./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:22:45,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:22:45,468 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:22:45,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:22:45,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:22:45,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:22:45,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:22:45,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:22:45,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:22:45,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:22:45,512 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:22:45,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:22:45,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:22:45,513 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:22:45,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:22:45,513 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2025-02-08 08:22:45,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:22:45,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:22:45,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:22:45,894 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:22:45,895 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:22:45,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2025-02-08 08:22:47,073 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/420d72511/4df1476df6ce4f9fbbb54dc33c892009/FLAG7b02e679a [2025-02-08 08:22:47,447 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:22:47,448 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2025-02-08 08:22:47,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/420d72511/4df1476df6ce4f9fbbb54dc33c892009/FLAG7b02e679a [2025-02-08 08:22:47,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/420d72511/4df1476df6ce4f9fbbb54dc33c892009 [2025-02-08 08:22:47,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:22:47,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:22:47,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:22:47,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:22:47,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:22:47,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378fba94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47, skipping insertion in model container [2025-02-08 08:22:47,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:22:47,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:22:47,702 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:22:47,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:22:47,766 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:22:47,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47 WrapperNode [2025-02-08 08:22:47,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:22:47,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:22:47,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:22:47,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:22:47,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,791 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2025-02-08 08:22:47,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:22:47,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:22:47,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:22:47,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:22:47,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,807 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-08 08:22:47,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,810 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:22:47,814 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:22:47,814 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:22:47,814 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:22:47,814 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (1/1) ... [2025-02-08 08:22:47,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:22:47,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:22:47,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:22:47,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:22:47,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:22:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:22:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:22:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:22:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:22:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:22:47,858 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:22:47,930 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:22:47,932 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:22:48,033 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:22:48,034 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:22:48,089 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:22:48,089 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:22:48,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:22:48 BoogieIcfgContainer [2025-02-08 08:22:48,089 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:22:48,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:22:48,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:22:48,094 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:22:48,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:22:47" (1/3) ... [2025-02-08 08:22:48,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c782998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:22:48, skipping insertion in model container [2025-02-08 08:22:48,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:22:47" (2/3) ... [2025-02-08 08:22:48,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c782998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:22:48, skipping insertion in model container [2025-02-08 08:22:48,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:22:48" (3/3) ... [2025-02-08 08:22:48,098 INFO L128 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2025-02-08 08:22:48,108 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:22:48,109 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe002_tso.i that has 4 procedures, 42 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:22:48,110 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:22:48,163 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:22:48,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2025-02-08 08:22:48,223 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2025-02-08 08:22:48,225 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:22:48,231 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. [2025-02-08 08:22:48,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2025-02-08 08:22:48,233 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2025-02-08 08:22:48,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:22:48,258 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;@29a460e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:22:48,260 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:22:48,275 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:22:48,276 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2025-02-08 08:22:48,276 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:22:48,276 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:48,276 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:48,277 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)] === [2025-02-08 08:22:48,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:48,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1734780392, now seen corresponding path program 1 times [2025-02-08 08:22:48,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:48,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981038491] [2025-02-08 08:22:48,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:48,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:48,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:22:48,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:22:48,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:48,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:48,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:48,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:48,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981038491] [2025-02-08 08:22:48,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981038491] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:48,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:48,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:22:48,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706518810] [2025-02-08 08:22:48,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:48,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:22:48,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:48,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:22:48,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:22:48,489 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:48,490 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) [2025-02-08 08:22:48,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:48,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:48,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:49,195 INFO L124 PetriNetUnfolderBase]: 4775/7427 cut-off events. [2025-02-08 08:22:49,196 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-02-08 08:22:49,214 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 43889 event pairs, 4775 based on Foata normal form. 648/8024 useless extension candidates. Maximal degree in co-relation 14311. Up to 6804 conditions per place. [2025-02-08 08:22:49,264 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 27 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2025-02-08 08:22:49,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 137 flow [2025-02-08 08:22:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:22:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:22:49,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2025-02-08 08:22:49,279 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4573643410852713 [2025-02-08 08:22:49,281 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 59 transitions. [2025-02-08 08:22:49,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 137 flow [2025-02-08 08:22:49,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 134 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:22:49,288 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2025-02-08 08:22:49,290 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} [2025-02-08 08:22:49,293 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2025-02-08 08:22:49,295 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2025-02-08 08:22:49,295 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) [2025-02-08 08:22:49,295 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:49,295 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:49,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:22:49,296 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)] === [2025-02-08 08:22:49,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1734778999, now seen corresponding path program 1 times [2025-02-08 08:22:49,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:49,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127179866] [2025-02-08 08:22:49,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:49,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:49,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:22:49,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:22:49,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:49,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:49,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:49,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:49,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127179866] [2025-02-08 08:22:49,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127179866] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:49,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:49,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:22:49,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908751465] [2025-02-08 08:22:49,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:49,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:22:49,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:49,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:22:49,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:22:49,598 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:49,599 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) [2025-02-08 08:22:49,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:49,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:49,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:50,764 INFO L124 PetriNetUnfolderBase]: 10073/14911 cut-off events. [2025-02-08 08:22:50,768 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:22:50,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29535 conditions, 14911 events. 10073/14911 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 91391 event pairs, 2229 based on Foata normal form. 0/14553 useless extension candidates. Maximal degree in co-relation 29529. Up to 5819 conditions per place. [2025-02-08 08:22:50,893 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 47 selfloop transitions, 6 changer transitions 97/155 dead transitions. [2025-02-08 08:22:50,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 155 transitions, 622 flow [2025-02-08 08:22:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 08:22:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 08:22:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 233 transitions. [2025-02-08 08:22:50,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6020671834625323 [2025-02-08 08:22:50,897 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 233 transitions. [2025-02-08 08:22:50,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 155 transitions, 622 flow [2025-02-08 08:22:50,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 155 transitions, 621 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:22:50,904 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2025-02-08 08:22:50,904 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2025-02-08 08:22:50,905 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2025-02-08 08:22:50,905 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2025-02-08 08:22:50,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:22:50,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:50,906 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:50,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:22:50,906 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)] === [2025-02-08 08:22:50,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash -659673624, now seen corresponding path program 1 times [2025-02-08 08:22:50,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:50,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999739396] [2025-02-08 08:22:50,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:50,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:50,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:22:50,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:22:50,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:50,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:51,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:51,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999739396] [2025-02-08 08:22:51,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999739396] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:51,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:51,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:22:51,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798864186] [2025-02-08 08:22:51,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:51,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:51,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:51,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:51,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:51,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:51,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 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) [2025-02-08 08:22:51,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:51,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:51,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:52,087 INFO L124 PetriNetUnfolderBase]: 7550/11368 cut-off events. [2025-02-08 08:22:52,087 INFO L125 PetriNetUnfolderBase]: For 13943/13955 co-relation queries the response was YES. [2025-02-08 08:22:52,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31224 conditions, 11368 events. 