./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:39:04,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:39:04,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:39:04,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:39:04,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:39:04,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:39:04,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:39:04,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:39:04,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:39:04,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:39:04,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:39:04,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:39:04,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:39:04,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:39:04,168 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:39:04,168 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:39:04,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:39:04,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:39:04,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:39:04,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:39:04,169 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:39:04,169 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:39:04,169 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:39:04,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:39:04,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:39:04,170 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:39:04,170 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:39:04,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:39:04,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:39:04,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:39:04,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:39:04,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:39:04,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:39:04,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:39:04,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:39:04,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:39:04,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:39:04,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:39:04,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:39:04,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:39:04,173 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:39:04,173 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:39:04,173 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 [2024-10-11 19:39:04,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:39:04,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:39:04,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:39:04,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:39:04,429 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:39:04,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 19:39:05,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:39:05,895 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:39:05,895 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 19:39:05,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1ae718428/308561e8219348dc8091decf0a492e3c/FLAG8ab539f4d [2024-10-11 19:39:05,920 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1ae718428/308561e8219348dc8091decf0a492e3c [2024-10-11 19:39:05,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:39:05,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:39:05,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:39:05,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:39:05,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:39:05,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:39:05" (1/1) ... [2024-10-11 19:39:05,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f3e4397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:05, skipping insertion in model container [2024-10-11 19:39:05,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:39:05" (1/1) ... [2024-10-11 19:39:05,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:39:06,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:39:06,320 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:39:06,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:39:06,410 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:39:06,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06 WrapperNode [2024-10-11 19:39:06,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:39:06,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:39:06,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:39:06,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:39:06,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,459 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-10-11 19:39:06,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:39:06,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:39:06,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:39:06,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:39:06,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,472 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,484 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]. [2024-10-11 19:39:06,485 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,485 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:39:06,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:39:06,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:39:06,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:39:06,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (1/1) ... [2024-10-11 19:39:06,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:39:06,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:39:06,539 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:39:06,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:39:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:39:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:39:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:39:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:39:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:39:06,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:39:06,588 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:39:06,708 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:39:06,709 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:39:06,876 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:39:06,876 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:39:06,965 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:39:06,966 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:39:06,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:39:06 BoogieIcfgContainer [2024-10-11 19:39:06,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:39:06,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:39:06,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:39:06,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:39:06,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:39:05" (1/3) ... [2024-10-11 19:39:06,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a38bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:39:06, skipping insertion in model container [2024-10-11 19:39:06,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:39:06" (2/3) ... [2024-10-11 19:39:06,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a38bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:39:06, skipping insertion in model container [2024-10-11 19:39:06,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:39:06" (3/3) ... [2024-10-11 19:39:06,975 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-11 19:39:06,990 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:39:06,991 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-11 19:39:06,991 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:39:07,035 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:39:07,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 98 flow [2024-10-11 19:39:07,121 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2024-10-11 19:39:07,121 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:07,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 40 events. 