./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.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/mix051_pso.opt_rmo.opt_tso.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 0f6a99f321ab4c9a330ddab5bc184070524e662cb34c3dfc8d7fb0257fb493dd --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:20:27,040 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:20:27,079 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:20:27,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:20:27,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:20:27,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:20:27,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:20:27,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:20:27,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:20:27,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:20:27,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:20:27,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:20:27,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:20:27,103 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:20:27,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:20:27,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:20:27,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:20:27,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:20:27,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:20:27,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:20:27,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:20:27,104 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 -> 0f6a99f321ab4c9a330ddab5bc184070524e662cb34c3dfc8d7fb0257fb493dd [2025-02-08 08:20:27,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:20:27,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:20:27,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:20:27,290 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:20:27,291 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:20:27,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2025-02-08 08:20:28,543 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e54ebcae/00248705c9a74b7e89abfec0296cc78f/FLAG44b110c5b [2025-02-08 08:20:28,857 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:20:28,857 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix051_pso.opt_rmo.opt_tso.opt.i [2025-02-08 08:20:28,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e54ebcae/00248705c9a74b7e89abfec0296cc78f/FLAG44b110c5b [2025-02-08 08:20:29,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e54ebcae/00248705c9a74b7e89abfec0296cc78f [2025-02-08 08:20:29,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:20:29,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:20:29,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:20:29,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:20:29,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:20:29,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440f2b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29, skipping insertion in model container [2025-02-08 08:20:29,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:20:29,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:20:29,434 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:20:29,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:20:29,493 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:20:29,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29 WrapperNode [2025-02-08 08:20:29,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:20:29,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:20:29,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:20:29,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:20:29,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,508 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,528 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 131 [2025-02-08 08:20:29,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:20:29,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:20:29,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:20:29,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:20:29,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,538 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,557 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 08:20:29,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,562 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:20:29,574 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:20:29,577 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:20:29,578 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:20:29,579 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (1/1) ... [2025-02-08 08:20:29,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:20:29,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:20:29,613 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 08:20:29,624 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 08:20:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 08:20:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:20:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 08:20:29,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 08:20:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 08:20:29,642 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 08:20:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 08:20:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 08:20:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 08:20:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 08:20:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:20:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 08:20:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:20:29,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:20:29,645 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 08:20:29,752 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:20:29,754 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:20:30,018 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:20:30,018 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:20:30,160 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:20:30,161 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:20:30,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:20:30 BoogieIcfgContainer [2025-02-08 08:20:30,161 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:20:30,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:20:30,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:20:30,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:20:30,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:20:29" (1/3) ... [2025-02-08 08:20:30,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c973b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:20:30, skipping insertion in model container [2025-02-08 08:20:30,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:20:29" (2/3) ... [2025-02-08 08:20:30,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c973b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:20:30, skipping insertion in model container [2025-02-08 08:20:30,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:20:30" (3/3) ... [2025-02-08 08:20:30,167 INFO L128 eAbstractionObserver]: Analyzing ICFG mix051_pso.opt_rmo.opt_tso.opt.i [2025-02-08 08:20:30,176 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:20:30,182 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix051_pso.opt_rmo.opt_tso.opt.i that has 5 procedures, 52 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2025-02-08 08:20:30,182 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:20:30,243 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:20:30,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2025-02-08 08:20:30,298 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2025-02-08 08:20:30,302 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:20:30,311 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 100 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 08:20:30,312 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2025-02-08 08:20:30,315 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2025-02-08 08:20:30,327 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:20:30,344 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;@7e11d1f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:20:30,344 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-08 08:20:30,351 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:20:30,352 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-08 08:20:30,352 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:20:30,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:30,353 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:20:30,353 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 08:20:30,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:30,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1756685790, now seen corresponding path program 1 times [2025-02-08 08:20:30,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:30,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669863039] [2025-02-08 08:20:30,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:30,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:30,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 08:20:30,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 08:20:30,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:30,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:30,814 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 08:20:30,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:30,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669863039] [2025-02-08 08:20:30,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669863039] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:30,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:30,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:20:30,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837714708] [2025-02-08 08:20:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:30,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:20:30,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:30,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:20:30,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:20:30,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-02-08 08:20:30,847 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 08:20:30,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:30,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-02-08 08:20:30,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:34,293 INFO L124 PetriNetUnfolderBase]: 43115/57503 cut-off events. [2025-02-08 08:20:34,293 INFO L125 PetriNetUnfolderBase]: For 230/230 co-relation queries the response was YES. [2025-02-08 08:20:34,370 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 1721. Compared 339151 event pairs, 6395 based on Foata normal form. 2592/60070 useless extension candidates. Maximal degree in co-relation 114607. Up to 47521 conditions per place. [2025-02-08 08:20:34,530 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 57 selfloop transitions, 2 changer transitions 2/69 dead transitions. [2025-02-08 08:20:34,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 69 transitions, 272 flow [2025-02-08 08:20:34,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:20:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:20:34,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-02-08 08:20:34,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6415094339622641 [2025-02-08 08:20:34,538 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 102 transitions. [2025-02-08 08:20:34,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 69 transitions, 272 flow [2025-02-08 08:20:34,544 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 08:20:34,546 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2025-02-08 08:20:34,547 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 08:20:34,549 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2025-02-08 08:20:34,549 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2025-02-08 08:20:34,549 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 08:20:34,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:34,549 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 08:20:34,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:20:34,550 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 08:20:34,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash 90242459, now seen corresponding path program 1 times [2025-02-08 08:20:34,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:34,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744382993] [2025-02-08 08:20:34,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:34,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:34,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:20:34,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:20:34,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:34,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:34,625 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 08:20:34,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:34,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744382993] [2025-02-08 08:20:34,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744382993] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:34,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:34,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:20:34,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993863878] [2025-02-08 08:20:34,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:34,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:20:34,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:34,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:20:34,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:20:34,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:20:34,628 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 08:20:34,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:34,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:20:34,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:37,405 INFO L124 PetriNetUnfolderBase]: 38795/54911 cut-off events. [2025-02-08 08:20:37,406 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2025-02-08 08:20:37,542 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 360710 event pairs, 38795 based on Foata normal form. 1296/56182 useless extension candidates. Maximal degree in co-relation 108343. Up to 50976 conditions per place. [2025-02-08 08:20:37,743 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 34 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2025-02-08 08:20:37,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 170 flow [2025-02-08 08:20:37,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:20:37,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:20:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2025-02-08 08:20:37,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2025-02-08 08:20:37,744 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 70 transitions. [2025-02-08 08:20:37,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 170 flow [2025-02-08 08:20:37,756 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 08:20:37,757 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2025-02-08 08:20:37,757 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 08:20:37,757 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2025-02-08 08:20:37,758 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2025-02-08 08:20:37,758 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 08:20:37,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:37,758 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 08:20:37,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:20:37,758 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 08:20:37,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:37,758 INFO L85 PathProgramCache]: Analyzing trace with hash 90243336, now seen corresponding path program 1 times [2025-02-08 08:20:37,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:37,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505314181] [2025-02-08 08:20:37,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:37,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:37,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:20:37,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:20:37,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:37,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:37,944 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 08:20:37,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:37,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505314181] [2025-02-08 08:20:37,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505314181] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:37,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:37,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:20:37,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045800517] [2025-02-08 08:20:37,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:37,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:20:37,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:37,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:20:37,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:20:37,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:20:37,946 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 08:20:37,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:37,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:20:37,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:41,613 INFO L124 PetriNetUnfolderBase]: 49475/67713 cut-off events. [2025-02-08 08:20:41,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:20:41,802 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 2111. Compared 440810 event pairs, 9199 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 08:20:41,949 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 55 selfloop transitions, 3 changer transitions 92/156 dead transitions. [2025-02-08 08:20:41,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 156 transitions, 628 flow [2025-02-08 08:20:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:20:41,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:20:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 240 transitions. [2025-02-08 08:20:41,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5660377358490566 [2025-02-08 08:20:41,954 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 8 states and 240 transitions. [2025-02-08 08:20:41,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 156 transitions, 628 flow [2025-02-08 08:20:41,955 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 08:20:41,959 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 126 flow [2025-02-08 08:20:41,959 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 08:20:41,960 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2025-02-08 08:20:41,960 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 126 flow [2025-02-08 08:20:41,960 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 08:20:41,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:41,961 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 08:20:41,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:20:41,961 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 08:20:41,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1100368967, now seen corresponding path program 1 times [2025-02-08 08:20:41,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:41,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521464716] [2025-02-08 08:20:41,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:41,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:41,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:20:41,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:20:41,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:41,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:42,103 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 08:20:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:42,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521464716] [2025-02-08 08:20:42,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521464716] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:42,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:42,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:20:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040499245] [2025-02-08 08:20:42,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:42,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:20:42,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:42,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:20:42,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:20:42,107 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-02-08 08:20:42,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 08:20:42,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:42,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-02-08 08:20:42,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:44,995 INFO L124 PetriNetUnfolderBase]: 31203/43761 cut-off events. [2025-02-08 08:20:44,995 INFO L125 PetriNetUnfolderBase]: For 15726/15729 co-relation queries the response was YES. [2025-02-08 08:20:45,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99799 conditions, 43761 events. 31203/43761 cut-off events. For 15726/15729 co-relation queries the response was YES. Maximal size of possible extension queue 1391. Compared 276815 event pairs, 3565 based on Foata normal form. 1296/45041 useless extension candidates. Maximal degree in co-relation 99787. Up to 25489 conditions per place. [2025-02-08 08:20:45,205 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 78 selfloop transitions, 6 changer transitions 1/91 dead transitions. [2025-02-08 08:20:45,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 91 transitions, 434 flow [2025-02-08 08:20:45,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:20:45,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:20:45,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions. [2025-02-08 08:20:45,206 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6084905660377359 [2025-02-08 08:20:45,206 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 126 flow. Second operand 4 states and 129 transitions. [2025-02-08 08:20:45,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 91 transitions, 434 flow [2025-02-08 08:20:45,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 91 transitions, 423 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 08:20:45,365 INFO L231 Difference]: Finished difference. Result has 60 places, 47 transitions, 161 flow [2025-02-08 08:20:45,365 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=161, PETRI_PLACES=60, PETRI_TRANSITIONS=47} [2025-02-08 08:20:45,366 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2025-02-08 08:20:45,366 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 47 transitions, 161 flow [2025-02-08 08:20:45,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 08:20:45,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:45,367 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 08:20:45,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:20:45,367 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 08:20:45,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:45,367 INFO L85 PathProgramCache]: Analyzing trace with hash -661173181, now seen corresponding path program 1 times [2025-02-08 08:20:45,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:45,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707564046] [2025-02-08 08:20:45,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:45,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:45,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:20:45,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:20:45,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:45,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:45,727 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 08:20:45,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:45,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707564046] [2025-02-08 08:20:45,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707564046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:45,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:45,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:20:45,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478933296] [2025-02-08 08:20:45,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:45,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:20:45,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:45,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:20:45,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:20:45,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:20:45,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 161 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 08:20:45,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:45,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:20:45,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:50,348 INFO L124 PetriNetUnfolderBase]: 52473/72415 cut-off events. [2025-02-08 08:20:50,348 INFO L125 PetriNetUnfolderBase]: For 32170/32173 co-relation queries the response was YES. [2025-02-08 08:20:50,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179452 conditions, 72415 events. 52473/72415 cut-off events. For 32170/32173 co-relation queries the response was YES. Maximal size of possible extension queue 2272. Compared 469976 event pairs, 19393 based on Foata normal form. 1432/73827 useless extension candidates. Maximal degree in co-relation 179439. Up to 38601 conditions per place. [2025-02-08 08:20:50,788 INFO L140 encePairwiseOnDemand]: 44/53 looper letters, 68 selfloop transitions, 8 changer transitions 75/157 dead transitions. [2025-02-08 08:20:50,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 157 transitions, 794 flow [2025-02-08 08:20:50,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:20:50,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:20:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 219 transitions. [2025-02-08 08:20:50,790 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5902964959568733 [2025-02-08 08:20:50,790 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 161 flow. Second operand 7 states and 219 transitions. [2025-02-08 08:20:50,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 157 transitions, 794 flow [2025-02-08 08:20:50,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 157 transitions, 777 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 08:20:50,801 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 244 flow [2025-02-08 08:20:50,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=244, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2025-02-08 08:20:50,802 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 10 predicate places. [2025-02-08 08:20:50,802 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 244 flow [2025-02-08 08:20:50,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 08:20:50,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:50,802 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 08:20:50,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:20:50,802 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 08:20:50,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:50,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1455678203, now seen corresponding path program 1 times [2025-02-08 08:20:50,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:50,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900087411] [2025-02-08 08:20:50,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:50,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:20:50,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:20:50,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:50,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:50,943 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 08:20:50,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:50,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900087411] [2025-02-08 08:20:50,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900087411] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:50,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:50,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 08:20:50,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225863321] [2025-02-08 08:20:50,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:50,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:20:50,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:50,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:20:50,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:20:50,946 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-02-08 08:20:50,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:20:50,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:50,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-02-08 08:20:50,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:54,062 INFO L124 PetriNetUnfolderBase]: 32477/45659 cut-off events. [2025-02-08 08:20:54,062 INFO L125 PetriNetUnfolderBase]: For 66597/66603 co-relation queries the response was YES. [2025-02-08 08:20:54,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129662 conditions, 45659 events. 32477/45659 cut-off events. For 66597/66603 co-relation queries the response was YES. Maximal size of possible extension queue 1242. Compared 285639 event pairs, 3229 based on Foata normal form. 1768/47407 useless extension candidates. Maximal degree in co-relation 129643. Up to 18957 conditions per place. [2025-02-08 08:20:54,323 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 119 selfloop transitions, 10 changer transitions 1/136 dead transitions. [2025-02-08 08:20:54,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 136 transitions, 913 flow [2025-02-08 08:20:54,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:20:54,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:20:54,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2025-02-08 08:20:54,324 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6264150943396226 [2025-02-08 08:20:54,324 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 244 flow. Second operand 5 states and 166 transitions. [2025-02-08 08:20:54,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 136 transitions, 913 flow [2025-02-08 08:20:54,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 136 transitions, 857 flow, removed 2 selfloop flow, removed 4 redundant places. [2025-02-08 08:20:54,395 INFO L231 Difference]: Finished difference. Result has 68 places, 57 transitions, 285 flow [2025-02-08 08:20:54,395 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=285, PETRI_PLACES=68, PETRI_TRANSITIONS=57} [2025-02-08 08:20:54,395 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 8 predicate places. [2025-02-08 08:20:54,395 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 57 transitions, 285 flow [2025-02-08 08:20:54,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:20:54,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:54,396 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:20:54,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:20:54,396 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 08:20:54,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash 631217610, now seen corresponding path program 1 times [2025-02-08 08:20:54,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:54,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298022425] [2025-02-08 08:20:54,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:54,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:54,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 08:20:54,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 08:20:54,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:54,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:54,533 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 08:20:54,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:54,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298022425] [2025-02-08 08:20:54,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298022425] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:54,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:54,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:20:54,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230108470] [2025-02-08 08:20:54,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:54,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:20:54,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:54,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:20:54,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:20:54,535 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 53 [2025-02-08 08:20:54,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 08:20:54,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:54,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 53 [2025-02-08 08:20:54,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:56,248 INFO L124 PetriNetUnfolderBase]: 19557/27315 cut-off events. [2025-02-08 08:20:56,248 INFO L125 PetriNetUnfolderBase]: For 45505/45511 co-relation queries the response was YES. [2025-02-08 08:20:56,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82664 conditions, 27315 events. 19557/27315 cut-off events. For 45505/45511 co-relation queries the response was YES. Maximal size of possible extension queue 736. Compared 155930 event pairs, 2329 based on Foata normal form. 944/28239 useless extension candidates. Maximal degree in co-relation 82645. Up to 8360 conditions per place. [2025-02-08 08:20:56,399 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 139 selfloop transitions, 14 changer transitions 2/161 dead transitions. [2025-02-08 08:20:56,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 161 transitions, 1075 flow [2025-02-08 08:20:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:20:56,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:20:56,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2025-02-08 08:20:56,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6320754716981132 [2025-02-08 08:20:56,400 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 285 flow. Second operand 6 states and 201 transitions. [2025-02-08 08:20:56,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 161 transitions, 1075 flow [2025-02-08 08:20:56,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 161 transitions, 1045 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-08 08:20:56,597 INFO L231 Difference]: Finished difference. Result has 71 places, 61 transitions, 335 flow [2025-02-08 08:20:56,598 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=335, PETRI_PLACES=71, PETRI_TRANSITIONS=61} [2025-02-08 08:20:56,598 INFO L279 CegarLoopForPetriNet]: 60 programPoint places, 11 predicate places. [2025-02-08 08:20:56,598 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 61 transitions, 335 flow [2025-02-08 08:20:56,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 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 08:20:56,598 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:20:56,598 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] [2025-02-08 08:20:56,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:20:56,598 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2025-02-08 08:20:56,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:20:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1976569407, now seen corresponding path program 1 times [2025-02-08 08:20:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:20:56,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257636290] [2025-02-08 08:20:56,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:20:56,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:20:56,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-08 08:20:56,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-08 08:20:56,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:20:56,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:20:56,801 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 08:20:56,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:20:56,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257636290] [2025-02-08 08:20:56,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257636290] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:20:56,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:20:56,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:20:56,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907443428] [2025-02-08 08:20:56,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:20:56,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:20:56,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:20:56,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:20:56,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:20:56,806 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 53 [2025-02-08 08:20:56,806 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 61 transitions, 335 flow. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 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 08:20:56,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:20:56,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 53 [2025-02-08 08:20:56,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:20:59,768 INFO L124 PetriNetUnfolderBase]: 27041/37701 cut-off events. [2025-02-08 08:20:59,768 INFO L125 PetriNetUnfolderBase]: For 62971/62977 co-relation queries the response was YES. [2025-02-08 08:20:59,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116427 conditions, 37701 events. 27041/37701 cut-off events. For 62971/62977 co-relation queries the response was YES. Maximal size of possible extension queue 1009. Compared 222001 event pairs, 3179 based on Foata normal form. 152/37833 useless extension candidates. Maximal degree in co-relation 116407. Up to 13536 conditions per place. [2025-02-08 08:20:59,969 INFO L140 encePairwiseOnDemand]: 43/53 looper letters, 140 selfloop transitions, 16 changer transitions 71/233 dead transitions. [2025-02-08 08:20:59,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 233 transitions, 1727 flow [2025-02-08 08:20:59,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:20:59,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:20:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2025-02-08 08:20:59,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6132075471698113 [2025-02-08 08:20:59,971 INFO L175 Difference]: Start difference. First operand has 71 places, 61 transitions, 335 flow. Second operand 8 states and 260 transitions. [2025-02-08 08:20:59,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 233 transitions, 1727 flow