./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix026.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix026.oepc.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 a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:41:15,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:41:15,134 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:41:15,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:41:15,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:41:15,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:41:15,156 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:41:15,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:41:15,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:41:15,156 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:41:15,156 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:41:15,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:41:15,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:41:15,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:41:15,156 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:41:15,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:41:15,157 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:41:15,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:41:15,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:41:15,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:41:15,158 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 -> a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 [2025-02-06 12:41:15,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:41:15,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:41:15,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:41:15,401 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:41:15,402 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:41:15,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2025-02-06 12:41:16,681 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0ac83d9cc/4c776a410614401c844cda9364407cc1/FLAGa695b2b4c [2025-02-06 12:41:17,025 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:41:17,026 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2025-02-06 12:41:17,034 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0ac83d9cc/4c776a410614401c844cda9364407cc1/FLAGa695b2b4c [2025-02-06 12:41:17,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0ac83d9cc/4c776a410614401c844cda9364407cc1 [2025-02-06 12:41:17,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:41:17,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:41:17,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:41:17,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:41:17,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:41:17,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf0269b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17, skipping insertion in model container [2025-02-06 12:41:17,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,087 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:41:17,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:41:17,396 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:41:17,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:41:17,504 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:41:17,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17 WrapperNode [2025-02-06 12:41:17,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:41:17,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:41:17,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:41:17,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:41:17,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,536 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2025-02-06 12:41:17,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:41:17,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:41:17,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:41:17,538 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:41:17,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,558 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 12:41:17,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,566 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:41:17,572 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:41:17,572 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:41:17,572 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:41:17,572 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (1/1) ... [2025-02-06 12:41:17,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:41:17,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:41:17,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:41:17,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:41:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:41:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:41:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 12:41:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 12:41:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 12:41:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 12:41:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 12:41:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 12:41:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 12:41:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 12:41:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 12:41:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:41:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:41:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:41:17,637 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:41:17,748 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:41:17,749 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:41:18,120 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:41:18,120 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:41:18,350 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:41:18,350 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:41:18,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:41:18 BoogieIcfgContainer [2025-02-06 12:41:18,351 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:41:18,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:41:18,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:41:18,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:41:18,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:41:17" (1/3) ... [2025-02-06 12:41:18,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da96eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:41:18, skipping insertion in model container [2025-02-06 12:41:18,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:41:17" (2/3) ... [2025-02-06 12:41:18,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da96eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:41:18, skipping insertion in model container [2025-02-06 12:41:18,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:41:18" (3/3) ... [2025-02-06 12:41:18,359 INFO L128 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2025-02-06 12:41:18,370 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:41:18,374 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix026.oepc.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-06 12:41:18,374 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:41:18,421 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 12:41:18,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 54 transitions, 124 flow [2025-02-06 12:41:18,462 INFO L124 PetriNetUnfolderBase]: 2/50 cut-off events. [2025-02-06 12:41:18,464 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:18,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 50 events. 2/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-02-06 12:41:18,466 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 54 transitions, 124 flow [2025-02-06 12:41:18,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 50 transitions, 112 flow [2025-02-06 12:41:18,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:41:18,485 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;@2f975bde, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:41:18,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 12:41:18,488 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:41:18,488 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-02-06 12:41:18,488 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:18,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:18,488 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 12:41:18,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:18,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:18,492 INFO L85 PathProgramCache]: Analyzing trace with hash 13860746, now seen corresponding path program 1 times [2025-02-06 12:41:18,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:18,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217468550] [2025-02-06 12:41:18,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:18,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:18,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 12:41:18,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 12:41:18,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:18,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:18,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:18,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:18,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217468550] [2025-02-06 12:41:18,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217468550] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:18,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:18,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:41:18,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997182089] [2025-02-06 12:41:18,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:18,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:41:18,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:18,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:41:18,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:41:18,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:41:19,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:19,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:19,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:41:19,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:24,140 INFO L124 PetriNetUnfolderBase]: 50459/66898 cut-off events. [2025-02-06 12:41:24,141 INFO L125 PetriNetUnfolderBase]: For 251/251 co-relation queries the response was YES. [2025-02-06 12:41:24,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133518 conditions, 66898 events. 50459/66898 cut-off events. For 251/251 co-relation queries the response was YES. Maximal size of possible extension queue 1925. Compared 409867 event pairs, 6239 based on Foata normal form. 2988/69838 useless extension candidates. Maximal degree in co-relation 133506. Up to 57251 conditions per place. [2025-02-06 12:41:24,562 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 65 selfloop transitions, 2 changer transitions 2/77 dead transitions. [2025-02-06 12:41:24,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 313 flow [2025-02-06 12:41:24,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:41:24,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:41:24,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-02-06 12:41:24,711 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6790123456790124 [2025-02-06 12:41:24,712 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 110 transitions. [2025-02-06 12:41:24,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 313 flow [2025-02-06 12:41:24,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 77 transitions, 306 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:41:24,719 INFO L231 Difference]: Finished difference. Result has 57 places, 45 transitions, 102 flow [2025-02-06 12:41:24,721 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=57, PETRI_TRANSITIONS=45} [2025-02-06 12:41:24,723 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2025-02-06 12:41:24,723 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 45 transitions, 102 flow [2025-02-06 12:41:24,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:24,723 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:24,723 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:24,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 12:41:24,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:24,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:24,725 INFO L85 PathProgramCache]: Analyzing trace with hash 928064886, now seen corresponding path program 1 times [2025-02-06 12:41:24,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:24,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290406419] [2025-02-06 12:41:24,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:24,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:24,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:41:24,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:41:24,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:24,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:24,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:24,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:24,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290406419] [2025-02-06 12:41:24,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290406419] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:24,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:24,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 12:41:24,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025221658] [2025-02-06 12:41:24,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:24,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:41:24,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:24,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:41:24,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:41:24,831 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:24,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:24,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:24,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:24,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:28,334 INFO L124 PetriNetUnfolderBase]: 45383/63227 cut-off events. [2025-02-06 12:41:28,335 INFO L125 PetriNetUnfolderBase]: For 2354/2354 co-relation queries the response was YES. [2025-02-06 12:41:28,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125611 conditions, 63227 events. 45383/63227 cut-off events. For 2354/2354 co-relation queries the response was YES. Maximal size of possible extension queue 1946. Compared 408726 event pairs, 45383 based on Foata normal form. 1512/64452 useless extension candidates. Maximal degree in co-relation 125601. Up to 59508 conditions per place. [2025-02-06 12:41:28,658 INFO L140 encePairwiseOnDemand]: 52/54 looper letters, 35 selfloop transitions, 1 changer transitions 1/44 dead transitions. [2025-02-06 12:41:28,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 44 transitions, 174 flow [2025-02-06 12:41:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:41:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:41:28,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2025-02-06 12:41:28,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4382716049382716 [2025-02-06 12:41:28,659 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 71 transitions. [2025-02-06 12:41:28,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 44 transitions, 174 flow [2025-02-06 12:41:28,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 44 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:41:28,661 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 96 flow [2025-02-06 12:41:28,661 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-06 12:41:28,662 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2025-02-06 12:41:28,662 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 96 flow [2025-02-06 12:41:28,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:28,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:28,662 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:28,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 12:41:28,663 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:28,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:28,663 INFO L85 PathProgramCache]: Analyzing trace with hash 928065703, now seen corresponding path program 1 times [2025-02-06 12:41:28,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:28,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541330115] [2025-02-06 12:41:28,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:28,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:28,676 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 12:41:28,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 12:41:28,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:28,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:28,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:28,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541330115] [2025-02-06 12:41:28,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541330115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:28,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:28,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:41:28,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282365391] [2025-02-06 12:41:28,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:28,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:41:28,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:28,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:41:28,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:41:28,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:28,885 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 96 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) [2025-02-06 12:41:28,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:28,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:28,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:33,355 INFO L124 PetriNetUnfolderBase]: 53483/72623 cut-off events. [2025-02-06 12:41:33,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:41:33,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143561 conditions, 72623 events. 53483/72623 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2120. Compared 447718 event pairs, 9851 based on Foata normal form. 0/71472 useless extension candidates. Maximal degree in co-relation 143555. Up to 37153 conditions per place. [2025-02-06 12:41:33,643 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 53 selfloop transitions, 2 changer transitions 97/158 dead transitions. [2025-02-06 12:41:33,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 158 transitions, 630 flow [2025-02-06 12:41:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:41:33,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:41:33,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 242 transitions. [2025-02-06 12:41:33,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5601851851851852 [2025-02-06 12:41:33,645 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 96 flow. Second operand 8 states and 242 transitions. [2025-02-06 12:41:33,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 158 transitions, 630 flow [2025-02-06 12:41:33,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 158 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:41:33,651 INFO L231 Difference]: Finished difference. Result has 65 places, 42 transitions, 109 flow [2025-02-06 12:41:33,651 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=109, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2025-02-06 12:41:33,652 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 4 predicate places. [2025-02-06 12:41:33,652 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 109 flow [2025-02-06 12:41:33,653 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) [2025-02-06 12:41:33,653 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:33,653 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:33,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 12:41:33,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:33,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:33,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1707354385, now seen corresponding path program 1 times [2025-02-06 12:41:33,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:33,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863682879] [2025-02-06 12:41:33,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:33,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 12:41:33,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 12:41:33,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:33,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:33,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:33,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:33,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863682879] [2025-02-06 12:41:33,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863682879] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:33,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:33,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:41:33,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573203479] [2025-02-06 12:41:33,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:33,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:41:33,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:33,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:41:33,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:41:33,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:41:33,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:33,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:33,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:41:33,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:37,328 INFO L124 PetriNetUnfolderBase]: 33511/46615 cut-off events. [2025-02-06 12:41:37,328 INFO L125 PetriNetUnfolderBase]: For 2856/2856 co-relation queries the response was YES. [2025-02-06 12:41:37,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98595 conditions, 46615 events. 33511/46615 cut-off events. For 2856/2856 co-relation queries the response was YES. Maximal size of possible extension queue 1351. Compared 289876 event pairs, 4407 based on Foata normal form. 1512/48080 useless extension candidates. Maximal degree in co-relation 98583. Up to 26017 conditions per place. [2025-02-06 12:41:37,610 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 75 selfloop transitions, 6 changer transitions 1/88 dead transitions. [2025-02-06 12:41:37,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 88 transitions, 377 flow [2025-02-06 12:41:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:41:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:41:37,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2025-02-06 12:41:37,614 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2025-02-06 12:41:37,614 INFO L175 Difference]: Start difference. First operand has 65 places, 42 transitions, 109 flow. Second operand 4 states and 132 transitions. [2025-02-06 12:41:37,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 88 transitions, 377 flow [2025-02-06 12:41:37,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 88 transitions, 361 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-06 12:41:37,903 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 139 flow [2025-02-06 12:41:37,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2025-02-06 12:41:37,903 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2025-02-06 12:41:37,903 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 139 flow [2025-02-06 12:41:37,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:37,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:37,904 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] [2025-02-06 12:41:37,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 12:41:37,904 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:37,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:37,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1569017368, now seen corresponding path program 1 times [2025-02-06 12:41:37,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:37,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644281830] [2025-02-06 12:41:37,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:37,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:37,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 12:41:37,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 12:41:37,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:37,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:38,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:38,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644281830] [2025-02-06 12:41:38,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644281830] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:38,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:38,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:41:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092539276] [2025-02-06 12:41:38,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:38,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:41:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:38,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:41:38,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:41:38,099 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:41:38,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:38,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:38,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:41:38,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:40,494 INFO L124 PetriNetUnfolderBase]: 22087/30967 cut-off events. [2025-02-06 12:41:40,495 INFO L125 PetriNetUnfolderBase]: For 6264/6264 co-relation queries the response was YES. [2025-02-06 12:41:40,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71177 conditions, 30967 events. 22087/30967 cut-off events. For 6264/6264 co-relation queries the response was YES. Maximal size of possible extension queue 776. Compared 182335 event pairs, 2563 based on Foata normal form. 1192/32112 useless extension candidates. Maximal degree in co-relation 71167. Up to 12193 conditions per place. [2025-02-06 12:41:40,650 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 97 selfloop transitions, 10 changer transitions 1/114 dead transitions. [2025-02-06 12:41:40,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 523 flow [2025-02-06 12:41:40,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:41:40,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:41:40,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2025-02-06 12:41:40,651 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2025-02-06 12:41:40,652 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 139 flow. Second operand 5 states and 170 transitions. [2025-02-06 12:41:40,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 523 flow [2025-02-06 12:41:40,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 114 transitions, 512 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 12:41:40,658 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 191 flow [2025-02-06 12:41:40,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2025-02-06 12:41:40,658 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2025-02-06 12:41:40,659 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 191 flow [2025-02-06 12:41:40,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:40,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:40,659 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] [2025-02-06 12:41:40,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 12:41:40,659 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:40,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1427472130, now seen corresponding path program 1 times [2025-02-06 12:41:40,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:40,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299969052] [2025-02-06 12:41:40,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:40,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:40,667 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 12:41:40,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 12:41:40,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:40,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:41,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:41,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299969052] [2025-02-06 12:41:41,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299969052] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:41,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:41,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 12:41:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015304855] [2025-02-06 12:41:41,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:41,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:41:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:41,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:41:41,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:41:41,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:41,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 191 flow. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:41,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:41,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:41,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:45,689 INFO L124 PetriNetUnfolderBase]: 39069/54074 cut-off events. [2025-02-06 12:41:45,689 INFO L125 PetriNetUnfolderBase]: For 33416/33416 co-relation queries the response was YES. [2025-02-06 12:41:45,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137030 conditions, 54074 events. 39069/54074 cut-off events. For 33416/33416 co-relation queries the response was YES. Maximal size of possible extension queue 1328. Compared 334032 event pairs, 12896 based on Foata normal form. 284/54331 useless extension candidates. Maximal degree in co-relation 137018. Up to 25668 conditions per place. [2025-02-06 12:41:45,969 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 122 selfloop transitions, 13 changer transitions 83/224 dead transitions. [2025-02-06 12:41:45,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 224 transitions, 1301 flow [2025-02-06 12:41:45,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:41:45,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 12:41:45,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 294 transitions. [2025-02-06 12:41:45,972 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2025-02-06 12:41:45,972 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 191 flow. Second operand 10 states and 294 transitions. [2025-02-06 12:41:45,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 224 transitions, 1301 flow [2025-02-06 12:41:46,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 224 transitions, 1184 flow, removed 23 selfloop flow, removed 4 redundant places. [2025-02-06 12:41:46,215 INFO L231 Difference]: Finished difference. Result has 74 places, 62 transitions, 248 flow [2025-02-06 12:41:46,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=248, PETRI_PLACES=74, PETRI_TRANSITIONS=62} [2025-02-06 12:41:46,216 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 13 predicate places. [2025-02-06 12:41:46,217 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 62 transitions, 248 flow [2025-02-06 12:41:46,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:46,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:46,217 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] [2025-02-06 12:41:46,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 12:41:46,218 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:46,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:46,218 INFO L85 PathProgramCache]: Analyzing trace with hash 674389292, now seen corresponding path program 2 times [2025-02-06 12:41:46,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:46,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329577176] [2025-02-06 12:41:46,218 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:41:46,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:46,227 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-02-06 12:41:46,260 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 12:41:46,260 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 12:41:46,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:46,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:46,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329577176] [2025-02-06 12:41:46,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329577176] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:46,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:46,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:41:46,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733631777] [2025-02-06 12:41:46,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:46,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:41:46,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:46,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:41:46,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:41:46,407 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 54 [2025-02-06 12:41:46,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 62 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:46,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:46,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 54 [2025-02-06 12:41:46,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:41:49,307 INFO L124 PetriNetUnfolderBase]: 25904/36114 cut-off events. [2025-02-06 12:41:49,308 INFO L125 PetriNetUnfolderBase]: For 21134/21134 co-relation queries the response was YES. [2025-02-06 12:41:49,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95542 conditions, 36114 events. 25904/36114 cut-off events. For 21134/21134 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 215580 event pairs, 3088 based on Foata normal form. 1380/37453 useless extension candidates. Maximal degree in co-relation 95525. Up to 11724 conditions per place. [2025-02-06 12:41:49,620 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 151 selfloop transitions, 14 changer transitions 11/182 dead transitions. [2025-02-06 12:41:49,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 182 transitions, 1029 flow [2025-02-06 12:41:49,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:41:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:41:49,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2025-02-06 12:41:49,622 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6358024691358025 [2025-02-06 12:41:49,622 INFO L175 Difference]: Start difference. First operand has 74 places, 62 transitions, 248 flow. Second operand 6 states and 206 transitions. [2025-02-06 12:41:49,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 182 transitions, 1029 flow [2025-02-06 12:41:49,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 182 transitions, 1012 flow, removed 6 selfloop flow, removed 5 redundant places. [2025-02-06 12:41:49,676 INFO L231 Difference]: Finished difference. Result has 72 places, 64 transitions, 302 flow [2025-02-06 12:41:49,676 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=72, PETRI_TRANSITIONS=64} [2025-02-06 12:41:49,678 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 11 predicate places. [2025-02-06 12:41:49,678 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 64 transitions, 302 flow [2025-02-06 12:41:49,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:49,679 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:41:49,679 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:41:49,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 12:41:49,679 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-06 12:41:49,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:41:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash 530157639, now seen corresponding path program 1 times [2025-02-06 12:41:49,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 12:41:49,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862161287] [2025-02-06 12:41:49,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:41:49,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 12:41:49,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 12:41:49,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 12:41:49,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:41:49,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:41:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:41:50,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 12:41:50,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862161287] [2025-02-06 12:41:50,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862161287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:41:50,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:41:50,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 12:41:50,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14434161] [2025-02-06 12:41:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:41:50,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 12:41:50,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 12:41:50,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 12:41:50,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-06 12:41:50,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 54 [2025-02-06 12:41:50,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 64 transitions, 302 flow. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 10 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:41:50,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:41:50,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 54 [2025-02-06 12:41:50,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand