./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix055.opt.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/mix055.opt.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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:21:11,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:21:11,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:21:11,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:21:11,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:21:11,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:21:11,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:21:11,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:21:11,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:21:11,353 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:21:11,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:21:11,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:21:11,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:21:11,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:21:11,355 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:21:11,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:21:11,356 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:21:11,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:21:11,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:21:11,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:21:11,356 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:21:11,356 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:21:11,357 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:21:11,357 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:21:11,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:21:11,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:21:11,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:21:11,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:21:11,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:21:11,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:21:11,359 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 -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2025-02-08 08:21:11,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:21:11,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:21:11,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:21:11,680 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:21:11,680 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:21:11,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2025-02-08 08:21:13,010 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7023d2ae4/7c74f7b5ad7345fab3b5f61018376d78/FLAG7b84a6bef [2025-02-08 08:21:13,328 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:21:13,329 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2025-02-08 08:21:13,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7023d2ae4/7c74f7b5ad7345fab3b5f61018376d78/FLAG7b84a6bef [2025-02-08 08:21:13,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7023d2ae4/7c74f7b5ad7345fab3b5f61018376d78 [2025-02-08 08:21:13,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:21:13,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:21:13,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:21:13,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:21:13,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:21:13,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bb4272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13, skipping insertion in model container [2025-02-08 08:21:13,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:21:13,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:21:13,781 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:21:13,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:21:13,906 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:21:13,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13 WrapperNode [2025-02-08 08:21:13,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:21:13,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:21:13,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:21:13,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:21:13,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,955 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 149 [2025-02-08 08:21:13,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:21:13,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:21:13,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:21:13,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:21:13,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,967 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,983 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 08:21:13,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,990 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:13,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:21:13,996 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:21:13,996 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:21:13,997 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:21:13,997 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (1/1) ... [2025-02-08 08:21:14,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:21:14,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:21:14,033 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 08:21:14,035 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 08:21:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:21:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:21:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:21:14,058 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:21:14,058 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:21:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:21:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:21:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:21:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:21:14,059 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:21:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:21:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:21:14,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:21:14,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:21:14,061 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 08:21:14,201 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:21:14,203 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:21:14,551 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:21:14,551 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:21:14,776 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:21:14,776 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:21:14,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:21:14 BoogieIcfgContainer [2025-02-08 08:21:14,777 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:21:14,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:21:14,781 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:21:14,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:21:14,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:21:13" (1/3) ... [2025-02-08 08:21:14,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:21:14, skipping insertion in model container [2025-02-08 08:21:14,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:21:13" (2/3) ... [2025-02-08 08:21:14,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:21:14, skipping insertion in model container [2025-02-08 08:21:14,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:21:14" (3/3) ... [2025-02-08 08:21:14,790 INFO L128 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2025-02-08 08:21:14,809 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:21:14,811 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix055.opt.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-08 08:21:14,811 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:21:14,875 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:21:14,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2025-02-08 08:21:14,947 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2025-02-08 08:21:14,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:21:14,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 97 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2025-02-08 08:21:14,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2025-02-08 08:21:14,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2025-02-08 08:21:14,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:21:14,986 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;@3813047f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:21:14,986 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:21:14,998 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:21:14,999 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-08 08:21:14,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:21:14,999 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:15,000 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:21:15,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:15,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:15,007 INFO L85 PathProgramCache]: Analyzing trace with hash -627834450, now seen corresponding path program 1 times [2025-02-08 08:21:15,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:15,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942301493] [2025-02-08 08:21:15,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:21:15,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:15,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 08:21:15,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 08:21:15,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:21:15,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:15,550 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 08:21:15,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:15,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942301493] [2025-02-08 08:21:15,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942301493] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:15,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:15,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:21:15,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927423759] [2025-02-08 08:21:15,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:15,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:21:15,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:15,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:21:15,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:21:15,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-02-08 08:21:15,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 08:21:15,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:15,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-02-08 08:21:15,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:20,410 INFO L124 PetriNetUnfolderBase]: 43115/57503 cut-off events. [2025-02-08 08:21:20,410 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2025-02-08 08:21:20,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114619 conditions, 57503 events. 43115/57503 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 1722. Compared 338394 event pairs, 6395 based on Foata normal form. 2592/60060 useless extension candidates. Maximal degree in co-relation 114607. Up to 47521 conditions per place. [2025-02-08 08:21:20,769 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 57 selfloop transitions, 2 changer transitions 2/69 dead transitions. [2025-02-08 08:21:20,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 272 flow [2025-02-08 08:21:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:21:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:21:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-08 08:21:20,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6415094339622641 [2025-02-08 08:21:20,785 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 102 transitions. [2025-02-08 08:21:20,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 69 transitions, 272 flow [2025-02-08 08:21:20,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 69 transitions, 268 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:21:20,800 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2025-02-08 08:21:20,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2025-02-08 08:21:20,807 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-02-08 08:21:20,807 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2025-02-08 08:21:20,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 08:21:20,808 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:20,808 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 08:21:20,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:21:20,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:20,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:20,811 INFO L85 PathProgramCache]: Analyzing trace with hash 260334669, now seen corresponding path program 1 times [2025-02-08 08:21:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:20,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621026633] [2025-02-08 08:21:20,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:21:20,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:20,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:21:20,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:21:20,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:21:20,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:20,945 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 08:21:20,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:20,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621026633] [2025-02-08 08:21:20,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621026633] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:20,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:20,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:21:20,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823754484] [2025-02-08 08:21:20,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:20,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:21:20,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:20,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:21:20,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:21:20,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:21:20,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 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) [2025-02-08 08:21:20,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:20,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:21:20,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:24,221 INFO L124 PetriNetUnfolderBase]: 38795/54911 cut-off events. [2025-02-08 08:21:24,221 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2025-02-08 08:21:24,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108353 conditions, 54911 events. 38795/54911 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 1736. Compared 360383 event pairs, 38795 based on Foata normal form. 1296/56172 useless extension candidates. Maximal degree in co-relation 108343. Up to 50976 conditions per place. [2025-02-08 08:21:24,512 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2025-02-08 08:21:24,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 170 flow [2025-02-08 08:21:24,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:21:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:21:24,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-08 08:21:24,516 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2025-02-08 08:21:24,516 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 70 transitions. [2025-02-08 08:21:24,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 170 flow [2025-02-08 08:21:24,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:21:24,540 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2025-02-08 08:21:24,541 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2025-02-08 08:21:24,541 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-02-08 08:21:24,541 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2025-02-08 08:21:24,541 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) [2025-02-08 08:21:24,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:24,542 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 08:21:24,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:21:24,542 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:24,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:24,543 INFO L85 PathProgramCache]: Analyzing trace with hash 260335212, now seen corresponding path program 1 times [2025-02-08 08:21:24,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:24,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705708037] [2025-02-08 08:21:24,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:21:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:24,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:21:24,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:21:24,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:21:24,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:24,907 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 08:21:24,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:24,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705708037] [2025-02-08 08:21:24,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705708037] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:24,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:24,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:21:24,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250823244] [2025-02-08 08:21:24,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:24,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:21:24,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:24,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:21:24,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:21:24,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:21:24,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 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 08:21:24,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:24,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:21:24,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:28,762 INFO L124 PetriNetUnfolderBase]: 49475/67713 cut-off events. [2025-02-08 08:21:28,762 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:21:28,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133491 conditions, 67713 events. 49475/67713 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2115. Compared 435884 event pairs, 10351 based on Foata normal form. 0/66485 useless extension candidates. Maximal degree in co-relation 133485. Up to 43215 conditions per place. [2025-02-08 08:21:29,099 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 55 selfloop transitions, 3 changer transitions 92/156 dead transitions. [2025-02-08 08:21:29,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 156 transitions, 628 flow [2025-02-08 08:21:29,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:21:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:21:29,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2025-02-08 08:21:29,103 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5660377358490566 [2025-02-08 08:21:29,103 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 240 transitions. [2025-02-08 08:21:29,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 156 transitions, 628 flow [2025-02-08 08:21:29,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 156 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:21:29,110 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 126 flow [2025-02-08 08:21:29,110 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2025-02-08 08:21:29,111 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2025-02-08 08:21:29,111 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 126 flow [2025-02-08 08:21:29,112 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 08:21:29,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:29,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:21:29,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:21:29,112 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:29,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:29,113 INFO L85 PathProgramCache]: Analyzing trace with hash 246715883, now seen corresponding path program 1 times [2025-02-08 08:21:29,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:29,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415794171] [2025-02-08 08:21:29,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:21:29,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:29,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:21:29,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:21:29,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:21:29,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:29,622 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 08:21:29,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415794171] [2025-02-08 08:21:29,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415794171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:29,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:29,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:21:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417593219] [2025-02-08 08:21:29,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:29,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:21:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:29,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:21:29,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:21:29,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:21:29,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 126 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 08:21:29,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:29,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:21:29,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:33,237 INFO L124 PetriNetUnfolderBase]: 39895/55165 cut-off events. [2025-02-08 08:21:33,238 INFO L125 PetriNetUnfolderBase]: For 25286/25289 co-relation queries the response was YES. [2025-02-08 08:21:33,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127901 conditions, 55165 events. 39895/55165 cut-off events. For 25286/25289 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 346971 event pairs, 9007 based on Foata normal form. 1224/56374 useless extension candidates. Maximal degree in co-relation 127889. Up to 41665 conditions per place. [2025-02-08 08:21:33,566 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 55 selfloop transitions, 3 changer transitions 69/133 dead transitions. [2025-02-08 08:21:33,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 133 transitions, 638 flow [2025-02-08 08:21:33,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:21:33,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:21:33,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-02-08 08:21:33,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5444743935309974 [2025-02-08 08:21:33,568 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 126 flow. Second operand 7 states and 202 transitions. [2025-02-08 08:21:33,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 133 transitions, 638 flow [2025-02-08 08:21:34,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 133 transitions, 625 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 08:21:34,505 INFO L231 Difference]: Finished difference. Result has 66 places, 45 transitions, 154 flow [2025-02-08 08:21:34,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=154, PETRI_PLACES=66, PETRI_TRANSITIONS=45} [2025-02-08 08:21:34,506 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places. [2025-02-08 08:21:34,506 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 45 transitions, 154 flow [2025-02-08 08:21:34,506 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 08:21:34,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:34,507 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:21:34,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:21:34,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:34,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:34,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1080884855, now seen corresponding path program 1 times [2025-02-08 08:21:34,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:34,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537300423] [2025-02-08 08:21:34,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:21:34,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:34,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:21:34,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:21:34,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:21:34,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:35,469 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 08:21:35,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:35,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537300423] [2025-02-08 08:21:35,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537300423] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:35,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:35,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:21:35,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639923641] [2025-02-08 08:21:35,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:35,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:21:35,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:35,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:21:35,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:21:35,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:21:35,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 45 transitions, 154 flow. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 08:21:35,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:35,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:21:35,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:39,231 INFO L124 PetriNetUnfolderBase]: 37259/51441 cut-off events. [2025-02-08 08:21:39,232 INFO L125 PetriNetUnfolderBase]: For 49198/49243 co-relation queries the response was YES. [2025-02-08 08:21:39,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131939 conditions, 51441 events. 37259/51441 cut-off events. For 49198/49243 co-relation queries the response was YES. Maximal size of possible extension queue 1562. Compared 315136 event pairs, 8599 based on Foata normal form. 1056/52482 useless extension candidates. Maximal degree in co-relation 131923. Up to 36913 conditions per place. [2025-02-08 08:21:39,569 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 73 selfloop transitions, 5 changer transitions 69/153 dead transitions. [2025-02-08 08:21:39,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 153 transitions, 792 flow [2025-02-08 08:21:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:21:39,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:21:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 231 transitions. [2025-02-08 08:21:39,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5448113207547169 [2025-02-08 08:21:39,571 INFO L175 Difference]: Start difference. First operand has 66 places, 45 transitions, 154 flow. Second operand 8 states and 231 transitions. [2025-02-08 08:21:39,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 153 transitions, 792 flow [2025-02-08 08:21:40,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 153 transitions, 781 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 08:21:40,046 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 192 flow [2025-02-08 08:21:40,046 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=192, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2025-02-08 08:21:40,047 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 11 predicate places. [2025-02-08 08:21:40,047 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 192 flow [2025-02-08 08:21:40,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 08:21:40,047 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:40,047 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:21:40,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:21:40,047 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:40,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:40,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2109979811, now seen corresponding path program 1 times [2025-02-08 08:21:40,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:40,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963034742] [2025-02-08 08:21:40,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:21:40,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:40,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:21:40,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:21:40,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:21:40,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:40,977 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 08:21:40,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:40,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963034742] [2025-02-08 08:21:40,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963034742] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:40,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:40,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:21:40,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136531573] [2025-02-08 08:21:40,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:40,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:21:40,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:40,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:21:40,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:21:40,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:21:40,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 192 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 08:21:40,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:40,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:21:40,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:47,218 INFO L124 PetriNetUnfolderBase]: 60149/80775 cut-off events. [2025-02-08 08:21:47,218 INFO L125 PetriNetUnfolderBase]: For 141089/141104 co-relation queries the response was YES. [2025-02-08 08:21:47,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228664 conditions, 80775 events. 60149/80775 cut-off events. For 141089/141104 co-relation queries the response was YES. Maximal size of possible extension queue 2339. Compared 491460 event pairs, 3438 based on Foata normal form. 1664/82431 useless extension candidates. Maximal degree in co-relation 228644. Up to 38351 conditions per place. [2025-02-08 08:21:47,788 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 100 selfloop transitions, 22 changer transitions 138/266 dead transitions. [2025-02-08 08:21:47,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 266 transitions, 1537 flow [2025-02-08 08:21:47,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:21:47,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:21:47,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 393 transitions. [2025-02-08 08:21:47,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5703918722786647 [2025-02-08 08:21:47,790 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 192 flow. Second operand 13 states and 393 transitions. [2025-02-08 08:21:47,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 266 transitions, 1537 flow [2025-02-08 08:21:49,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 266 transitions, 1489 flow, removed 18 selfloop flow, removed 4 redundant places. [2025-02-08 08:21:49,622 INFO L231 Difference]: Finished difference. Result has 87 places, 66 transitions, 447 flow [2025-02-08 08:21:49,622 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=447, PETRI_PLACES=87, PETRI_TRANSITIONS=66} [2025-02-08 08:21:49,623 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 27 predicate places. [2025-02-08 08:21:49,623 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 66 transitions, 447 flow [2025-02-08 08:21:49,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 08:21:49,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:21:49,623 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:21:49,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:21:49,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:21:49,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:21:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1876286971, now seen corresponding path program 2 times [2025-02-08 08:21:49,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:21:49,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239178626] [2025-02-08 08:21:49,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:21:49,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:21:49,633 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:21:49,652 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:21:49,652 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:21:49,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:21:50,127 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 08:21:50,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:21:50,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239178626] [2025-02-08 08:21:50,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239178626] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:21:50,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:21:50,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:21:50,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427279953] [2025-02-08 08:21:50,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:21:50,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:21:50,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:21:50,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:21:50,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:21:50,131 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:21:50,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 66 transitions, 447 flow. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 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 08:21:50,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:21:50,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:21:50,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:21:56,711 INFO L124 PetriNetUnfolderBase]: 55815/77229 cut-off events. [2025-02-08 08:21:56,711 INFO L125 PetriNetUnfolderBase]: For 348829/348860 co-relation queries the response was YES. [2025-02-08 08:21:57,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286147 conditions, 77229 events. 55815/77229 cut-off events. For 348829/348860 co-relation queries the response was YES. Maximal size of possible extension queue 2035. Compared 489826 event pairs, 10390 based on Foata normal form. 1334/78548 useless extension candidates. Maximal degree in co-relation 286117. Up to 55603 conditions per place.