7550/11368 cut-off events. For 13943/13955 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 68447 event pairs, 725 based on Foata normal form. 302/11659 useless extension candidates. Maximal degree in co-relation 31209. Up to 5293 conditions per place. [2025-02-08 08:22:52,144 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 58 selfloop transitions, 10 changer transitions 78/151 dead transitions. [2025-02-08 08:22:52,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 151 transitions, 905 flow [2025-02-08 08:22:52,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:22:52,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:22:52,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 229 transitions. [2025-02-08 08:22:52,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5325581395348837 [2025-02-08 08:22:52,146 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 229 transitions. [2025-02-08 08:22:52,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 151 transitions, 905 flow [2025-02-08 08:22:52,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 151 transitions, 811 flow, removed 20 selfloop flow, removed 4 redundant places. [2025-02-08 08:22:52,184 INFO L231 Difference]: Finished difference. Result has 65 places, 44 transitions, 237 flow [2025-02-08 08:22:52,184 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=237, PETRI_PLACES=65, PETRI_TRANSITIONS=44} [2025-02-08 08:22:52,184 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-02-08 08:22:52,185 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 44 transitions, 237 flow [2025-02-08 08:22:52,185 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) [2025-02-08 08:22:52,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:52,185 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:52,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:22:52,185 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)] === [2025-02-08 08:22:52,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:52,186 INFO L85 PathProgramCache]: Analyzing trace with hash 32900842, now seen corresponding path program 1 times [2025-02-08 08:22:52,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:52,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407963307] [2025-02-08 08:22:52,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:52,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:52,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 08:22:52,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 08:22:52,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:52,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:52,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:52,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407963307] [2025-02-08 08:22:52,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407963307] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:52,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:52,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:22:52,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649222867] [2025-02-08 08:22:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:52,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:52,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:52,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:52,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:52,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:52,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 44 transitions, 237 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) [2025-02-08 08:22:52,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:52,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:52,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:53,443 INFO L124 PetriNetUnfolderBase]: 6998/10517 cut-off events. [2025-02-08 08:22:53,443 INFO L125 PetriNetUnfolderBase]: For 23813/23822 co-relation queries the response was YES. [2025-02-08 08:22:53,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31823 conditions, 10517 events. 6998/10517 cut-off events. For 23813/23822 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 61699 event pairs, 1525 based on Foata normal form. 240/10754 useless extension candidates. Maximal degree in co-relation 31801. Up to 5013 conditions per place. [2025-02-08 08:22:53,484 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 65 selfloop transitions, 12 changer transitions 68/150 dead transitions. [2025-02-08 08:22:53,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 150 transitions, 905 flow [2025-02-08 08:22:53,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:22:53,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:22:53,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 227 transitions. [2025-02-08 08:22:53,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5279069767441861 [2025-02-08 08:22:53,488 INFO L175 Difference]: Start difference. First operand has 65 places, 44 transitions, 237 flow. Second operand 10 states and 227 transitions. [2025-02-08 08:22:53,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 150 transitions, 905 flow [2025-02-08 08:22:53,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 150 transitions, 839 flow, removed 33 selfloop flow, removed 2 redundant places. [2025-02-08 08:22:53,577 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 311 flow [2025-02-08 08:22:53,577 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=311, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2025-02-08 08:22:53,578 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2025-02-08 08:22:53,578 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 311 flow [2025-02-08 08:22:53,578 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) [2025-02-08 08:22:53,578 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:53,578 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:53,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:22:53,578 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)] === [2025-02-08 08:22:53,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:53,579 INFO L85 PathProgramCache]: Analyzing trace with hash -762720537, now seen corresponding path program 1 times [2025-02-08 08:22:53,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:53,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343451766] [2025-02-08 08:22:53,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:53,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:53,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:22:53,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:22:53,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:53,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:53,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:53,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343451766] [2025-02-08 08:22:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343451766] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:22:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352274830] [2025-02-08 08:22:53,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:53,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:53,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:53,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:53,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:53,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:53,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2025-02-08 08:22:53,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:53,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:53,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:54,674 INFO L124 PetriNetUnfolderBase]: 9955/14989 cut-off events. [2025-02-08 08:22:54,675 INFO L125 PetriNetUnfolderBase]: For 33516/33525 co-relation queries the response was YES. [2025-02-08 08:22:54,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45223 conditions, 14989 events. 