2/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-10-11 19:39:07,125 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 43 transitions, 98 flow [2024-10-11 19:39:07,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 39 transitions, 87 flow [2024-10-11 19:39:07,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:39:07,159 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;@e8a7234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:39:07,159 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-11 19:39:07,170 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:39:07,170 INFO L124 PetriNetUnfolderBase]: 2/37 cut-off events. [2024-10-11 19:39:07,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:07,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:07,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:07,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:07,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:07,176 INFO L85 PathProgramCache]: Analyzing trace with hash 710438097, now seen corresponding path program 1 times [2024-10-11 19:39:07,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:07,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918196692] [2024-10-11 19:39:07,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:07,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:07,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:07,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:07,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918196692] [2024-10-11 19:39:07,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918196692] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:07,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:07,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:39:07,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504358256] [2024-10-11 19:39:07,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:07,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:39:07,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:39:07,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:39:07,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 43 [2024-10-11 19:39:07,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-11 19:39:07,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:07,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 43 [2024-10-11 19:39:07,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:07,545 INFO L124 PetriNetUnfolderBase]: 75/219 cut-off events. [2024-10-11 19:39:07,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:07,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 219 events. 75/219 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1153 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 363. Up to 136 conditions per place. [2024-10-11 19:39:07,551 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 12 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-10-11 19:39:07,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 35 transitions, 107 flow [2024-10-11 19:39:07,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:39:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:39:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-10-11 19:39:07,560 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-10-11 19:39:07,562 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 87 flow. Second operand 3 states and 89 transitions. [2024-10-11 19:39:07,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 35 transitions, 107 flow [2024-10-11 19:39:07,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-11 19:39:07,566 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-10-11 19:39:07,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-10-11 19:39:07,571 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -3 predicate places. [2024-10-11 19:39:07,571 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-10-11 19:39:07,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-10-11 19:39:07,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:07,572 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:07,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:39:07,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:07,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash 710439650, now seen corresponding path program 1 times [2024-10-11 19:39:07,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:07,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529562770] [2024-10-11 19:39:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:07,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:07,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:07,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529562770] [2024-10-11 19:39:07,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529562770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:07,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:07,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:39:07,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249871029] [2024-10-11 19:39:07,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:07,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:39:07,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:07,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:39:07,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:39:07,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:39:07,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:39:07,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:07,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:39:07,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:08,374 INFO L124 PetriNetUnfolderBase]: 1429/2714 cut-off events. [2024-10-11 19:39:08,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:39:08,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4972 conditions, 2714 events. 1429/2714 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 20149 event pairs, 322 based on Foata normal form. 0/2578 useless extension candidates. Maximal degree in co-relation 4966. Up to 814 conditions per place. [2024-10-11 19:39:08,395 INFO L140 encePairwiseOnDemand]: 33/43 looper letters, 29 selfloop transitions, 6 changer transitions 55/104 dead transitions. [2024-10-11 19:39:08,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 400 flow [2024-10-11 19:39:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:39:08,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:39:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 254 transitions. [2024-10-11 19:39:08,398 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6563307493540051 [2024-10-11 19:39:08,398 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 254 transitions. [2024-10-11 19:39:08,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 400 flow [2024-10-11 19:39:08,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 104 transitions, 399 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:39:08,402 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-10-11 19:39:08,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-10-11 19:39:08,405 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 11 predicate places. [2024-10-11 19:39:08,405 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-10-11 19:39:08,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:39:08,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:08,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:08,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:39:08,407 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:08,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:08,408 INFO L85 PathProgramCache]: Analyzing trace with hash 861097345, now seen corresponding path program 1 times [2024-10-11 19:39:08,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:08,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889273042] [2024-10-11 19:39:08,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:08,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:08,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:08,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889273042] [2024-10-11 19:39:08,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889273042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:08,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:08,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:08,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492948099] [2024-10-11 19:39:08,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:08,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:39:08,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:08,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:39:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:39:08,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:39:08,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-11 19:39:08,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:08,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:39:08,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:08,969 INFO L124 PetriNetUnfolderBase]: 948/1988 cut-off events. [2024-10-11 19:39:08,970 INFO L125 PetriNetUnfolderBase]: For 2985/2995 co-relation queries the response was YES. [2024-10-11 19:39:08,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5625 conditions, 1988 events. 948/1988 cut-off events. For 2985/2995 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 14411 event pairs, 172 based on Foata normal form. 65/2020 useless extension candidates. Maximal degree in co-relation 5610. Up to 572 conditions per place. [2024-10-11 19:39:08,981 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 36 selfloop transitions, 7 changer transitions 52/109 dead transitions. [2024-10-11 19:39:08,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 109 transitions, 759 flow [2024-10-11 19:39:08,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:39:08,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:39:08,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 265 transitions. [2024-10-11 19:39:08,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2024-10-11 19:39:08,983 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 265 transitions. [2024-10-11 19:39:08,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 109 transitions, 759 flow [2024-10-11 19:39:08,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 109 transitions, 657 flow, removed 27 selfloop flow, removed 4 redundant places. [2024-10-11 19:39:08,997 INFO L231 Difference]: Finished difference. Result has 65 places, 42 transitions, 213 flow [2024-10-11 19:39:08,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=213, PETRI_PLACES=65, PETRI_TRANSITIONS=42} [2024-10-11 19:39:08,998 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 18 predicate places. [2024-10-11 19:39:08,998 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 42 transitions, 213 flow [2024-10-11 19:39:08,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-11 19:39:08,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:08,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:08,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:39:08,999 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:08,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:09,000 INFO L85 PathProgramCache]: Analyzing trace with hash -655789445, now seen corresponding path program 1 times [2024-10-11 19:39:09,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:09,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372971946] [2024-10-11 19:39:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:09,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372971946] [2024-10-11 19:39:09,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372971946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:09,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:09,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:09,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904025134] [2024-10-11 19:39:09,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:09,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:39:09,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:09,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:39:09,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:39:09,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:39:09,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 42 transitions, 213 flow. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-11 19:39:09,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:09,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:39:09,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:09,449 INFO L124 PetriNetUnfolderBase]: 779/1600 cut-off events. [2024-10-11 19:39:09,450 INFO L125 PetriNetUnfolderBase]: For 4205/4211 co-relation queries the response was YES. [2024-10-11 19:39:09,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5029 conditions, 1600 events. 779/1600 cut-off events. For 4205/4211 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 10902 event pairs, 153 based on Foata normal form. 46/1606 useless extension candidates. Maximal degree in co-relation 5007. Up to 560 conditions per place. [2024-10-11 19:39:09,460 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 38 selfloop transitions, 11 changer transitions 40/103 dead transitions. [2024-10-11 19:39:09,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 103 transitions, 731 flow [2024-10-11 19:39:09,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:39:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:39:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2024-10-11 19:39:09,462 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6093023255813953 [2024-10-11 19:39:09,463 INFO L175 Difference]: Start difference. First operand has 65 places, 42 transitions, 213 flow. Second operand 10 states and 262 transitions. [2024-10-11 19:39:09,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 103 transitions, 731 flow [2024-10-11 19:39:09,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 103 transitions, 678 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-10-11 19:39:09,471 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 297 flow [2024-10-11 19:39:09,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=297, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2024-10-11 19:39:09,472 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2024-10-11 19:39:09,472 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 297 flow [2024-10-11 19:39:09,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 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) [2024-10-11 19:39:09,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:09,473 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:09,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:39:09,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:09,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:09,477 INFO L85 PathProgramCache]: Analyzing trace with hash 691510508, now seen corresponding path program 1 times [2024-10-11 19:39:09,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:09,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698329341] [2024-10-11 19:39:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:09,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:09,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:09,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698329341] [2024-10-11 19:39:09,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698329341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:09,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:09,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:09,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388553744] [2024-10-11 19:39:09,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:09,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:39:09,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:09,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:39:09,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:39:09,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:39:09,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:39:09,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:09,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:39:09,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:09,784 INFO L124 PetriNetUnfolderBase]: 506/1132 cut-off events. [2024-10-11 19:39:09,784 INFO L125 PetriNetUnfolderBase]: For 3159/3250 co-relation queries the response was YES. [2024-10-11 19:39:09,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3508 conditions, 1132 events. 506/1132 cut-off events. For 3159/3250 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7784 event pairs, 229 based on Foata normal form. 58/1119 useless extension candidates. Maximal degree in co-relation 3478. Up to 494 conditions per place. [2024-10-11 19:39:09,792 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 20 selfloop transitions, 6 changer transitions 17/69 dead transitions. [2024-10-11 19:39:09,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 69 transitions, 489 flow [2024-10-11 19:39:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:39:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:39:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2024-10-11 19:39:09,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6179401993355482 [2024-10-11 19:39:09,794 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 297 flow. Second operand 7 states and 186 transitions. [2024-10-11 19:39:09,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 69 transitions, 489 flow [2024-10-11 19:39:09,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 69 transitions, 435 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-10-11 19:39:09,801 INFO L231 Difference]: Finished difference. Result has 70 places, 46 transitions, 287 flow [2024-10-11 19:39:09,801 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=287, PETRI_PLACES=70, PETRI_TRANSITIONS=46} [2024-10-11 19:39:09,803 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-10-11 19:39:09,804 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 46 transitions, 287 flow [2024-10-11 19:39:09,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:39:09,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:09,804 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:09,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:39:09,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:09,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1582307728, now seen corresponding path program 1 times [2024-10-11 19:39:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:09,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963351391] [2024-10-11 19:39:09,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:09,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963351391] [2024-10-11 19:39:09,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963351391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:09,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:09,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:39:09,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148318915] [2024-10-11 19:39:09,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:09,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:39:09,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:09,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:39:09,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:39:09,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 43 [2024-10-11 19:39:09,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 46 transitions, 287 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 19:39:09,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:09,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 43 [2024-10-11 19:39:09,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:10,048 INFO L124 PetriNetUnfolderBase]: 323/795 cut-off events. [2024-10-11 19:39:10,049 INFO L125 PetriNetUnfolderBase]: For 1316/1368 co-relation queries the response was YES. [2024-10-11 19:39:10,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2324 conditions, 795 events. 323/795 cut-off events. For 1316/1368 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5189 event pairs, 129 based on Foata normal form. 24/760 useless extension candidates. Maximal degree in co-relation 2297. Up to 382 conditions per place. [2024-10-11 19:39:10,055 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 21 selfloop transitions, 5 changer transitions 15/69 dead transitions. [2024-10-11 19:39:10,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 451 flow [2024-10-11 19:39:10,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:39:10,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:39:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 194 transitions. [2024-10-11 19:39:10,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6445182724252492 [2024-10-11 19:39:10,057 INFO L175 Difference]: Start difference. First operand has 70 places, 46 transitions, 287 flow. Second operand 7 states and 194 transitions. [2024-10-11 19:39:10,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 451 flow [2024-10-11 19:39:10,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 415 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-10-11 19:39:10,061 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 284 flow [2024-10-11 19:39:10,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-10-11 19:39:10,063 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2024-10-11 19:39:10,064 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 284 flow [2024-10-11 19:39:10,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2024-10-11 19:39:10,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:10,064 INFO L204 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] [2024-10-11 19:39:10,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:39:10,064 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:10,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:10,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1702122293, now seen corresponding path program 1 times [2024-10-11 19:39:10,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:10,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894037358] [2024-10-11 19:39:10,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:10,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:10,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:10,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:10,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894037358] [2024-10-11 19:39:10,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894037358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:10,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:10,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:39:10,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277984656] [2024-10-11 19:39:10,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:10,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:39:10,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:10,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:39:10,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:39:10,235 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 43 [2024-10-11 19:39:10,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 284 flow. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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) [2024-10-11 19:39:10,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:10,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 43 [2024-10-11 19:39:10,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:10,488 INFO L124 PetriNetUnfolderBase]: 956/1943 cut-off events. [2024-10-11 19:39:10,488 INFO L125 PetriNetUnfolderBase]: For 4749/4769 co-relation queries the response was YES. [2024-10-11 19:39:10,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6051 conditions, 1943 events. 956/1943 cut-off events. For 4749/4769 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13599 event pairs, 238 based on Foata normal form. 34/1962 useless extension candidates. Maximal degree in co-relation 6026. Up to 479 conditions per place. [2024-10-11 19:39:10,499 INFO L140 encePairwiseOnDemand]: 34/43 looper letters, 41 selfloop transitions, 8 changer transitions 36/98 dead transitions. [2024-10-11 19:39:10,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 98 transitions, 772 flow [2024-10-11 19:39:10,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 19:39:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 19:39:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 221 transitions. [2024-10-11 19:39:10,501 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5710594315245479 [2024-10-11 19:39:10,501 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 284 flow. Second operand 9 states and 221 transitions. [2024-10-11 19:39:10,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 98 transitions, 772 flow [2024-10-11 19:39:10,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 98 transitions, 722 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-10-11 19:39:10,511 INFO L231 Difference]: Finished difference. Result has 73 places, 43 transitions, 287 flow [2024-10-11 19:39:10,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=287, PETRI_PLACES=73, PETRI_TRANSITIONS=43} [2024-10-11 19:39:10,511 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2024-10-11 19:39:10,512 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 43 transitions, 287 flow [2024-10-11 19:39:10,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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) [2024-10-11 19:39:10,512 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:10,513 INFO L204 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] [2024-10-11 19:39:10,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:39:10,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:10,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:10,513 INFO L85 PathProgramCache]: Analyzing trace with hash -648845063, now seen corresponding path program 1 times [2024-10-11 19:39:10,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:10,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826305524] [2024-10-11 19:39:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:10,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:10,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:10,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826305524] [2024-10-11 19:39:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826305524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:39:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010180568] [2024-10-11 19:39:10,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:10,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:39:10,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:10,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:39:10,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:39:10,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:39:10,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 43 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 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) [2024-10-11 19:39:10,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:10,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:39:10,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:10,738 INFO L124 PetriNetUnfolderBase]: 653/1282 cut-off events. [2024-10-11 19:39:10,738 INFO L125 PetriNetUnfolderBase]: For 1223/1257 co-relation queries the response was YES. [2024-10-11 19:39:10,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 1282 events. 653/1282 cut-off events. For 1223/1257 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8104 event pairs, 140 based on Foata normal form. 55/1288 useless extension candidates. Maximal degree in co-relation 2950. Up to 645 conditions per place. [2024-10-11 19:39:10,744 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 25 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-10-11 19:39:10,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 56 transitions, 375 flow [2024-10-11 19:39:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:39:10,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:39:10,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-10-11 19:39:10,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-10-11 19:39:10,745 INFO L175 Difference]: Start difference. First operand has 73 places, 43 transitions, 287 flow. Second operand 4 states and 116 transitions. [2024-10-11 19:39:10,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 56 transitions, 375 flow [2024-10-11 19:39:10,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 56 transitions, 327 flow, removed 13 selfloop flow, removed 11 redundant places. [2024-10-11 19:39:10,749 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 277 flow [2024-10-11 19:39:10,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-10-11 19:39:10,750 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 16 predicate places. [2024-10-11 19:39:10,750 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 277 flow [2024-10-11 19:39:10,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 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) [2024-10-11 19:39:10,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:10,751 INFO L204 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] [2024-10-11 19:39:10,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:39:10,751 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:10,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:10,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1889347666, now seen corresponding path program 1 times [2024-10-11 19:39:10,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:10,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332296368] [2024-10-11 19:39:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:10,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:10,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:10,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332296368] [2024-10-11 19:39:10,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332296368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:10,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:10,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:39:10,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223654947] [2024-10-11 19:39:10,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:10,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:39:10,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:10,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:39:10,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:39:10,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:39:10,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 277 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:39:10,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:10,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:39:10,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:10,973 INFO L124 PetriNetUnfolderBase]: 560/1103 cut-off events. [2024-10-11 19:39:10,973 INFO L125 PetriNetUnfolderBase]: For 693/899 co-relation queries the response was YES. [2024-10-11 19:39:10,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2792 conditions, 1103 events. 560/1103 cut-off events. For 693/899 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 6405 event pairs, 55 based on Foata normal form. 62/1122 useless extension candidates. Maximal degree in co-relation 2770. Up to 424 conditions per place. [2024-10-11 19:39:10,979 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/64 dead transitions. [2024-10-11 19:39:10,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 64 transitions, 404 flow [2024-10-11 19:39:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:39:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 19:39:10,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-10-11 19:39:10,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-10-11 19:39:10,980 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 277 flow. Second operand 5 states and 145 transitions. [2024-10-11 19:39:10,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 64 transitions, 404 flow [2024-10-11 19:39:10,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:39:10,982 INFO L231 Difference]: Finished difference. Result has 68 places, 51 transitions, 329 flow [2024-10-11 19:39:10,983 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=329, PETRI_PLACES=68, PETRI_TRANSITIONS=51} [2024-10-11 19:39:10,983 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 21 predicate places. [2024-10-11 19:39:10,984 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 51 transitions, 329 flow [2024-10-11 19:39:10,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 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) [2024-10-11 19:39:10,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:10,984 INFO L204 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] [2024-10-11 19:39:10,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:39:10,985 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:10,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:10,986 INFO L85 PathProgramCache]: Analyzing trace with hash 72488429, now seen corresponding path program 1 times [2024-10-11 19:39:10,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:10,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885307174] [2024-10-11 19:39:10,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:10,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:11,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:11,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:11,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885307174] [2024-10-11 19:39:11,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885307174] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:11,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:11,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:39:11,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820898353] [2024-10-11 19:39:11,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:11,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:39:11,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:39:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:39:11,103 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 43 [2024-10-11 19:39:11,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 51 transitions, 329 flow. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-10-11 19:39:11,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:11,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 43 [2024-10-11 19:39:11,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:11,260 INFO L124 PetriNetUnfolderBase]: 424/807 cut-off events. [2024-10-11 19:39:11,260 INFO L125 PetriNetUnfolderBase]: For 1283/1783 co-relation queries the response was YES. [2024-10-11 19:39:11,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2510 conditions, 807 events. 424/807 cut-off events. For 1283/1783 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4195 event pairs, 19 based on Foata normal form. 56/824 useless extension candidates. Maximal degree in co-relation 2485. Up to 264 conditions per place. [2024-10-11 19:39:11,264 INFO L140 encePairwiseOnDemand]: 37/43 looper letters, 26 selfloop transitions, 11 changer transitions 5/66 dead transitions. [2024-10-11 19:39:11,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 66 transitions, 446 flow [2024-10-11 19:39:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:39:11,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 19:39:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2024-10-11 19:39:11,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-10-11 19:39:11,266 INFO L175 Difference]: Start difference. First operand has 68 places, 51 transitions, 329 flow. Second operand 6 states and 168 transitions. [2024-10-11 19:39:11,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 66 transitions, 446 flow [2024-10-11 19:39:11,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 413 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-11 19:39:11,269 INFO L231 Difference]: Finished difference. Result has 70 places, 49 transitions, 318 flow [2024-10-11 19:39:11,269 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=70, PETRI_TRANSITIONS=49} [2024-10-11 19:39:11,269 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 23 predicate places. [2024-10-11 19:39:11,270 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 49 transitions, 318 flow [2024-10-11 19:39:11,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 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) [2024-10-11 19:39:11,270 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:11,270 INFO L204 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] [2024-10-11 19:39:11,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:39:11,270 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:11,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:11,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2011837552, now seen corresponding path program 1 times [2024-10-11 19:39:11,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:11,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944875785] [2024-10-11 19:39:11,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:11,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:11,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:11,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:11,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944875785] [2024-10-11 19:39:11,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944875785] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:11,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:11,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:39:11,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583145653] [2024-10-11 19:39:11,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:11,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:39:11,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:11,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:39:11,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:39:11,396 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:39:11,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 49 transitions, 318 flow. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2024-10-11 19:39:11,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:11,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:39:11,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:11,561 INFO L124 PetriNetUnfolderBase]: 626/1373 cut-off events. [2024-10-11 19:39:11,561 INFO L125 PetriNetUnfolderBase]: For 3544/3714 co-relation queries the response was YES. [2024-10-11 19:39:11,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4454 conditions, 1373 events. 626/1373 cut-off events. For 3544/3714 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 9504 event pairs, 275 based on Foata normal form. 24/1255 useless extension candidates. Maximal degree in co-relation 4430. Up to 417 conditions per place. [2024-10-11 19:39:11,568 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 21 selfloop transitions, 5 changer transitions 30/77 dead transitions. [2024-10-11 19:39:11,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 77 transitions, 550 flow [2024-10-11 19:39:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:39:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:39:11,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-10-11 19:39:11,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.584717607973422 [2024-10-11 19:39:11,570 INFO L175 Difference]: Start difference. First operand has 70 places, 49 transitions, 318 flow. Second operand 7 states and 176 transitions. [2024-10-11 19:39:11,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 77 transitions, 550 flow [2024-10-11 19:39:11,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 77 transitions, 479 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-10-11 19:39:11,578 INFO L231 Difference]: Finished difference. Result has 71 places, 40 transitions, 205 flow [2024-10-11 19:39:11,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=205, PETRI_PLACES=71, PETRI_TRANSITIONS=40} [2024-10-11 19:39:11,579 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 24 predicate places. [2024-10-11 19:39:11,579 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 40 transitions, 205 flow [2024-10-11 19:39:11,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2024-10-11 19:39:11,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:39:11,579 INFO L204 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] [2024-10-11 19:39:11,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 19:39:11,579 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-11 19:39:11,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:39:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash -578159784, now seen corresponding path program 2 times [2024-10-11 19:39:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:39:11,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794849293] [2024-10-11 19:39:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:39:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:39:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:39:11,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:39:11,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:39:11,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794849293] [2024-10-11 19:39:11,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794849293] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:39:11,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:39:11,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 19:39:11,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590594268] [2024-10-11 19:39:11,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:39:11,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:39:11,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:39:11,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:39:11,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:39:11,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 43 [2024-10-11 19:39:11,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 40 transitions, 205 flow. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2024-10-11 19:39:11,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:39:11,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 43 [2024-10-11 19:39:11,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:39:11,782 INFO L124 PetriNetUnfolderBase]: 121/281 cut-off events. [2024-10-11 19:39:11,782 INFO L125 PetriNetUnfolderBase]: For 419/424 co-relation queries the response was YES. [2024-10-11 19:39:11,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 281 events. 121/281 cut-off events. For 419/424 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1139 event pairs, 14 based on Foata normal form. 9/270 useless extension candidates. Maximal degree in co-relation 783. Up to 103 conditions per place. [2024-10-11 19:39:11,783 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-10-11 19:39:11,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 50 transitions, 287 flow [2024-10-11 19:39:11,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:39:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:39:11,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-10-11 19:39:11,784 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5116279069767442 [2024-10-11 19:39:11,784 INFO L175 Difference]: Start difference. First operand has 71 places, 40 transitions, 205 flow. Second operand 8 states and 176 transitions. [2024-10-11 19:39:11,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 50 transitions, 287 flow [2024-10-11 19:39:11,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 216 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-10-11 19:39:11,785 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-10-11 19:39:11,786 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-10-11 19:39:11,786 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2024-10-11 19:39:11,786 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-10-11 19:39:11,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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) [2024-10-11 19:39:11,788 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-11 19:39:11,789 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-11 19:39:11,789 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-11 19:39:11,789 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-11 19:39:11,789 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-11 19:39:11,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 19:39:11,789 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:39:11,793 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-11 19:39:11,794 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 19:39:11,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 07:39:11 BasicIcfg [2024-10-11 19:39:11,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 19:39:11,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 19:39:11,801 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 19:39:11,801 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 19:39:11,801 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:39:06" (3/4) ... [2024-10-11 19:39:11,803 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 19:39:11,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-11 19:39:11,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-11 19:39:11,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-11 19:39:11,809 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-11 19:39:11,810 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-11 19:39:11,810 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 19:39:11,810 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 19:39:11,874 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 19:39:11,874 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 19:39:11,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 19:39:11,874 INFO L158 Benchmark]: Toolchain (without parser) took 5951.37ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 117.8MB in the beginning and 143.9MB in the end (delta: -26.1MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2024-10-11 19:39:11,875 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:39:11,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.05ms. Allocated memory is still 159.4MB. Free memory was 117.3MB in the beginning and 95.5MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:39:11,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.84ms. Allocated memory is still 159.4MB. Free memory was 94.7MB in the beginning and 93.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:39:11,875 INFO L158 Benchmark]: Boogie Preprocessor took 38.73ms. Allocated memory is still 159.4MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 19:39:11,875 INFO L158 Benchmark]: RCFGBuilder took 466.26ms. Allocated memory is still 159.4MB. Free memory was 90.5MB in the beginning and 71.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-11 19:39:11,875 INFO L158 Benchmark]: TraceAbstraction took 4831.26ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 70.4MB in the beginning and 149.1MB in the end (delta: -78.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:39:11,876 INFO L158 Benchmark]: Witness Printer took 73.30ms. Allocated memory is still 234.9MB. Free memory was 149.1MB in the beginning and 143.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 19:39:11,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 86.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.05ms. Allocated memory is still 159.4MB. Free memory was 117.3MB in the beginning and 95.5MB in the end (delta: 21.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.84ms. Allocated memory is still 159.4MB. Free memory was 94.7MB in the beginning and 93.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.73ms. Allocated memory is still 159.4MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.26ms. Allocated memory is still 159.4MB. Free memory was 90.5MB in the beginning and 71.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4831.26ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 70.4MB in the beginning and 149.1MB in the end (delta: -78.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.30ms. Allocated memory is still 234.9MB. Free memory was 149.1MB in the beginning and 143.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 505 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 452 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1059 IncrementalHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 72 mSDtfsCounter, 1059 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=9, InterpolantAutomatonStates: 85, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 1232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 19:39:11,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE