./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 a42fdc99fbc54512a7829bd297e0f02fe251a511098f304812399f6e9de1d8b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:17:36,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:17:36,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:17:36,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:17:36,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:17:36,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:17:36,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:17:36,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:17:36,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:17:36,175 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:17:36,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:17:36,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:17:36,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:17:36,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:17:36,183 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:17:36,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:17:36,184 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:17:36,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:17:36,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:17:36,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:17:36,184 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:17:36,185 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:17:36,185 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:17:36,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:17:36,186 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:17:36,188 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:17:36,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:17:36,188 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:17:36,189 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:17:36,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:17:36,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:17:36,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:17:36,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:17:36,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:17:36,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:17:36,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:17:36,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:17:36,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:17:36,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:17:36,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:17:36,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:17:36,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:17:36,194 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a42fdc99fbc54512a7829bd297e0f02fe251a511098f304812399f6e9de1d8b6 [2024-10-24 19:17:36,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:17:36,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:17:36,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:17:36,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:17:36,477 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:17:36,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2024-10-24 19:17:37,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:17:38,128 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:17:38,129 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2024-10-24 19:17:38,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8488f91/613cd122b5f64040b1f9a20d14a2b3af/FLAG5b1a863d8 [2024-10-24 19:17:38,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8488f91/613cd122b5f64040b1f9a20d14a2b3af [2024-10-24 19:17:38,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:17:38,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:17:38,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:17:38,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:17:38,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:17:38,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664030b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38, skipping insertion in model container [2024-10-24 19:17:38,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:17:38,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:17:38,511 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:17:38,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:17:38,593 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:17:38,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38 WrapperNode [2024-10-24 19:17:38,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:17:38,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:17:38,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:17:38,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:17:38,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,650 INFO L138 Inliner]: procedures = 22, calls = 157, calls flagged for inlining = 29, calls inlined = 29, statements flattened = 390 [2024-10-24 19:17:38,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:17:38,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:17:38,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:17:38,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:17:38,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,688 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]. [2024-10-24 19:17:38,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:17:38,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:17:38,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:17:38,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:17:38,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (1/1) ... [2024-10-24 19:17:38,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:17:38,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:17:38,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 19:17:38,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 19:17:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:17:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-24 19:17:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-24 19:17:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-24 19:17:38,808 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-24 19:17:38,808 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-24 19:17:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-24 19:17:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-24 19:17:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-24 19:17:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:17:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:17:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:17:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:17:38,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:17:38,813 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:17:38,929 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:17:38,932 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:17:39,442 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:17:39,443 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:17:39,795 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:17:39,795 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:17:39,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:17:39 BoogieIcfgContainer [2024-10-24 19:17:39,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:17:39,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:17:39,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:17:39,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:17:39,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:17:38" (1/3) ... [2024-10-24 19:17:39,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b87dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:17:39, skipping insertion in model container [2024-10-24 19:17:39,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:17:38" (2/3) ... [2024-10-24 19:17:39,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b87dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:17:39, skipping insertion in model container [2024-10-24 19:17:39,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:17:39" (3/3) ... [2024-10-24 19:17:39,807 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2024-10-24 19:17:39,824 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:17:39,825 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:17:39,825 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:17:39,879 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 19:17:39,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 90 transitions, 208 flow [2024-10-24 19:17:39,972 INFO L124 PetriNetUnfolderBase]: 0/86 cut-off events. [2024-10-24 19:17:39,972 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 19:17:39,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 86 events. 0/86 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 210 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-24 19:17:39,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 90 transitions, 208 flow [2024-10-24 19:17:39,978 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 85 transitions, 194 flow [2024-10-24 19:17:39,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:17:39,992 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;@5a89f26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:17:39,993 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:17:40,028 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:17:40,029 INFO L124 PetriNetUnfolderBase]: 0/82 cut-off events. [2024-10-24 19:17:40,029 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-24 19:17:40,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:40,030 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:40,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:17:40,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:40,035 INFO L85 PathProgramCache]: Analyzing trace with hash 824714501, now seen corresponding path program 1 times [2024-10-24 19:17:40,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:40,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907623590] [2024-10-24 19:17:40,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:40,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:41,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907623590] [2024-10-24 19:17:41,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907623590] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:41,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:41,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 19:17:41,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146441401] [2024-10-24 19:17:41,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:41,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 19:17:41,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:41,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 19:17:41,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-24 19:17:41,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 90 [2024-10-24 19:17:41,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 85 transitions, 194 flow. Second operand has 11 states, 11 states have (on average 38.90909090909091) internal successors, (428), 11 states have internal predecessors, (428), 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) [2024-10-24 19:17:41,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:41,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 90 [2024-10-24 19:17:41,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:17:55,745 INFO L124 PetriNetUnfolderBase]: 125690/181291 cut-off events. [2024-10-24 19:17:55,746 INFO L125 PetriNetUnfolderBase]: For 6198/6198 co-relation queries the response was YES. [2024-10-24 19:17:56,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355111 conditions, 181291 events. 125690/181291 cut-off events. For 6198/6198 co-relation queries the response was YES. Maximal size of possible extension queue 4912. Compared 1448683 event pairs, 44888 based on Foata normal form. 8/180796 useless extension candidates. Maximal degree in co-relation 336036. Up to 64438 conditions per place. [2024-10-24 19:17:56,682 INFO L140 encePairwiseOnDemand]: 79/90 looper letters, 294 selfloop transitions, 25 changer transitions 22/370 dead transitions. [2024-10-24 19:17:56,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 370 transitions, 1548 flow [2024-10-24 19:17:56,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 19:17:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-24 19:17:56,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 825 transitions. [2024-10-24 19:17:56,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-10-24 19:17:56,698 INFO L175 Difference]: Start difference. First operand has 98 places, 85 transitions, 194 flow. Second operand 14 states and 825 transitions. [2024-10-24 19:17:56,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 370 transitions, 1548 flow [2024-10-24 19:17:57,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 370 transitions, 1464 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-24 19:17:57,378 INFO L231 Difference]: Finished difference. Result has 106 places, 112 transitions, 329 flow [2024-10-24 19:17:57,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=329, PETRI_PLACES=106, PETRI_TRANSITIONS=112} [2024-10-24 19:17:57,387 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 8 predicate places. [2024-10-24 19:17:57,387 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 329 flow [2024-10-24 19:17:57,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 38.90909090909091) internal successors, (428), 11 states have internal predecessors, (428), 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) [2024-10-24 19:17:57,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:17:57,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:17:57,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:17:57,389 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:17:57,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:17:57,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1983229987, now seen corresponding path program 2 times [2024-10-24 19:17:57,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:17:57,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967313513] [2024-10-24 19:17:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:17:57,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:17:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:17:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:17:58,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:17:58,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967313513] [2024-10-24 19:17:58,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967313513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:17:58,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:17:58,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 19:17:58,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058317757] [2024-10-24 19:17:58,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:17:58,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 19:17:58,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:17:58,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 19:17:58,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 19:17:58,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 90 [2024-10-24 19:17:58,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 112 transitions, 329 flow. Second operand has 9 states, 9 states have (on average 37.55555555555556) internal successors, (338), 9 states have internal predecessors, (338), 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) [2024-10-24 19:17:58,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:17:58,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 90 [2024-10-24 19:17:58,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:17,397 INFO L124 PetriNetUnfolderBase]: 201457/291479 cut-off events. [2024-10-24 19:18:17,398 INFO L125 PetriNetUnfolderBase]: For 1675/1675 co-relation queries the response was YES. [2024-10-24 19:18:18,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 582839 conditions, 291479 events. 201457/291479 cut-off events. For 1675/1675 co-relation queries the response was YES. Maximal size of possible extension queue 5587. Compared 2403117 event pairs, 83001 based on Foata normal form. 2982/288220 useless extension candidates. Maximal degree in co-relation 582803. Up to 231752 conditions per place. [2024-10-24 19:18:19,156 INFO L140 encePairwiseOnDemand]: 76/90 looper letters, 195 selfloop transitions, 36 changer transitions 0/286 dead transitions. [2024-10-24 19:18:19,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 286 transitions, 1150 flow [2024-10-24 19:18:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:18:19,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:18:19,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 512 transitions. [2024-10-24 19:18:19,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6320987654320988 [2024-10-24 19:18:19,159 INFO L175 Difference]: Start difference. First operand has 106 places, 112 transitions, 329 flow. Second operand 9 states and 512 transitions. [2024-10-24 19:18:19,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 286 transitions, 1150 flow [2024-10-24 19:18:19,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 286 transitions, 1148 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-24 19:18:19,251 INFO L231 Difference]: Finished difference. Result has 117 places, 150 transitions, 568 flow [2024-10-24 19:18:19,252 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=90, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=568, PETRI_PLACES=117, PETRI_TRANSITIONS=150} [2024-10-24 19:18:19,253 INFO L277 CegarLoopForPetriNet]: 98 programPoint places, 19 predicate places. [2024-10-24 19:18:19,253 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 150 transitions, 568 flow [2024-10-24 19:18:19,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 37.55555555555556) internal successors, (338), 9 states have internal predecessors, (338), 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) [2024-10-24 19:18:19,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:18:19,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:18:19,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:18:19,254 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:18:19,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:18:19,255 INFO L85 PathProgramCache]: Analyzing trace with hash -267321881, now seen corresponding path program 3 times [2024-10-24 19:18:19,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:18:19,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573788985] [2024-10-24 19:18:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:18:19,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:18:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:18:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:18:19,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:18:19,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573788985] [2024-10-24 19:18:19,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573788985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:18:19,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:18:19,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:18:19,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174771684] [2024-10-24 19:18:19,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:18:19,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:18:19,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:18:19,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:18:19,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:18:19,427 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 90 [2024-10-24 19:18:19,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 150 transitions, 568 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2024-10-24 19:18:19,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:18:19,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 90 [2024-10-24 19:18:19,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:18:22,665 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([927] L209-->L212: Formula: (= (+ 1 v_~n4~0_135) v_~n4~0_134) InVars {~n4~0=v_~n4~0_135} OutVars{~n4~0=v_~n4~0_134, thread4Thread1of1ForFork1_#t~post4#1=|v_thread4Thread1of1ForFork1_#t~post4#1_1|} AuxVars[] AssignedVars[~n4~0, thread4Thread1of1ForFork1_#t~post4#1][98], [Black: 145#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), Black: 152#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 144#(and (<= ~n2~0 0) (= ~n1~0 0) (<= ~n3~0 0) (<= ~n4~0 0)), 26#L88true, 44#L212true, Black: 130#(and (= ~i4~0 0) (= 3 ~i~0) (= ~i3~0 1) (= 2 ~i2~0)), Black: 120#(and (= ~i4~0 0) (= ~i~0 1)), Black: 124#(and (= 2 ~i~0) (= ~i4~0 0) (= ~i3~0 1)), Black: 108#(= ~i~0 0), 10#L118true, 38#$Ultimate##0true, 106#true, 61#L273-4true, Black: 146#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), 163#true, 142#true, Black: 154#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 156#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= ~n1~0 ~n2~0))]) [2024-10-24 19:18:22,666 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2024-10-24 19:18:22,666 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2024-10-24 19:18:22,666 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2024-10-24 19:18:22,666 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2024-10-24 19:18:22,959 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([927] L209-->L212: Formula: (= (+ 1 v_~n4~0_135) v_~n4~0_134) InVars {~n4~0=v_~n4~0_135} OutVars{~n4~0=v_~n4~0_134, thread4Thread1of1ForFork1_#t~post4#1=|v_thread4Thread1of1ForFork1_#t~post4#1_1|} AuxVars[] AssignedVars[~n4~0, thread4Thread1of1ForFork1_#t~post4#1][98], [Black: 145#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), Black: 152#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 144#(and (<= ~n2~0 0) (= ~n1~0 0) (<= ~n3~0 0) (<= ~n4~0 0)), 26#L88true, 44#L212true, 29#L274true, Black: 130#(and (= ~i4~0 0) (= 3 ~i~0) (= ~i3~0 1) (= 2 ~i2~0)), Black: 120#(and (= ~i4~0 0) (= ~i~0 1)), Black: 124#(and (= 2 ~i~0) (= ~i4~0 0) (= ~i3~0 1)), Black: 108#(= ~i~0 0), 10#L118true, 38#$Ultimate##0true, 106#true, Black: 146#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), Black: 154#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), 142#true, 163#true, Black: 156#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= ~n1~0 ~n2~0))]) [2024-10-24 19:18:22,959 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,959 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,960 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,960 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,962 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([927] L209-->L212: Formula: (= (+ 1 v_~n4~0_135) v_~n4~0_134) InVars {~n4~0=v_~n4~0_135} OutVars{~n4~0=v_~n4~0_134, thread4Thread1of1ForFork1_#t~post4#1=|v_thread4Thread1of1ForFork1_#t~post4#1_1|} AuxVars[] AssignedVars[~n4~0, thread4Thread1of1ForFork1_#t~post4#1][98], [Black: 145#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), Black: 152#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 144#(and (<= ~n2~0 0) (= ~n1~0 0) (<= ~n3~0 0) (<= ~n4~0 0)), 26#L88true, 44#L212true, Black: 130#(and (= ~i4~0 0) (= 3 ~i~0) (= ~i3~0 1) (= 2 ~i2~0)), Black: 120#(and (= ~i4~0 0) (= ~i~0 1)), Black: 124#(and (= 2 ~i~0) (= ~i4~0 0) (= ~i3~0 1)), Black: 108#(= ~i~0 0), 38#$Ultimate##0true, 106#true, 61#L273-4true, Black: 146#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), 68#L121true, Black: 154#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), 142#true, 163#true, Black: 156#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= ~n1~0 ~n2~0))]) [2024-10-24 19:18:22,962 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,962 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,962 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-10-24 19:18:22,962 INFO L297 olderBase$Statistics]: existing Event has 40 ancestors and is cut-off event [2024-10-24 19:18:23,248 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([927] L209-->L212: Formula: (= (+ 1 v_~n4~0_135) v_~n4~0_134) InVars {~n4~0=v_~n4~0_135} OutVars{~n4~0=v_~n4~0_134, thread4Thread1of1ForFork1_#t~post4#1=|v_thread4Thread1of1ForFork1_#t~post4#1_1|} AuxVars[] AssignedVars[~n4~0, thread4Thread1of1ForFork1_#t~post4#1][98], [Black: 145#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), Black: 152#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 144#(and (<= ~n2~0 0) (= ~n1~0 0) (<= ~n3~0 0) (<= ~n4~0 0)), 26#L88true, 44#L212true, 29#L274true, Black: 130#(and (= ~i4~0 0) (= 3 ~i~0) (= ~i3~0 1) (= 2 ~i2~0)), Black: 120#(and (= ~i4~0 0) (= ~i~0 1)), Black: 124#(and (= 2 ~i~0) (= ~i4~0 0) (= ~i3~0 1)), Black: 108#(= ~i~0 0), 38#$Ultimate##0true, 106#true, Black: 146#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), 68#L121true, Black: 154#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), 142#true, 163#true, Black: 156#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= ~n1~0 ~n2~0))]) [2024-10-24 19:18:23,249 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2024-10-24 19:18:23,249 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2024-10-24 19:18:23,249 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2024-10-24 19:18:23,249 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2024-10-24 19:18:23,336 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([910] L157-->L160: Formula: (= (+ v_~n3~0_35 1) v_~n3~0_34) InVars {~n3~0=v_~n3~0_35} OutVars{~n3~0=v_~n3~0_34, thread3Thread1of1ForFork3_#t~post3#1=|v_thread3Thread1of1ForFork3_#t~post3#1_1|} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_#t~post3#1, ~n3~0][84], [Black: 145#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0) (<= (+ ~n2~0 1) ~n1~0)), Black: 152#(and (<= 1 ~n1~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 144#(and (<= ~n2~0 0) (= ~n1~0 0) (<= ~n3~0 0) (<= ~n4~0 0)), Black: 130#(and (= ~i4~0 0) (= 3 ~i~0) (= ~i3~0 1) (= 2 ~i2~0)), Black: 120#(and (= ~i4~0 0) (= ~i~0 1)), Black: 124#(and (= 2 ~i~0) (= ~i4~0 0) (= ~i3~0 1)), Black: 108#(= ~i~0 0), 25#L160true, 106#true, 4#L206true, 61#L273-4true, 49#L111true, 11#thread1EXITtrue, Black: 146#(and (<= 1 ~n1~0) (= ~n2~0 ~n1~0) (<= (+ ~n4~0 1) ~n1~0) (<= (+ ~n3~0 1) ~n1~0)), 163#true, 142#true, Black: 154#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= (+ ~n4~0 1) ~n2~0) (<= ~n1~0 ~n2~0)), Black: 156#(and (<= 1 ~n1~0) (<= 2 ~n2~0) (<= ~n1~0 ~n2~0))]) [2024-10-24 19:18:23,337 INFO L294 olderBase$Statistics]: this new event has 42 ancestors and is cut-off event [2024-10-24 19:18:23,337 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event [2024-10-24 19:18:23,337 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event [2024-10-24 19:18:23,337 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event