9955/14989 cut-off events. For 33516/33525 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 92414 event pairs, 2772 based on Foata normal form. 248/15226 useless extension candidates. Maximal degree in co-relation 45192. Up to 7055 conditions per place. [2025-02-08 08:22:54,741 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 52 selfloop transitions, 5 changer transitions 53/115 dead transitions. [2025-02-08 08:22:54,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 115 transitions, 859 flow [2025-02-08 08:22:54,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:22:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:22:54,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2025-02-08 08:22:54,743 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5736434108527132 [2025-02-08 08:22:54,744 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 311 flow. Second operand 6 states and 148 transitions. [2025-02-08 08:22:54,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 115 transitions, 859 flow [2025-02-08 08:22:54,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 115 transitions, 815 flow, removed 20 selfloop flow, removed 11 redundant places. [2025-02-08 08:22:54,881 INFO L231 Difference]: Finished difference. Result has 66 places, 41 transitions, 232 flow [2025-02-08 08:22:54,881 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=232, PETRI_PLACES=66, PETRI_TRANSITIONS=41} [2025-02-08 08:22:54,882 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 19 predicate places. [2025-02-08 08:22:54,882 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 41 transitions, 232 flow [2025-02-08 08:22:54,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2025-02-08 08:22:54,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:54,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:54,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:22:54,883 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)] === [2025-02-08 08:22:54,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:54,883 INFO L85 PathProgramCache]: Analyzing trace with hash 587714319, now seen corresponding path program 1 times [2025-02-08 08:22:54,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:54,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174597123] [2025-02-08 08:22:54,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:54,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:54,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:22:54,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:22:54,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:54,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:54,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174597123] [2025-02-08 08:22:54,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174597123] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:54,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:54,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:22:54,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125909187] [2025-02-08 08:22:54,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:54,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:54,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:54,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:54,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:54,983 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:54,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 41 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2025-02-08 08:22:54,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:54,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:54,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:55,844 INFO L124 PetriNetUnfolderBase]: 7024/10515 cut-off events. [2025-02-08 08:22:55,846 INFO L125 PetriNetUnfolderBase]: For 16058/16061 co-relation queries the response was YES. [2025-02-08 08:22:55,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29885 conditions, 10515 events. 7024/10515 cut-off events. For 16058/16061 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 61319 event pairs, 1582 based on Foata normal form. 220/10733 useless extension candidates. Maximal degree in co-relation 29860. Up to 5259 conditions per place. [2025-02-08 08:22:55,890 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 52 selfloop transitions, 7 changer transitions 52/116 dead transitions. [2025-02-08 08:22:55,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 116 transitions, 738 flow [2025-02-08 08:22:55,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:22:55,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:22:55,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2025-02-08 08:22:55,894 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2025-02-08 08:22:55,894 INFO L175 Difference]: Start difference. First operand has 66 places, 41 transitions, 232 flow. Second operand 8 states and 176 transitions. [2025-02-08 08:22:55,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 116 transitions, 738 flow [2025-02-08 08:22:55,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 116 transitions, 649 flow, removed 16 selfloop flow, removed 11 redundant places. [2025-02-08 08:22:55,939 INFO L231 Difference]: Finished difference. Result has 65 places, 40 transitions, 199 flow [2025-02-08 08:22:55,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=199, PETRI_PLACES=65, PETRI_TRANSITIONS=40} [2025-02-08 08:22:55,939 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2025-02-08 08:22:55,940 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 40 transitions, 199 flow [2025-02-08 08:22:55,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2025-02-08 08:22:55,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:55,940 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:55,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:22:55,940 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)] === [2025-02-08 08:22:55,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:55,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1568571657, now seen corresponding path program 2 times [2025-02-08 08:22:55,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:55,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802026490] [2025-02-08 08:22:55,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:22:55,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:55,948 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-02-08 08:22:55,952 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 08:22:55,952 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:22:55,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:56,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:56,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802026490] [2025-02-08 08:22:56,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802026490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:56,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:56,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:22:56,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408375262] [2025-02-08 08:22:56,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:56,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:56,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:56,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:56,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:56,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:56,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 40 transitions, 199 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2025-02-08 08:22:56,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:56,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:56,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:56,551 INFO L124 PetriNetUnfolderBase]: 6942/10329 cut-off events. [2025-02-08 08:22:56,551 INFO L125 PetriNetUnfolderBase]: For 11856/11859 co-relation queries the response was YES. [2025-02-08 08:22:56,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27601 conditions, 10329 events. 6942/10329 cut-off events. For 11856/11859 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 58860 event pairs, 2277 based on Foata normal form. 264/10591 useless extension candidates. Maximal degree in co-relation 27580. Up to 5350 conditions per place. [2025-02-08 08:22:56,581 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 47 selfloop transitions, 4 changer transitions 39/95 dead transitions. [2025-02-08 08:22:56,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 95 transitions, 594 flow [2025-02-08 08:22:56,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:22:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:22:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 135 transitions. [2025-02-08 08:22:56,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5232558139534884 [2025-02-08 08:22:56,582 INFO L175 Difference]: Start difference. First operand has 65 places, 40 transitions, 199 flow. Second operand 6 states and 135 transitions. [2025-02-08 08:22:56,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 95 transitions, 594 flow [2025-02-08 08:22:56,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 95 transitions, 565 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 08:22:56,608 INFO L231 Difference]: Finished difference. Result has 63 places, 38 transitions, 180 flow [2025-02-08 08:22:56,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=63, PETRI_TRANSITIONS=38} [2025-02-08 08:22:56,608 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-08 08:22:56,609 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 38 transitions, 180 flow [2025-02-08 08:22:56,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 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) [2025-02-08 08:22:56,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:56,609 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] [2025-02-08 08:22:56,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:22:56,609 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)] === [2025-02-08 08:22:56,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:56,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1473393060, now seen corresponding path program 1 times [2025-02-08 08:22:56,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:56,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925608398] [2025-02-08 08:22:56,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:56,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:56,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:22:56,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:22:56,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:56,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:56,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:56,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:56,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925608398] [2025-02-08 08:22:56,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925608398] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:56,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:56,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:22:56,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721384264] [2025-02-08 08:22:56,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:56,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:22:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:56,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:22:56,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:22:56,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:56,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 38 transitions, 180 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:22:56,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:56,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:56,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:57,026 INFO L124 PetriNetUnfolderBase]: 3680/5529 cut-off events. [2025-02-08 08:22:57,026 INFO L125 PetriNetUnfolderBase]: For 5168/5171 co-relation queries the response was YES. [2025-02-08 08:22:57,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15071 conditions, 5529 events. 3680/5529 cut-off events. For 5168/5171 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 27422 event pairs, 753 based on Foata normal form. 81/5610 useless extension candidates. Maximal degree in co-relation 15051. Up to 2317 conditions per place. [2025-02-08 08:22:57,043 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 38 selfloop transitions, 3 changer transitions 54/100 dead transitions. [2025-02-08 08:22:57,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 100 transitions, 534 flow [2025-02-08 08:22:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:22:57,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:22:57,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2025-02-08 08:22:57,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48255813953488375 [2025-02-08 08:22:57,045 INFO L175 Difference]: Start difference. First operand has 63 places, 38 transitions, 180 flow. Second operand 8 states and 166 transitions. [2025-02-08 08:22:57,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 100 transitions, 534 flow [2025-02-08 08:22:57,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 100 transitions, 504 flow, removed 6 selfloop flow, removed 8 redundant places. [2025-02-08 08:22:57,055 INFO L231 Difference]: Finished difference. Result has 63 places, 33 transitions, 123 flow [2025-02-08 08:22:57,056 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=123, PETRI_PLACES=63, PETRI_TRANSITIONS=33} [2025-02-08 08:22:57,056 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2025-02-08 08:22:57,056 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 33 transitions, 123 flow [2025-02-08 08:22:57,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:22:57,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:57,056 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] [2025-02-08 08:22:57,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:22:57,057 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)] === [2025-02-08 08:22:57,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:57,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1029398204, now seen corresponding path program 2 times [2025-02-08 08:22:57,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:57,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280359245] [2025-02-08 08:22:57,057 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:22:57,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:57,073 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:22:57,085 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:22:57,091 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:22:57,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:57,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:57,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280359245] [2025-02-08 08:22:57,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280359245] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:57,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:57,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:22:57,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345490888] [2025-02-08 08:22:57,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:57,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:22:57,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:57,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:22:57,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:22:57,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:22:57,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 33 transitions, 123 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) [2025-02-08 08:22:57,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:57,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:22:57,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:57,324 INFO L124 PetriNetUnfolderBase]: 1531/2460 cut-off events. [2025-02-08 08:22:57,324 INFO L125 PetriNetUnfolderBase]: For 1541/1543 co-relation queries the response was YES. [2025-02-08 08:22:57,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6078 conditions, 2460 events. 1531/2460 cut-off events. For 1541/1543 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 11970 event pairs, 177 based on Foata normal form. 106/2566 useless extension candidates. Maximal degree in co-relation 6060. Up to 1447 conditions per place. [2025-02-08 08:22:57,332 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 49 selfloop transitions, 5 changer transitions 1/60 dead transitions. [2025-02-08 08:22:57,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 60 transitions, 333 flow [2025-02-08 08:22:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:22:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:22:57,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2025-02-08 08:22:57,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2025-02-08 08:22:57,333 INFO L175 Difference]: Start difference. First operand has 63 places, 33 transitions, 123 flow. Second operand 4 states and 97 transitions. [2025-02-08 08:22:57,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 60 transitions, 333 flow [2025-02-08 08:22:57,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 287 flow, removed 10 selfloop flow, removed 11 redundant places. [2025-02-08 08:22:57,336 INFO L231 Difference]: Finished difference. Result has 52 places, 36 transitions, 131 flow [2025-02-08 08:22:57,336 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=52, PETRI_TRANSITIONS=36} [2025-02-08 08:22:57,337 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 5 predicate places. [2025-02-08 08:22:57,337 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 36 transitions, 131 flow [2025-02-08 08:22:57,337 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) [2025-02-08 08:22:57,337 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:57,337 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] [2025-02-08 08:22:57,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:22:57,337 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)] === [2025-02-08 08:22:57,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash 148844871, now seen corresponding path program 1 times [2025-02-08 08:22:57,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:57,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404427015] [2025-02-08 08:22:57,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:57,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:57,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:22:57,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:22:57,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:57,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:57,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:57,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404427015] [2025-02-08 08:22:57,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404427015] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:57,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:57,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:22:57,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220577627] [2025-02-08 08:22:57,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:57,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:22:57,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:57,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:22:57,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:22:57,410 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:22:57,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 36 transitions, 131 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) [2025-02-08 08:22:57,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:57,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:22:57,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:57,517 INFO L124 PetriNetUnfolderBase]: 959/1574 cut-off events. [2025-02-08 08:22:57,518 INFO L125 PetriNetUnfolderBase]: For 964/966 co-relation queries the response was YES. [2025-02-08 08:22:57,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 1574 events. 959/1574 cut-off events. For 964/966 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6838 event pairs, 91 based on Foata normal form. 84/1658 useless extension candidates. Maximal degree in co-relation 4108. Up to 661 conditions per place. [2025-02-08 08:22:57,521 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 56 selfloop transitions, 8 changer transitions 1/70 dead transitions. [2025-02-08 08:22:57,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 378 flow [2025-02-08 08:22:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:22:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:22:57,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2025-02-08 08:22:57,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5441860465116279 [2025-02-08 08:22:57,522 INFO L175 Difference]: Start difference. First operand has 52 places, 36 transitions, 131 flow. Second operand 5 states and 117 transitions. [2025-02-08 08:22:57,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 378 flow [2025-02-08 08:22:57,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 70 transitions, 368 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 08:22:57,524 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 171 flow [2025-02-08 08:22:57,524 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2025-02-08 08:22:57,525 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-02-08 08:22:57,525 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 171 flow [2025-02-08 08:22:57,525 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) [2025-02-08 08:22:57,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:57,525 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] [2025-02-08 08:22:57,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:22:57,525 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)] === [2025-02-08 08:22:57,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:57,526 INFO L85 PathProgramCache]: Analyzing trace with hash -2121053160, now seen corresponding path program 1 times [2025-02-08 08:22:57,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:57,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151292787] [2025-02-08 08:22:57,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:57,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:57,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 08:22:57,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 08:22:57,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:57,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:57,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:57,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:57,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151292787] [2025-02-08 08:22:57,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151292787] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:57,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:57,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:22:57,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257290297] [2025-02-08 08:22:57,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:57,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:57,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:57,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:57,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:57,592 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2025-02-08 08:22:57,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 171 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) [2025-02-08 08:22:57,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:57,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2025-02-08 08:22:57,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:57,689 INFO L124 PetriNetUnfolderBase]: 525/860 cut-off events. [2025-02-08 08:22:57,689 INFO L125 PetriNetUnfolderBase]: For 1012/1014 co-relation queries the response was YES. [2025-02-08 08:22:57,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2463 conditions, 860 events. 525/860 cut-off events. For 1012/1014 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3088 event pairs, 73 based on Foata normal form. 40/900 useless extension candidates. Maximal degree in co-relation 2448. Up to 284 conditions per place. [2025-02-08 08:22:57,691 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 49 selfloop transitions, 11 changer transitions 1/66 dead transitions. [2025-02-08 08:22:57,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 66 transitions, 375 flow [2025-02-08 08:22:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:22:57,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:22:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2025-02-08 08:22:57,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47674418604651164 [2025-02-08 08:22:57,692 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 171 flow. Second operand 6 states and 123 transitions. [2025-02-08 08:22:57,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 66 transitions, 375 flow [2025-02-08 08:22:57,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 66 transitions, 320 flow, removed 17 selfloop flow, removed 7 redundant places. [2025-02-08 08:22:57,694 INFO L231 Difference]: Finished difference. Result has 56 places, 39 transitions, 169 flow [2025-02-08 08:22:57,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=169, PETRI_PLACES=56, PETRI_TRANSITIONS=39} [2025-02-08 08:22:57,695 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-02-08 08:22:57,695 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 39 transitions, 169 flow [2025-02-08 08:22:57,695 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) [2025-02-08 08:22:57,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:22:57,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:57,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:22:57,695 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:22:57,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:22:57,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1001257129, now seen corresponding path program 1 times [2025-02-08 08:22:57,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:22:57,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906484296] [2025-02-08 08:22:57,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:22:57,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:22:57,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 08:22:57,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 08:22:57,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:22:57,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:22:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:22:57,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:22:57,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906484296] [2025-02-08 08:22:57,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906484296] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:22:57,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:22:57,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:22:57,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342259257] [2025-02-08 08:22:57,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:22:57,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:22:57,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:22:57,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:22:57,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:22:57,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2025-02-08 08:22:57,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 39 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 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) [2025-02-08 08:22:57,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:22:57,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2025-02-08 08:22:57,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:22:57,872 INFO L124 PetriNetUnfolderBase]: 445/715 cut-off events. [2025-02-08 08:22:57,872 INFO L125 PetriNetUnfolderBase]: For 770/770 co-relation queries the response was YES. [2025-02-08 08:22:57,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1976 conditions, 715 events. 445/715 cut-off events. For 770/770 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2377 event pairs, 82 based on Foata normal form. 8/723 useless extension candidates. Maximal degree in co-relation 1963. Up to 444 conditions per place. [2025-02-08 08:22:57,873 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2025-02-08 08:22:57,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 327 flow [2025-02-08 08:22:57,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:22:57,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:22:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2025-02-08 08:22:57,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3798449612403101 [2025-02-08 08:22:57,874 INFO L175 Difference]: Start difference. First operand has 56 places, 39 transitions, 169 flow. Second operand 6 states and 98 transitions. [2025-02-08 08:22:57,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 327 flow [2025-02-08 08:22:57,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 255 flow, removed 10 selfloop flow, removed 8 redundant places. [2025-02-08 08:22:57,876 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2025-02-08 08:22:57,876 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2025-02-08 08:22:57,877 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2025-02-08 08:22:57,877 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2025-02-08 08:22:57,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 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) [2025-02-08 08:22:57,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:22:57,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:22:57,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:22:57,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:22:57,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:22:57,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:22:57,881 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:22:57,883 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:22:57,883 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:22:57,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:22:57 BasicIcfg [2025-02-08 08:22:57,887 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:22:57,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:22:57,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:22:57,887 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:22:57,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:22:48" (3/4) ... [2025-02-08 08:22:57,889 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:22:57,891 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 08:22:57,892 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 08:22:57,892 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 08:22:57,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-02-08 08:22:57,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 08:22:57,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 08:22:57,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:22:57,944 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:22:57,944 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:22:57,944 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:22:57,945 INFO L158 Benchmark]: Toolchain (without parser) took 10464.37ms. Allocated memory was 142.6MB in the beginning and 956.3MB in the end (delta: 813.7MB). Free memory was 105.1MB in the beginning and 588.8MB in the end (delta: -483.8MB). Peak memory consumption was 326.5MB. Max. memory is 16.1GB. [2025-02-08 08:22:57,945 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:22:57,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.39ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 85.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:22:57,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.93ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 83.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:22:57,945 INFO L158 Benchmark]: Boogie Preprocessor took 21.66ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 82.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:22:57,946 INFO L158 Benchmark]: IcfgBuilder took 275.72ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 61.7MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:22:57,946 INFO L158 Benchmark]: TraceAbstraction took 9795.71ms. Allocated memory was 142.6MB in the beginning and 956.3MB in the end (delta: 813.7MB). Free memory was 61.0MB in the beginning and 593.0MB in the end (delta: -531.9MB). Peak memory consumption was 284.6MB. Max. memory is 16.1GB. [2025-02-08 08:22:57,948 INFO L158 Benchmark]: Witness Printer took 56.83ms. Allocated memory is still 956.3MB. Free memory was 593.0MB in the beginning and 588.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:22:57,949 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.39ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 85.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.93ms. Allocated memory is still 142.6MB. Free memory was 85.6MB in the beginning and 83.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.66ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 82.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 275.72ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 61.7MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9795.71ms. Allocated memory was 142.6MB in the beginning and 956.3MB in the end (delta: 813.7MB). Free memory was 61.0MB in the beginning and 593.0MB in the end (delta: -531.9MB). Peak memory consumption was 284.6MB. Max. memory is 16.1GB. * Witness Printer took 56.83ms. Allocated memory is still 956.3MB. Free memory was 593.0MB in the beginning and 588.8MB in the end (delta: 4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 9.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 793 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 789 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2069 IncrementalHoareTripleChecker+Invalid, 2101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 2 mSDtfsCounter, 2069 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=4, InterpolantAutomatonStates: 81, 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, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 851 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:22:57,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE