03-04 09:55:02,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 09:55:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 09:55:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 09:55:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 09:55:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 09:55:02,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 09:55:02,909 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 09:55:02,994 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 09:55:02,996 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 09:55:03,096 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 09:55:03,096 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 09:55:03,163 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 09:55:03,163 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 09:55:03,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:55:03 BoogieIcfgContainer [2025-03-04 09:55:03,163 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 09:55:03,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 09:55:03,166 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 09:55:03,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 09:55:03,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 09:55:02" (1/3) ... [2025-03-04 09:55:03,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563eb1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:55:03, skipping insertion in model container [2025-03-04 09:55:03,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 09:55:02" (2/3) ... [2025-03-04 09:55:03,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563eb1ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 09:55:03, skipping insertion in model container [2025-03-04 09:55:03,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:55:03" (3/3) ... [2025-03-04 09:55:03,172 INFO L128 eAbstractionObserver]: Analyzing ICFG safe008_tso.i [2025-03-04 09:55:03,184 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 09:55:03,186 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe008_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 09:55:03,186 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 09:55:03,229 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 09:55:03,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-03-04 09:55:03,286 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-03-04 09:55:03,288 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:55:03,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-03-04 09:55:03,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-03-04 09:55:03,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-03-04 09:55:03,303 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 09:55:03,311 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;@2c4eb14e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 09:55:03,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-04 09:55:03,323 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 09:55:03,323 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-03-04 09:55:03,323 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:55:03,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:03,324 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:03,324 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:03,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:03,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1029472030, now seen corresponding path program 1 times [2025-03-04 09:55:03,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:03,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954079485] [2025-03-04 09:55:03,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:03,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:03,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:55:03,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:55:03,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:03,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:03,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:03,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954079485] [2025-03-04 09:55:03,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954079485] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:03,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:03,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 09:55:03,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478967076] [2025-03-04 09:55:03,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:03,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 09:55:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:03,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 09:55:03,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 09:55:03,580 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:03,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:03,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:03,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:03,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:04,156 INFO L124 PetriNetUnfolderBase]: 4775/7427 cut-off events. [2025-03-04 09:55:04,156 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-03-04 09:55:04,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14322 conditions, 7427 events. 4775/7427 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 43781 event pairs, 4775 based on Foata normal form. 648/8026 useless extension candidates. Maximal degree in co-relation 14311. Up to 6804 conditions per place. [2025-03-04 09:55:04,203 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-03-04 09:55:04,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-03-04 09:55:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 09:55:04,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 09:55:04,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-03-04 09:55:04,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-03-04 09:55:04,217 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-03-04 09:55:04,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-03-04 09:55:04,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 09:55:04,225 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-03-04 09:55:04,226 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2025-03-04 09:55:04,230 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-03-04 09:55:04,231 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-03-04 09:55:04,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:04,231 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:04,231 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:04,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 09:55:04,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:04,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:04,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1029471599, now seen corresponding path program 1 times [2025-03-04 09:55:04,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:04,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387124283] [2025-03-04 09:55:04,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:04,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:04,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 09:55:04,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 09:55:04,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:04,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:04,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:04,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387124283] [2025-03-04 09:55:04,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387124283] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:04,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:04,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:55:04,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618514301] [2025-03-04 09:55:04,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:04,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:55:04,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:04,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:55:04,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:55:04,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:04,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:04,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:04,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:04,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:05,524 INFO L124 PetriNetUnfolderBase]: 9932/14710 cut-off events. [2025-03-04 09:55:05,524 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 09:55:05,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29085 conditions, 14710 events. 9932/14710 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 90492 event pairs, 2669 based on Foata normal form. 0/14353 useless extension candidates. Maximal degree in co-relation 29079. Up to 6007 conditions per place. [2025-03-04 09:55:05,594 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 47 selfloop transitions, 5 changer transitions 93/150 dead transitions. [2025-03-04 09:55:05,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 150 transitions, 602 flow [2025-03-04 09:55:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:55:05,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:55:05,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 228 transitions. [2025-03-04 09:55:05,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5891472868217055 [2025-03-04 09:55:05,596 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 228 transitions. [2025-03-04 09:55:05,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 150 transitions, 602 flow [2025-03-04 09:55:05,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 150 transitions, 601 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 09:55:05,601 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 126 flow [2025-03-04 09:55:05,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=126, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2025-03-04 09:55:05,602 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-03-04 09:55:05,602 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 126 flow [2025-03-04 09:55:05,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:05,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:05,602 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:05,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 09:55:05,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:05,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -320120528, now seen corresponding path program 1 times [2025-03-04 09:55:05,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:05,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124285037] [2025-03-04 09:55:05,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:05,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:05,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:55:05,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:55:05,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:05,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:05,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:05,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124285037] [2025-03-04 09:55:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124285037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:05,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134668141] [2025-03-04 09:55:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:05,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:05,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:05,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:05,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:05,762 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:05,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:05,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:05,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:05,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:06,531 INFO L124 PetriNetUnfolderBase]: 7600/11408 cut-off events. [2025-03-04 09:55:06,532 INFO L125 PetriNetUnfolderBase]: For 8290/8290 co-relation queries the response was YES. [2025-03-04 09:55:06,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28828 conditions, 11408 events. 7600/11408 cut-off events. For 8290/8290 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 67175 event pairs, 780 based on Foata normal form. 310/11705 useless extension candidates. Maximal degree in co-relation 28815. Up to 4973 conditions per place. [2025-03-04 09:55:06,582 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 58 selfloop transitions, 6 changer transitions 80/149 dead transitions. [2025-03-04 09:55:06,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 149 transitions, 778 flow [2025-03-04 09:55:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:55:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:55:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 234 transitions. [2025-03-04 09:55:06,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5441860465116279 [2025-03-04 09:55:06,584 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 126 flow. Second operand 10 states and 234 transitions. [2025-03-04 09:55:06,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 149 transitions, 778 flow [2025-03-04 09:55:06,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 149 transitions, 727 flow, removed 19 selfloop flow, removed 4 redundant places. [2025-03-04 09:55:06,707 INFO L231 Difference]: Finished difference. Result has 62 places, 38 transitions, 165 flow [2025-03-04 09:55:06,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=165, PETRI_PLACES=62, PETRI_TRANSITIONS=38} [2025-03-04 09:55:06,708 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 15 predicate places. [2025-03-04 09:55:06,708 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 38 transitions, 165 flow [2025-03-04 09:55:06,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:06,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:06,709 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:06,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 09:55:06,709 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:06,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:06,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2083538864, now seen corresponding path program 1 times [2025-03-04 09:55:06,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:06,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272899869] [2025-03-04 09:55:06,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:06,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:06,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 09:55:06,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 09:55:06,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:06,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:06,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272899869] [2025-03-04 09:55:06,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272899869] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:06,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:06,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:06,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351483271] [2025-03-04 09:55:06,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:06,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:06,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:06,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:06,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:06,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 38 transitions, 165 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:06,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:06,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:06,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:07,907 INFO L124 PetriNetUnfolderBase]: 8180/12036 cut-off events. [2025-03-04 09:55:07,907 INFO L125 PetriNetUnfolderBase]: For 20907/20907 co-relation queries the response was YES. [2025-03-04 09:55:07,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33864 conditions, 12036 events. 8180/12036 cut-off events. For 20907/20907 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 70181 event pairs, 632 based on Foata normal form. 355/12389 useless extension candidates. Maximal degree in co-relation 33845. Up to 3897 conditions per place. [2025-03-04 09:55:07,994 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 78 selfloop transitions, 14 changer transitions 104/201 dead transitions. [2025-03-04 09:55:07,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 201 transitions, 1176 flow [2025-03-04 09:55:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 09:55:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-03-04 09:55:07,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 306 transitions. [2025-03-04 09:55:07,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5474060822898033 [2025-03-04 09:55:07,996 INFO L175 Difference]: Start difference. First operand has 62 places, 38 transitions, 165 flow. Second operand 13 states and 306 transitions. [2025-03-04 09:55:07,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 201 transitions, 1176 flow [2025-03-04 09:55:08,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 201 transitions, 1075 flow, removed 36 selfloop flow, removed 6 redundant places. [2025-03-04 09:55:08,065 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 305 flow [2025-03-04 09:55:08,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=305, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2025-03-04 09:55:08,065 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-04 09:55:08,065 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 305 flow [2025-03-04 09:55:08,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:08,066 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:08,066 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:08,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 09:55:08,066 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:08,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:08,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1590229647, now seen corresponding path program 1 times [2025-03-04 09:55:08,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:08,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224959297] [2025-03-04 09:55:08,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:08,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:08,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:55:08,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:55:08,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:08,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:08,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:08,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224959297] [2025-03-04 09:55:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224959297] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:08,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:08,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:08,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34686190] [2025-03-04 09:55:08,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:08,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:08,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:08,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:08,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:08,194 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:08,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:08,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:08,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:08,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:08,980 INFO L124 PetriNetUnfolderBase]: 7480/11177 cut-off events. [2025-03-04 09:55:08,980 INFO L125 PetriNetUnfolderBase]: For 40681/40681 co-relation queries the response was YES. [2025-03-04 09:55:09,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36907 conditions, 11177 events. 7480/11177 cut-off events. For 40681/40681 co-relation queries the response was YES. Maximal size of possible extension queue 365. Compared 64318 event pairs, 927 based on Foata normal form. 270/11439 useless extension candidates. Maximal degree in co-relation 36880. Up to 5246 conditions per place. [2025-03-04 09:55:09,038 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 66 selfloop transitions, 10 changer transitions 72/153 dead transitions. [2025-03-04 09:55:09,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 153 transitions, 1036 flow [2025-03-04 09:55:09,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:55:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:55:09,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 223 transitions. [2025-03-04 09:55:09,040 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5186046511627908 [2025-03-04 09:55:09,040 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 305 flow. Second operand 10 states and 223 transitions. [2025-03-04 09:55:09,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 153 transitions, 1036 flow [2025-03-04 09:55:09,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 153 transitions, 944 flow, removed 46 selfloop flow, removed 8 redundant places. [2025-03-04 09:55:09,148 INFO L231 Difference]: Finished difference. Result has 76 places, 49 transitions, 363 flow [2025-03-04 09:55:09,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=363, PETRI_PLACES=76, PETRI_TRANSITIONS=49} [2025-03-04 09:55:09,149 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 29 predicate places. [2025-03-04 09:55:09,149 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 49 transitions, 363 flow [2025-03-04 09:55:09,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:09,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:09,149 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:09,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 09:55:09,149 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:09,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:09,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1502907953, now seen corresponding path program 1 times [2025-03-04 09:55:09,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:09,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313716018] [2025-03-04 09:55:09,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:09,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:09,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 09:55:09,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 09:55:09,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:09,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:09,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:09,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313716018] [2025-03-04 09:55:09,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313716018] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:09,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:09,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:09,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45093553] [2025-03-04 09:55:09,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:09,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:09,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:09,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:09,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:09,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:09,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 49 transitions, 363 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:09,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:09,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:09,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:09,898 INFO L124 PetriNetUnfolderBase]: 7203/10772 cut-off events. [2025-03-04 09:55:09,899 INFO L125 PetriNetUnfolderBase]: For 33908/33908 co-relation queries the response was YES. [2025-03-04 09:55:09,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34695 conditions, 10772 events. 7203/10772 cut-off events. For 33908/33908 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 61624 event pairs, 1632 based on Foata normal form. 250/11019 useless extension candidates. Maximal degree in co-relation 34665. Up to 5419 conditions per place. [2025-03-04 09:55:09,948 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 63 selfloop transitions, 17 changer transitions 72/157 dead transitions. [2025-03-04 09:55:09,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 157 transitions, 1235 flow [2025-03-04 09:55:09,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 09:55:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 09:55:09,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 220 transitions. [2025-03-04 09:55:09,949 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2025-03-04 09:55:09,950 INFO L175 Difference]: Start difference. First operand has 76 places, 49 transitions, 363 flow. Second operand 10 states and 220 transitions. [2025-03-04 09:55:09,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 157 transitions, 1235 flow [2025-03-04 09:55:10,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 157 transitions, 1167 flow, removed 31 selfloop flow, removed 7 redundant places. [2025-03-04 09:55:10,048 INFO L231 Difference]: Finished difference. Result has 79 places, 53 transitions, 449 flow [2025-03-04 09:55:10,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=449, PETRI_PLACES=79, PETRI_TRANSITIONS=53} [2025-03-04 09:55:10,049 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2025-03-04 09:55:10,049 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 53 transitions, 449 flow [2025-03-04 09:55:10,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:10,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:10,049 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:10,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 09:55:10,049 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:10,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:10,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1522373765, now seen corresponding path program 1 times [2025-03-04 09:55:10,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:10,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275321799] [2025-03-04 09:55:10,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:10,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:10,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 09:55:10,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 09:55:10,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:10,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:10,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:10,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275321799] [2025-03-04 09:55:10,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275321799] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:10,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:10,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 09:55:10,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680860238] [2025-03-04 09:55:10,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:10,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 09:55:10,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:10,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 09:55:10,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-04 09:55:10,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:10,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 53 transitions, 449 flow. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2025-03-04 09:55:10,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:10,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:10,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:11,002 INFO L124 PetriNetUnfolderBase]: 8864/13145 cut-off events. [2025-03-04 09:55:11,003 INFO L125 PetriNetUnfolderBase]: For 38761/38761 co-relation queries the response was YES. [2025-03-04 09:55:11,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40541 conditions, 13145 events. 8864/13145 cut-off events. For 38761/38761 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 76643 event pairs, 1521 based on Foata normal form. 245/13377 useless extension candidates. Maximal degree in co-relation 40509. Up to 4472 conditions per place. [2025-03-04 09:55:11,059 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 65 selfloop transitions, 6 changer transitions 77/153 dead transitions. [2025-03-04 09:55:11,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 153 transitions, 1239 flow [2025-03-04 09:55:11,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 09:55:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 09:55:11,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 208 transitions. [2025-03-04 09:55:11,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.537467700258398 [2025-03-04 09:55:11,061 INFO L175 Difference]: Start difference. First operand has 79 places, 53 transitions, 449 flow. Second operand 9 states and 208 transitions. [2025-03-04 09:55:11,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 153 transitions, 1239 flow [2025-03-04 09:55:11,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 153 transitions, 1151 flow, removed 34 selfloop flow, removed 9 redundant places. [2025-03-04 09:55:11,163 INFO L231 Difference]: Finished difference. Result has 78 places, 37 transitions, 237 flow [2025-03-04 09:55:11,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=237, PETRI_PLACES=78, PETRI_TRANSITIONS=37} [2025-03-04 09:55:11,164 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 31 predicate places. [2025-03-04 09:55:11,164 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 37 transitions, 237 flow [2025-03-04 09:55:11,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 7 states have internal predecessors, (79), 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) [2025-03-04 09:55:11,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:11,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:11,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 09:55:11,164 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:11,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:11,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1354752986, now seen corresponding path program 1 times [2025-03-04 09:55:11,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:11,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107625889] [2025-03-04 09:55:11,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:11,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:11,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 09:55:11,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 09:55:11,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:11,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:11,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:11,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107625889] [2025-03-04 09:55:11,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107625889] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:11,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:11,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:11,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725078222] [2025-03-04 09:55:11,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:11,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:11,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:11,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:11,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:11,275 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-03-04 09:55:11,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 37 transitions, 237 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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) [2025-03-04 09:55:11,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:11,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-03-04 09:55:11,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:11,770 INFO L124 PetriNetUnfolderBase]: 5028/7600 cut-off events. [2025-03-04 09:55:11,771 INFO L125 PetriNetUnfolderBase]: For 20666/20666 co-relation queries the response was YES. [2025-03-04 09:55:11,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22184 conditions, 7600 events. 5028/7600 cut-off events. For 20666/20666 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 42558 event pairs, 1170 based on Foata normal form. 180/7778 useless extension candidates. Maximal degree in co-relation 22152. Up to 2916 conditions per place. [2025-03-04 09:55:11,807 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 42 selfloop transitions, 3 changer transitions 63/113 dead transitions. [2025-03-04 09:55:11,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 113 transitions, 796 flow [2025-03-04 09:55:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 09:55:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 09:55:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 178 transitions. [2025-03-04 09:55:11,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5174418604651163 [2025-03-04 09:55:11,809 INFO L175 Difference]: Start difference. First operand has 78 places, 37 transitions, 237 flow. Second operand 8 states and 178 transitions. [2025-03-04 09:55:11,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 113 transitions, 796 flow [2025-03-04 09:55:11,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 554 flow, removed 40 selfloop flow, removed 23 redundant places. [2025-03-04 09:55:11,844 INFO L231 Difference]: Finished difference. Result has 64 places, 33 transitions, 126 flow [2025-03-04 09:55:11,845 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=64, PETRI_TRANSITIONS=33} [2025-03-04 09:55:11,845 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-03-04 09:55:11,845 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 33 transitions, 126 flow [2025-03-04 09:55:11,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 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) [2025-03-04 09:55:11,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:11,846 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] [2025-03-04 09:55:11,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 09:55:11,846 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:11,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:11,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1325907082, now seen corresponding path program 1 times [2025-03-04 09:55:11,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:11,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353770503] [2025-03-04 09:55:11,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:11,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 09:55:11,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 09:55:11,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:11,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:11,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:11,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353770503] [2025-03-04 09:55:11,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353770503] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:11,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:11,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 09:55:11,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318629305] [2025-03-04 09:55:11,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:11,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 09:55:11,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:11,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 09:55:11,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 09:55:11,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:55:11,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 33 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:11,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:11,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:55:11,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:12,083 INFO L124 PetriNetUnfolderBase]: 1503/2445 cut-off events. [2025-03-04 09:55:12,083 INFO L125 PetriNetUnfolderBase]: For 1572/1574 co-relation queries the response was YES. [2025-03-04 09:55:12,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5743 conditions, 2445 events. 1503/2445 cut-off events. For 1572/1574 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 12045 event pairs, 301 based on Foata normal form. 106/2551 useless extension candidates. Maximal degree in co-relation 5722. Up to 1315 conditions per place. [2025-03-04 09:55:12,091 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 45 selfloop transitions, 4 changer transitions 8/62 dead transitions. [2025-03-04 09:55:12,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 336 flow [2025-03-04 09:55:12,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 09:55:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 09:55:12,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2025-03-04 09:55:12,092 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5755813953488372 [2025-03-04 09:55:12,092 INFO L175 Difference]: Start difference. First operand has 64 places, 33 transitions, 126 flow. Second operand 4 states and 99 transitions. [2025-03-04 09:55:12,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 336 flow [2025-03-04 09:55:12,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 275 flow, removed 19 selfloop flow, removed 14 redundant places. [2025-03-04 09:55:12,096 INFO L231 Difference]: Finished difference. Result has 51 places, 35 transitions, 115 flow [2025-03-04 09:55:12,096 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=51, PETRI_TRANSITIONS=35} [2025-03-04 09:55:12,096 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 4 predicate places. [2025-03-04 09:55:12,096 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 35 transitions, 115 flow [2025-03-04 09:55:12,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 09:55:12,096 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:12,097 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] [2025-03-04 09:55:12,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 09:55:12,097 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:12,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:12,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1132557257, now seen corresponding path program 1 times [2025-03-04 09:55:12,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:12,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15803734] [2025-03-04 09:55:12,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:12,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:12,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 09:55:12,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 09:55:12,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:12,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:12,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:12,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15803734] [2025-03-04 09:55:12,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15803734] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:12,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:12,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 09:55:12,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38540076] [2025-03-04 09:55:12,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:12,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 09:55:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:12,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 09:55:12,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 09:55:12,178 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:55:12,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 35 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2025-03-04 09:55:12,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:12,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:55:12,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:12,311 INFO L124 PetriNetUnfolderBase]: 867/1431 cut-off events. [2025-03-04 09:55:12,311 INFO L125 PetriNetUnfolderBase]: For 520/522 co-relation queries the response was YES. [2025-03-04 09:55:12,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3548 conditions, 1431 events. 867/1431 cut-off events. For 520/522 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 6201 event pairs, 143 based on Foata normal form. 76/1507 useless extension candidates. Maximal degree in co-relation 3537. Up to 501 conditions per place. [2025-03-04 09:55:12,316 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 43 selfloop transitions, 6 changer transitions 18/72 dead transitions. [2025-03-04 09:55:12,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 358 flow [2025-03-04 09:55:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 09:55:12,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 09:55:12,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 119 transitions. [2025-03-04 09:55:12,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5534883720930233 [2025-03-04 09:55:12,317 INFO L175 Difference]: Start difference. First operand has 51 places, 35 transitions, 115 flow. Second operand 5 states and 119 transitions. [2025-03-04 09:55:12,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 358 flow [2025-03-04 09:55:12,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 72 transitions, 349 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 09:55:12,319 INFO L231 Difference]: Finished difference. Result has 55 places, 35 transitions, 133 flow [2025-03-04 09:55:12,319 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=133, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2025-03-04 09:55:12,320 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2025-03-04 09:55:12,320 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 133 flow [2025-03-04 09:55:12,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2025-03-04 09:55:12,320 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 09:55:12,320 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:12,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 09:55:12,320 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-03-04 09:55:12,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 09:55:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash 520312166, now seen corresponding path program 1 times [2025-03-04 09:55:12,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 09:55:12,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124883486] [2025-03-04 09:55:12,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 09:55:12,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 09:55:12,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 09:55:12,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 09:55:12,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 09:55:12,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 09:55:12,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 09:55:12,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 09:55:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124883486] [2025-03-04 09:55:12,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124883486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 09:55:12,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 09:55:12,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 09:55:12,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419309706] [2025-03-04 09:55:12,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 09:55:12,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 09:55:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 09:55:12,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 09:55:12,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 09:55:12,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-03-04 09:55:12,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 133 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-04 09:55:12,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 09:55:12,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-03-04 09:55:12,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 09:55:12,515 INFO L124 PetriNetUnfolderBase]: 433/717 cut-off events. [2025-03-04 09:55:12,515 INFO L125 PetriNetUnfolderBase]: For 612/614 co-relation queries the response was YES. [2025-03-04 09:55:12,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 717 events. 433/717 cut-off events. For 612/614 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2683 event pairs, 89 based on Foata normal form. 24/741 useless extension candidates. Maximal degree in co-relation 1957. Up to 268 conditions per place. [2025-03-04 09:55:12,517 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2025-03-04 09:55:12,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 57 transitions, 301 flow [2025-03-04 09:55:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 09:55:12,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 09:55:12,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2025-03-04 09:55:12,518 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4496124031007752 [2025-03-04 09:55:12,518 INFO L175 Difference]: Start difference. First operand has 55 places, 35 transitions, 133 flow. Second operand 6 states and 116 transitions. [2025-03-04 09:55:12,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 57 transitions, 301 flow [2025-03-04 09:55:12,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 57 transitions, 272 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-03-04 09:55:12,519 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2025-03-04 09:55:12,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2025-03-04 09:55:12,520 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 2 predicate places. [2025-03-04 09:55:12,520 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2025-03-04 09:55:12,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2025-03-04 09:55:12,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-03-04 09:55:12,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-03-04 09:55:12,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-03-04 09:55:12,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-03-04 09:55:12,525 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-03-04 09:55:12,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 09:55:12,525 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 09:55:12,527 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 09:55:12,527 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 09:55:12,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 09:55:12 BasicIcfg [2025-03-04 09:55:12,533 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 09:55:12,533 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 09:55:12,533 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 09:55:12,533 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 09:55:12,534 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 09:55:03" (3/4) ... [2025-03-04 09:55:12,536 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 09:55:12,538 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 09:55:12,538 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 09:55:12,538 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 09:55:12,542 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-04 09:55:12,542 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-04 09:55:12,542 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-04 09:55:12,542 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-04 09:55:12,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 09:55:12,600 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 09:55:12,600 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 09:55:12,601 INFO L158 Benchmark]: Toolchain (without parser) took 10162.63ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 110.5MB in the beginning and 1.0GB in the end (delta: -913.6MB). Peak memory consumption was 361.9MB. Max. memory is 16.1GB. [2025-03-04 09:55:12,601 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:55:12,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.33ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.5MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:55:12,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.14ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 88.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:55:12,602 INFO L158 Benchmark]: Boogie Preprocessor took 30.47ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 09:55:12,602 INFO L158 Benchmark]: IcfgBuilder took 306.54ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 67.2MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 09:55:12,602 INFO L158 Benchmark]: TraceAbstraction took 9367.05ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 66.7MB in the beginning and 1.0GB in the end (delta: -961.7MB). Peak memory consumption was 311.6MB. Max. memory is 16.1GB. [2025-03-04 09:55:12,602 INFO L158 Benchmark]: Witness Printer took 67.24ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 09:55:12,603 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.33ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 90.5MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.14ms. Allocated memory is still 142.6MB. Free memory was 90.5MB in the beginning and 88.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.47ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 306.54ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 67.2MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9367.05ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 66.7MB in the beginning and 1.0GB in the end (delta: -961.7MB). Peak memory consumption was 311.6MB. Max. memory is 16.1GB. * Witness Printer took 67.24ms. Allocated memory is still 1.4GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 9.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 902 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 899 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2054 IncrementalHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 3 mSDtfsCounter, 2054 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=6, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 770 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-04 09:55:12,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE