./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:44:07,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:44:07,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:44:07,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:44:07,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:44:07,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:44:07,599 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:44:07,600 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:44:07,600 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:44:07,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:44:07,601 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:44:07,601 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:44:07,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:44:07,602 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:44:07,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:44:07,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:44:07,602 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:44:07,603 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:44:07,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:44:07,603 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:44:07,603 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:44:07,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:44:07,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:44:07,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:44:07,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:44:07,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:44:07,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:44:07,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:44:07,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:44:07,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:44:07,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:44:07,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:44:07,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:44:07,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:44:07,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:44:07,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:44:07,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:44:07,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:44:07,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:44:07,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:44:07,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:44:07,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:44:07,611 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11bff6cd42e59c1eface46e47cb7e4e4f51a04703472e58b1bb7c25b58842408 [2024-11-09 02:44:07,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:44:07,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:44:07,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:44:07,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:44:07,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:44:07,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-09 02:44:09,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:44:09,254 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:44:09,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2024-11-09 02:44:09,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0abac5d/6b23a5c1ced1445dab1692c55aa81c1f/FLAG38162f890 [2024-11-09 02:44:09,658 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d0abac5d/6b23a5c1ced1445dab1692c55aa81c1f [2024-11-09 02:44:09,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:44:09,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:44:09,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:44:09,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:44:09,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:44:09,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c66ef17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09, skipping insertion in model container [2024-11-09 02:44:09,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:44:09,836 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[2331,2344] [2024-11-09 02:44:09,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:44:09,846 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:44:09,860 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[2331,2344] [2024-11-09 02:44:09,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:44:09,874 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:44:09,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09 WrapperNode [2024-11-09 02:44:09,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:44:09,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:44:09,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:44:09,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:44:09,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,903 INFO L138 Inliner]: procedures = 19, calls = 14, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 140 [2024-11-09 02:44:09,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:44:09,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:44:09,906 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:44:09,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:44:09,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,935 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]. [2024-11-09 02:44:09,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:44:09,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:44:09,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:44:09,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:44:09,962 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (1/1) ... [2024-11-09 02:44:09,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:44:09,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:44:09,992 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) [2024-11-09 02:44:09,996 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 [2024-11-09 02:44:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:44:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 02:44:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 02:44:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 02:44:10,034 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 02:44:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 02:44:10,035 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 02:44:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:44:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:44:10,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:44:10,038 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:44:10,182 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:44:10,188 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:44:10,353 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:44:10,353 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:44:10,484 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:44:10,484 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:44:10,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:44:10 BoogieIcfgContainer [2024-11-09 02:44:10,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:44:10,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:44:10,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:44:10,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:44:10,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:44:09" (1/3) ... [2024-11-09 02:44:10,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67943c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:44:10, skipping insertion in model container [2024-11-09 02:44:10,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:44:09" (2/3) ... [2024-11-09 02:44:10,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67943c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:44:10, skipping insertion in model container [2024-11-09 02:44:10,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:44:10" (3/3) ... [2024-11-09 02:44:10,493 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-11-09 02:44:10,505 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:44:10,506 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:44:10,506 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:44:10,544 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 02:44:10,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 47 transitions, 115 flow [2024-11-09 02:44:10,611 INFO L124 PetriNetUnfolderBase]: 2/44 cut-off events. [2024-11-09 02:44:10,612 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:44:10,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 2/44 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-11-09 02:44:10,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 47 transitions, 115 flow [2024-11-09 02:44:10,619 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 43 transitions, 104 flow [2024-11-09 02:44:10,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:44:10,635 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=LoopHeads, 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;@f521543, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:44:10,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 02:44:10,647 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:44:10,647 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-09 02:44:10,648 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:44:10,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:10,649 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] [2024-11-09 02:44:10,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:10,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:10,654 INFO L85 PathProgramCache]: Analyzing trace with hash 177276219, now seen corresponding path program 1 times [2024-11-09 02:44:10,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:10,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898917195] [2024-11-09 02:44:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:10,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:10,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:10,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898917195] [2024-11-09 02:44:10,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898917195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:10,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:10,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:44:10,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862384567] [2024-11-09 02:44:10,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:10,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:44:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:11,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:44:11,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:44:11,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 47 [2024-11-09 02:44:11,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-09 02:44:11,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:11,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 47 [2024-11-09 02:44:11,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:11,299 INFO L124 PetriNetUnfolderBase]: 1388/2193 cut-off events. [2024-11-09 02:44:11,300 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-09 02:44:11,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4425 conditions, 2193 events. 1388/2193 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 11565 event pairs, 608 based on Foata normal form. 1/2086 useless extension candidates. Maximal degree in co-relation 3985. Up to 1117 conditions per place. [2024-11-09 02:44:11,317 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 44 selfloop transitions, 5 changer transitions 1/63 dead transitions. [2024-11-09 02:44:11,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 256 flow [2024-11-09 02:44:11,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:44:11,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:44:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-09 02:44:11,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7021276595744681 [2024-11-09 02:44:11,329 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 104 flow. Second operand 3 states and 99 transitions. [2024-11-09 02:44:11,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 256 flow [2024-11-09 02:44:11,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 236 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-09 02:44:11,341 INFO L231 Difference]: Finished difference. Result has 48 places, 45 transitions, 117 flow [2024-11-09 02:44:11,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=48, PETRI_TRANSITIONS=45} [2024-11-09 02:44:11,346 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, -3 predicate places. [2024-11-09 02:44:11,346 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 45 transitions, 117 flow [2024-11-09 02:44:11,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-09 02:44:11,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:11,347 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] [2024-11-09 02:44:11,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:44:11,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:11,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:11,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1059488094, now seen corresponding path program 1 times [2024-11-09 02:44:11,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:11,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600829073] [2024-11-09 02:44:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:11,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:11,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:11,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600829073] [2024-11-09 02:44:11,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600829073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:11,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:11,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:44:11,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380080126] [2024-11-09 02:44:11,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:11,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:44:11,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:11,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:44:11,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:44:11,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 47 [2024-11-09 02:44:11,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-09 02:44:11,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:11,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 47 [2024-11-09 02:44:11,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:11,679 INFO L124 PetriNetUnfolderBase]: 2053/3190 cut-off events. [2024-11-09 02:44:11,681 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-09 02:44:11,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6469 conditions, 3190 events. 2053/3190 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 16553 event pairs, 1611 based on Foata normal form. 0/3146 useless extension candidates. Maximal degree in co-relation 4806. Up to 2732 conditions per place. [2024-11-09 02:44:11,694 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 43 selfloop transitions, 7 changer transitions 0/61 dead transitions. [2024-11-09 02:44:11,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 61 transitions, 251 flow [2024-11-09 02:44:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:44:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:44:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-09 02:44:11,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.624113475177305 [2024-11-09 02:44:11,697 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 117 flow. Second operand 3 states and 88 transitions. [2024-11-09 02:44:11,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 61 transitions, 251 flow [2024-11-09 02:44:11,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 61 transitions, 246 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 02:44:11,699 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 156 flow [2024-11-09 02:44:11,700 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2024-11-09 02:44:11,700 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-11-09 02:44:11,701 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 156 flow [2024-11-09 02:44:11,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-09 02:44:11,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:11,701 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] [2024-11-09 02:44:11,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:44:11,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:11,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:11,703 INFO L85 PathProgramCache]: Analyzing trace with hash 708667368, now seen corresponding path program 1 times [2024-11-09 02:44:11,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:11,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373657260] [2024-11-09 02:44:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:11,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:11,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:11,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373657260] [2024-11-09 02:44:11,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373657260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:11,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:11,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:44:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299311599] [2024-11-09 02:44:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:11,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:44:11,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:11,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:44:11,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:44:11,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 02:44:11,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 156 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-09 02:44:11,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:11,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 02:44:11,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:12,133 INFO L124 PetriNetUnfolderBase]: 2102/3781 cut-off events. [2024-11-09 02:44:12,133 INFO L125 PetriNetUnfolderBase]: For 228/234 co-relation queries the response was YES. [2024-11-09 02:44:12,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7815 conditions, 3781 events. 2102/3781 cut-off events. For 228/234 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 25407 event pairs, 685 based on Foata normal form. 38/3753 useless extension candidates. Maximal degree in co-relation 5960. Up to 1318 conditions per place. [2024-11-09 02:44:12,148 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 56 selfloop transitions, 15 changer transitions 7/97 dead transitions. [2024-11-09 02:44:12,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 97 transitions, 420 flow [2024-11-09 02:44:12,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:44:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:44:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-11-09 02:44:12,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6978723404255319 [2024-11-09 02:44:12,150 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 156 flow. Second operand 5 states and 164 transitions. [2024-11-09 02:44:12,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 97 transitions, 420 flow [2024-11-09 02:44:12,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 97 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:44:12,158 INFO L231 Difference]: Finished difference. Result has 55 places, 60 transitions, 227 flow [2024-11-09 02:44:12,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=55, PETRI_TRANSITIONS=60} [2024-11-09 02:44:12,159 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 4 predicate places. [2024-11-09 02:44:12,160 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 60 transitions, 227 flow [2024-11-09 02:44:12,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-09 02:44:12,160 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:12,160 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] [2024-11-09 02:44:12,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:44:12,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:12,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1191278576, now seen corresponding path program 2 times [2024-11-09 02:44:12,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:12,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197756525] [2024-11-09 02:44:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:12,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:12,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:12,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:12,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197756525] [2024-11-09 02:44:12,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197756525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:12,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:12,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:44:12,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876782758] [2024-11-09 02:44:12,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:12,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:44:12,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:12,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:44:12,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:44:12,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 02:44:12,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 60 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-09 02:44:12,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:12,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 02:44:12,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:12,562 INFO L124 PetriNetUnfolderBase]: 1967/3653 cut-off events. [2024-11-09 02:44:12,562 INFO L125 PetriNetUnfolderBase]: For 1803/1837 co-relation queries the response was YES. [2024-11-09 02:44:12,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9111 conditions, 3653 events. 1967/3653 cut-off events. For 1803/1837 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 25043 event pairs, 601 based on Foata normal form. 44/3624 useless extension candidates. Maximal degree in co-relation 6760. Up to 1183 conditions per place. [2024-11-09 02:44:12,580 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 56 selfloop transitions, 17 changer transitions 6/98 dead transitions. [2024-11-09 02:44:12,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 495 flow [2024-11-09 02:44:12,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:44:12,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:44:12,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-11-09 02:44:12,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6893617021276596 [2024-11-09 02:44:12,582 INFO L175 Difference]: Start difference. First operand has 55 places, 60 transitions, 227 flow. Second operand 5 states and 162 transitions. [2024-11-09 02:44:12,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 495 flow [2024-11-09 02:44:12,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 98 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 02:44:12,585 INFO L231 Difference]: Finished difference. Result has 61 places, 63 transitions, 291 flow [2024-11-09 02:44:12,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=291, PETRI_PLACES=61, PETRI_TRANSITIONS=63} [2024-11-09 02:44:12,585 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2024-11-09 02:44:12,586 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 63 transitions, 291 flow [2024-11-09 02:44:12,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 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) [2024-11-09 02:44:12,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:12,586 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] [2024-11-09 02:44:12,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:44:12,586 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:12,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:12,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1187769804, now seen corresponding path program 3 times [2024-11-09 02:44:12,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448002956] [2024-11-09 02:44:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:12,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:12,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:12,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:12,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448002956] [2024-11-09 02:44:12,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448002956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:12,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:12,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:44:12,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2237161] [2024-11-09 02:44:12,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:12,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:44:12,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:12,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:44:12,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:44:12,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 02:44:12,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2024-11-09 02:44:12,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:12,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 02:44:12,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:13,011 INFO L124 PetriNetUnfolderBase]: 1390/2606 cut-off events. [2024-11-09 02:44:13,014 INFO L125 PetriNetUnfolderBase]: For 2740/2765 co-relation queries the response was YES. [2024-11-09 02:44:13,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7318 conditions, 2606 events. 1390/2606 cut-off events. For 2740/2765 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 16603 event pairs, 371 based on Foata normal form. 58/2604 useless extension candidates. Maximal degree in co-relation 6711. Up to 964 conditions per place. [2024-11-09 02:44:13,024 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 51 selfloop transitions, 24 changer transitions 26/118 dead transitions. [2024-11-09 02:44:13,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 118 transitions, 712 flow [2024-11-09 02:44:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:44:13,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:44:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2024-11-09 02:44:13,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6595744680851063 [2024-11-09 02:44:13,027 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 291 flow. Second operand 6 states and 186 transitions. [2024-11-09 02:44:13,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 118 transitions, 712 flow [2024-11-09 02:44:13,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 118 transitions, 675 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 02:44:13,033 INFO L231 Difference]: Finished difference. Result has 65 places, 63 transitions, 346 flow [2024-11-09 02:44:13,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=65, PETRI_TRANSITIONS=63} [2024-11-09 02:44:13,034 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 14 predicate places. [2024-11-09 02:44:13,035 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 63 transitions, 346 flow [2024-11-09 02:44:13,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 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) [2024-11-09 02:44:13,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:13,036 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] [2024-11-09 02:44:13,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:44:13,036 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:13,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:13,036 INFO L85 PathProgramCache]: Analyzing trace with hash -543593100, now seen corresponding path program 4 times [2024-11-09 02:44:13,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:13,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709811248] [2024-11-09 02:44:13,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:13,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:13,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:13,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709811248] [2024-11-09 02:44:13,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709811248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:13,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:13,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:44:13,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002376128] [2024-11-09 02:44:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:13,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:44:13,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:13,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:44:13,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:44:13,178 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 02:44:13,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 346 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-09 02:44:13,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:13,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 02:44:13,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:13,383 INFO L124 PetriNetUnfolderBase]: 638/1248 cut-off events. [2024-11-09 02:44:13,384 INFO L125 PetriNetUnfolderBase]: For 1459/1485 co-relation queries the response was YES. [2024-11-09 02:44:13,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3669 conditions, 1248 events. 638/1248 cut-off events. For 1459/1485 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6919 event pairs, 190 based on Foata normal form. 36/1246 useless extension candidates. Maximal degree in co-relation 1371. Up to 453 conditions per place. [2024-11-09 02:44:13,389 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 46 selfloop transitions, 20 changer transitions 18/101 dead transitions. [2024-11-09 02:44:13,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 639 flow [2024-11-09 02:44:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:44:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:44:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 218 transitions. [2024-11-09 02:44:13,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5797872340425532 [2024-11-09 02:44:13,391 INFO L175 Difference]: Start difference. First operand has 65 places, 63 transitions, 346 flow. Second operand 8 states and 218 transitions. [2024-11-09 02:44:13,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 639 flow [2024-11-09 02:44:13,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 101 transitions, 617 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 02:44:13,395 INFO L231 Difference]: Finished difference. Result has 72 places, 59 transitions, 335 flow [2024-11-09 02:44:13,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=335, PETRI_PLACES=72, PETRI_TRANSITIONS=59} [2024-11-09 02:44:13,395 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 21 predicate places. [2024-11-09 02:44:13,395 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 59 transitions, 335 flow [2024-11-09 02:44:13,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-09 02:44:13,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:13,396 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] [2024-11-09 02:44:13,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:44:13,396 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:13,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1050100122, now seen corresponding path program 5 times [2024-11-09 02:44:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:13,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669625255] [2024-11-09 02:44:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:13,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:13,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:13,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669625255] [2024-11-09 02:44:13,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669625255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:13,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:13,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:44:13,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539823027] [2024-11-09 02:44:13,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:13,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:44:13,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:13,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:44:13,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:44:13,511 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 02:44:13,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 59 transitions, 335 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-09 02:44:13,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:13,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 02:44:13,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:13,681 INFO L124 PetriNetUnfolderBase]: 454/899 cut-off events. [2024-11-09 02:44:13,682 INFO L125 PetriNetUnfolderBase]: For 1788/1794 co-relation queries the response was YES. [2024-11-09 02:44:13,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2767 conditions, 899 events. 454/899 cut-off events. For 1788/1794 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 4574 event pairs, 131 based on Foata normal form. 20/887 useless extension candidates. Maximal degree in co-relation 1365. Up to 308 conditions per place. [2024-11-09 02:44:13,685 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 40 selfloop transitions, 14 changer transitions 24/92 dead transitions. [2024-11-09 02:44:13,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 92 transitions, 612 flow [2024-11-09 02:44:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:44:13,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:44:13,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2024-11-09 02:44:13,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5664893617021277 [2024-11-09 02:44:13,687 INFO L175 Difference]: Start difference. First operand has 72 places, 59 transitions, 335 flow. Second operand 8 states and 213 transitions. [2024-11-09 02:44:13,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 92 transitions, 612 flow [2024-11-09 02:44:13,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 92 transitions, 554 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-09 02:44:13,690 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 256 flow [2024-11-09 02:44:13,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=256, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2024-11-09 02:44:13,692 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-11-09 02:44:13,692 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 256 flow [2024-11-09 02:44:13,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-09 02:44:13,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:44:13,693 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] [2024-11-09 02:44:13,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:44:13,693 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:44:13,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:44:13,694 INFO L85 PathProgramCache]: Analyzing trace with hash -431181202, now seen corresponding path program 2 times [2024-11-09 02:44:13,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:44:13,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347081145] [2024-11-09 02:44:13,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:44:13,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:44:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:44:13,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:44:13,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:44:13,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347081145] [2024-11-09 02:44:13,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347081145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:44:13,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:44:13,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 02:44:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941857653] [2024-11-09 02:44:13,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:44:13,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:44:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:44:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:44:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:44:13,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-09 02:44:13,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 256 flow. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-09 02:44:13,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:44:13,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-09 02:44:13,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:44:13,909 INFO L124 PetriNetUnfolderBase]: 153/325 cut-off events. [2024-11-09 02:44:13,909 INFO L125 PetriNetUnfolderBase]: For 426/432 co-relation queries the response was YES. [2024-11-09 02:44:13,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 325 events. 153/325 cut-off events. For 426/432 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1126 event pairs, 52 based on Foata normal form. 20/335 useless extension candidates. Maximal degree in co-relation 603. Up to 125 conditions per place. [2024-11-09 02:44:13,910 INFO L140 encePairwiseOnDemand]: 37/47 looper letters, 0 selfloop transitions, 0 changer transitions 64/64 dead transitions. [2024-11-09 02:44:13,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 398 flow [2024-11-09 02:44:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:44:13,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:44:13,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 193 transitions. [2024-11-09 02:44:13,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5132978723404256 [2024-11-09 02:44:13,912 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 256 flow. Second operand 8 states and 193 transitions. [2024-11-09 02:44:13,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 398 flow [2024-11-09 02:44:13,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 335 flow, removed 7 selfloop flow, removed 12 redundant places. [2024-11-09 02:44:13,914 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-09 02:44:13,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-09 02:44:13,914 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2024-11-09 02:44:13,915 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-09 02:44:13,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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) [2024-11-09 02:44:13,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-09 02:44:13,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-09 02:44:13,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 02:44:13,918 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 02:44:13,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 02:44:13,919 INFO L407 BasicCegarLoop]: Path program histogram: [5, 2, 1] [2024-11-09 02:44:13,922 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:44:13,923 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:44:13,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:44:13 BasicIcfg [2024-11-09 02:44:13,932 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:44:13,933 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:44:13,935 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:44:13,935 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:44:13,936 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:44:10" (3/4) ... [2024-11-09 02:44:13,938 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:44:13,941 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 02:44:13,941 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 02:44:13,941 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 02:44:13,946 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 65 nodes and edges [2024-11-09 02:44:13,947 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 02:44:13,947 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 02:44:13,947 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 02:44:14,021 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:44:14,021 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:44:14,022 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:44:14,022 INFO L158 Benchmark]: Toolchain (without parser) took 4361.26ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 147.7MB in the beginning and 209.0MB in the end (delta: -61.3MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-11-09 02:44:14,022 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 104.9MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:44:14,023 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.53ms. Allocated memory is still 178.3MB. Free memory was 147.3MB in the beginning and 133.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 02:44:14,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.54ms. Allocated memory is still 178.3MB. Free memory was 133.6MB in the beginning and 132.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:44:14,024 INFO L158 Benchmark]: Boogie Preprocessor took 54.22ms. Allocated memory is still 178.3MB. Free memory was 131.5MB in the beginning and 130.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:44:14,024 INFO L158 Benchmark]: RCFGBuilder took 524.47ms. Allocated memory is still 178.3MB. Free memory was 129.4MB in the beginning and 125.2MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 02:44:14,024 INFO L158 Benchmark]: TraceAbstraction took 3446.05ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 124.2MB in the beginning and 214.2MB in the end (delta: -90.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-11-09 02:44:14,024 INFO L158 Benchmark]: Witness Printer took 88.61ms. Allocated memory is still 281.0MB. Free memory was 214.2MB in the beginning and 209.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:44:14,025 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 104.9MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.53ms. Allocated memory is still 178.3MB. Free memory was 147.3MB in the beginning and 133.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.54ms. Allocated memory is still 178.3MB. Free memory was 133.6MB in the beginning and 132.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.22ms. Allocated memory is still 178.3MB. Free memory was 131.5MB in the beginning and 130.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 524.47ms. Allocated memory is still 178.3MB. Free memory was 129.4MB in the beginning and 125.2MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3446.05ms. Allocated memory was 178.3MB in the beginning and 281.0MB in the end (delta: 102.8MB). Free memory was 124.2MB in the beginning and 214.2MB in the end (delta: -90.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 88.61ms. Allocated memory is still 281.0MB. Free memory was 214.2MB in the beginning and 209.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 94]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 73 locations, 4 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: 3.3s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 249 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1131 IncrementalHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 11 mSDtfsCounter, 1131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=5, InterpolantAutomatonStates: 46, 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, 0.8s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 311 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 02:44:14,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE