./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/triangular-longer-1.i --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/pthread/triangular-longer-1.i -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 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:23:52,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:23:52,822 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:23:52,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:23:52,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:23:52,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:23:52,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:23:52,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:23:52,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:23:52,865 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:23:52,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:23:52,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:23:52,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:23:52,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:23:52,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:23:52,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:23:52,869 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:23:52,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:23:52,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:23:52,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:23:52,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:23:52,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:23:52,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:23:52,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:23:52,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:23:52,872 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:23:52,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:23:52,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:23:52,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:23:52,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:23:52,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:23:52,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:23:52,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:23:52,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:23:52,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:23:52,875 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:23:52,875 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:23:52,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:23:52,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:23:52,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:23:52,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:23:52,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:23:52,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e30b67a045ce6921ac9aa6cdcebddb50c3d7d787a6b9dd7b66c9173f916fde4 [2024-11-09 02:23:53,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:23:53,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:23:53,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:23:53,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:23:53,154 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:23:53,155 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-1.i [2024-11-09 02:23:54,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:23:54,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:23:54,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-1.i [2024-11-09 02:23:54,934 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eea509f5/a6b3e5e96bb743ccac806a45b1ef30e6/FLAGfa60fd920 [2024-11-09 02:23:55,227 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2eea509f5/a6b3e5e96bb743ccac806a45b1ef30e6 [2024-11-09 02:23:55,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:23:55,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:23:55,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:23:55,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:23:55,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:23:55,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48195891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55, skipping insertion in model container [2024-11-09 02:23:55,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,285 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:23:55,686 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/pthread/triangular-longer-1.i[30961,30974] [2024-11-09 02:23:55,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:23:55,699 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:23:55,750 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/pthread/triangular-longer-1.i[30961,30974] [2024-11-09 02:23:55,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:23:55,838 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:23:55,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55 WrapperNode [2024-11-09 02:23:55,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:23:55,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:23:55,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:23:55,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:23:55,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,916 INFO L138 Inliner]: procedures = 168, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-09 02:23:55,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:23:55,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:23:55,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:23:55,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:23:55,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,933 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,957 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 02:23:55,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:23:55,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:23:55,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:23:55,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:23:55,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (1/1) ... [2024-11-09 02:23:55,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:23:56,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:23:56,023 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 02:23:56,030 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 02:23:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-09 02:23:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-09 02:23:56,079 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-09 02:23:56,080 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-09 02:23:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:23:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:23:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:23:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:23:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:23:56,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:23:56,083 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 02:23:56,215 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:23:56,217 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:23:56,337 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:23:56,338 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:23:56,426 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:23:56,426 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 02:23:56,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:23:56 BoogieIcfgContainer [2024-11-09 02:23:56,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:23:56,429 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:23:56,429 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:23:56,433 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:23:56,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:23:55" (1/3) ... [2024-11-09 02:23:56,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9d83cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:23:56, skipping insertion in model container [2024-11-09 02:23:56,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:23:55" (2/3) ... [2024-11-09 02:23:56,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9d83cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:23:56, skipping insertion in model container [2024-11-09 02:23:56,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:23:56" (3/3) ... [2024-11-09 02:23:56,436 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-1.i [2024-11-09 02:23:56,454 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:23:56,455 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:23:56,455 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:23:56,491 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:23:56,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 56 flow [2024-11-09 02:23:56,557 INFO L124 PetriNetUnfolderBase]: 3/22 cut-off events. [2024-11-09 02:23:56,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:23:56,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 22 events. 3/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-11-09 02:23:56,561 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 56 flow [2024-11-09 02:23:56,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 50 flow [2024-11-09 02:23:56,574 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:23:56,583 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;@374c14a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:23:56,584 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 02:23:56,595 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:23:56,596 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-09 02:23:56,596 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:23:56,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:56,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:56,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash 762204344, now seen corresponding path program 1 times [2024-11-09 02:23:56,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:56,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671349442] [2024-11-09 02:23:56,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:57,103 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 02:23:57,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:57,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671349442] [2024-11-09 02:23:57,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671349442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:57,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:57,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:23:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389062852] [2024-11-09 02:23:57,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:57,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:23:57,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:23:57,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:23:57,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:23:57,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 02:23:57,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:57,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:23:57,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:57,492 INFO L124 PetriNetUnfolderBase]: 321/543 cut-off events. [2024-11-09 02:23:57,492 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 02:23:57,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 543 events. 321/543 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2179 event pairs, 62 based on Foata normal form. 12/542 useless extension candidates. Maximal degree in co-relation 1045. Up to 221 conditions per place. [2024-11-09 02:23:57,503 INFO L140 encePairwiseOnDemand]: 16/24 looper letters, 25 selfloop transitions, 4 changer transitions 22/54 dead transitions. [2024-11-09 02:23:57,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 54 transitions, 216 flow [2024-11-09 02:23:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:23:57,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:23:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 84 transitions. [2024-11-09 02:23:57,515 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-09 02:23:57,518 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 6 states and 84 transitions. [2024-11-09 02:23:57,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 54 transitions, 216 flow [2024-11-09 02:23:57,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 54 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:23:57,526 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 71 flow [2024-11-09 02:23:57,528 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=71, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2024-11-09 02:23:57,532 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2024-11-09 02:23:57,534 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 71 flow [2024-11-09 02:23:57,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 02:23:57,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:57,535 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:57,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:23:57,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:57,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:57,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1754207660, now seen corresponding path program 1 times [2024-11-09 02:23:57,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:57,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895544067] [2024-11-09 02:23:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:57,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:57,705 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 02:23:57,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:57,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895544067] [2024-11-09 02:23:57,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895544067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:57,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:57,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:23:57,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967802175] [2024-11-09 02:23:57,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:57,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:23:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:23:57,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:23:57,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:23:57,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 71 flow. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 02:23:57,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:57,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:23:57,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:57,969 INFO L124 PetriNetUnfolderBase]: 382/689 cut-off events. [2024-11-09 02:23:57,970 INFO L125 PetriNetUnfolderBase]: For 285/291 co-relation queries the response was YES. [2024-11-09 02:23:57,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1586 conditions, 689 events. 382/689 cut-off events. For 285/291 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2915 event pairs, 65 based on Foata normal form. 33/721 useless extension candidates. Maximal degree in co-relation 1572. Up to 246 conditions per place. [2024-11-09 02:23:57,976 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 46 selfloop transitions, 9 changer transitions 20/78 dead transitions. [2024-11-09 02:23:57,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 78 transitions, 379 flow [2024-11-09 02:23:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:23:57,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:23:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 117 transitions. [2024-11-09 02:23:57,978 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-09 02:23:57,979 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 71 flow. Second operand 9 states and 117 transitions. [2024-11-09 02:23:57,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 78 transitions, 379 flow [2024-11-09 02:23:57,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 78 transitions, 363 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-09 02:23:57,986 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 156 flow [2024-11-09 02:23:57,986 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=156, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2024-11-09 02:23:57,987 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 16 predicate places. [2024-11-09 02:23:57,987 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 156 flow [2024-11-09 02:23:57,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 02:23:57,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:57,988 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:57,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:23:57,988 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:57,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:57,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2024183696, now seen corresponding path program 2 times [2024-11-09 02:23:57,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:57,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405560607] [2024-11-09 02:23:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:57,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:58,106 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 02:23:58,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:58,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405560607] [2024-11-09 02:23:58,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405560607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:58,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:58,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:23:58,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518070289] [2024-11-09 02:23:58,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:58,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:23:58,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:58,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:23:58,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:23:58,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:23:58,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 02:23:58,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:58,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:23:58,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:58,338 INFO L124 PetriNetUnfolderBase]: 328/605 cut-off events. [2024-11-09 02:23:58,339 INFO L125 PetriNetUnfolderBase]: For 1001/1013 co-relation queries the response was YES. [2024-11-09 02:23:58,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 605 events. 328/605 cut-off events. For 1001/1013 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2538 event pairs, 65 based on Foata normal form. 57/661 useless extension candidates. Maximal degree in co-relation 1713. Up to 234 conditions per place. [2024-11-09 02:23:58,344 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 38 selfloop transitions, 9 changer transitions 28/78 dead transitions. [2024-11-09 02:23:58,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 78 transitions, 496 flow [2024-11-09 02:23:58,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 02:23:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 02:23:58,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2024-11-09 02:23:58,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5364583333333334 [2024-11-09 02:23:58,348 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 156 flow. Second operand 8 states and 103 transitions. [2024-11-09 02:23:58,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 78 transitions, 496 flow [2024-11-09 02:23:58,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 78 transitions, 488 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-09 02:23:58,355 INFO L231 Difference]: Finished difference. Result has 49 places, 33 transitions, 210 flow [2024-11-09 02:23:58,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=210, PETRI_PLACES=49, PETRI_TRANSITIONS=33} [2024-11-09 02:23:58,356 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-09 02:23:58,356 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 33 transitions, 210 flow [2024-11-09 02:23:58,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 02:23:58,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:58,357 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:58,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:23:58,357 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:58,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:58,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1063992253, now seen corresponding path program 1 times [2024-11-09 02:23:58,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:58,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409376262] [2024-11-09 02:23:58,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:58,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:58,503 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 02:23:58,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:58,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409376262] [2024-11-09 02:23:58,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409376262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:58,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:58,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:23:58,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210227844] [2024-11-09 02:23:58,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:58,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:23:58,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:58,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:23:58,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:23:58,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:23:58,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 33 transitions, 210 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 02:23:58,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:58,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:23:58,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:58,744 INFO L124 PetriNetUnfolderBase]: 355/659 cut-off events. [2024-11-09 02:23:58,745 INFO L125 PetriNetUnfolderBase]: For 1815/1827 co-relation queries the response was YES. [2024-11-09 02:23:58,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2065 conditions, 659 events. 355/659 cut-off events. For 1815/1827 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2860 event pairs, 80 based on Foata normal form. 21/679 useless extension candidates. Maximal degree in co-relation 2039. Up to 258 conditions per place. [2024-11-09 02:23:58,750 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 43 selfloop transitions, 16 changer transitions 21/83 dead transitions. [2024-11-09 02:23:58,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 83 transitions, 597 flow [2024-11-09 02:23:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:23:58,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:23:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2024-11-09 02:23:58,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5231481481481481 [2024-11-09 02:23:58,752 INFO L175 Difference]: Start difference. First operand has 49 places, 33 transitions, 210 flow. Second operand 9 states and 113 transitions. [2024-11-09 02:23:58,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 83 transitions, 597 flow [2024-11-09 02:23:58,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 83 transitions, 527 flow, removed 24 selfloop flow, removed 7 redundant places. [2024-11-09 02:23:58,762 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 297 flow [2024-11-09 02:23:58,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=297, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2024-11-09 02:23:58,763 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 26 predicate places. [2024-11-09 02:23:58,763 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 297 flow [2024-11-09 02:23:58,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 02:23:58,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:58,764 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:58,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:23:58,764 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:58,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:58,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1744668785, now seen corresponding path program 2 times [2024-11-09 02:23:58,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:58,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164040568] [2024-11-09 02:23:58,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:58,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:58,863 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 02:23:58,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:58,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164040568] [2024-11-09 02:23:58,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164040568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:58,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:58,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:23:58,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162315156] [2024-11-09 02:23:58,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:58,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:23:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:23:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:23:58,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:23:58,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 297 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 02:23:58,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:58,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:23:58,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:59,188 INFO L124 PetriNetUnfolderBase]: 526/971 cut-off events. [2024-11-09 02:23:59,189 INFO L125 PetriNetUnfolderBase]: For 3328/3340 co-relation queries the response was YES. [2024-11-09 02:23:59,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3187 conditions, 971 events. 526/971 cut-off events. For 3328/3340 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4538 event pairs, 53 based on Foata normal form. 39/1007 useless extension candidates. Maximal degree in co-relation 3160. Up to 256 conditions per place. [2024-11-09 02:23:59,198 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 57 selfloop transitions, 22 changer transitions 23/105 dead transitions. [2024-11-09 02:23:59,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 105 transitions, 793 flow [2024-11-09 02:23:59,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 02:23:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 02:23:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2024-11-09 02:23:59,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2024-11-09 02:23:59,201 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 297 flow. Second operand 11 states and 141 transitions. [2024-11-09 02:23:59,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 105 transitions, 793 flow [2024-11-09 02:23:59,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 105 transitions, 733 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-11-09 02:23:59,211 INFO L231 Difference]: Finished difference. Result has 64 places, 47 transitions, 407 flow [2024-11-09 02:23:59,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=407, PETRI_PLACES=64, PETRI_TRANSITIONS=47} [2024-11-09 02:23:59,212 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 38 predicate places. [2024-11-09 02:23:59,213 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 407 flow [2024-11-09 02:23:59,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 02:23:59,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:59,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:59,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:23:59,214 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:59,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:59,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1091700605, now seen corresponding path program 3 times [2024-11-09 02:23:59,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:59,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989412165] [2024-11-09 02:23:59,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:59,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:59,346 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 02:23:59,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:59,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989412165] [2024-11-09 02:23:59,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989412165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:23:59,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:23:59,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:23:59,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275479001] [2024-11-09 02:23:59,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:23:59,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 02:23:59,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:23:59,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 02:23:59,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-09 02:23:59,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:23:59,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 407 flow. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 02:23:59,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:23:59,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:23:59,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:23:59,621 INFO L124 PetriNetUnfolderBase]: 463/869 cut-off events. [2024-11-09 02:23:59,621 INFO L125 PetriNetUnfolderBase]: For 5168/5180 co-relation queries the response was YES. [2024-11-09 02:23:59,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3289 conditions, 869 events. 463/869 cut-off events. For 5168/5180 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 4024 event pairs, 71 based on Foata normal form. 57/923 useless extension candidates. Maximal degree in co-relation 3256. Up to 226 conditions per place. [2024-11-09 02:23:59,631 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 44 selfloop transitions, 22 changer transitions 31/100 dead transitions. [2024-11-09 02:23:59,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 100 transitions, 931 flow [2024-11-09 02:23:59,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:23:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:23:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 125 transitions. [2024-11-09 02:23:59,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-09 02:23:59,633 INFO L175 Difference]: Start difference. First operand has 64 places, 47 transitions, 407 flow. Second operand 10 states and 125 transitions. [2024-11-09 02:23:59,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 100 transitions, 931 flow [2024-11-09 02:23:59,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 100 transitions, 865 flow, removed 23 selfloop flow, removed 5 redundant places. [2024-11-09 02:23:59,645 INFO L231 Difference]: Finished difference. Result has 70 places, 48 transitions, 463 flow [2024-11-09 02:23:59,645 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=463, PETRI_PLACES=70, PETRI_TRANSITIONS=48} [2024-11-09 02:23:59,646 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 44 predicate places. [2024-11-09 02:23:59,647 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 48 transitions, 463 flow [2024-11-09 02:23:59,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 02:23:59,648 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:23:59,648 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:23:59,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:23:59,649 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:23:59,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:23:59,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1652274962, now seen corresponding path program 1 times [2024-11-09 02:23:59,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:23:59,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888410610] [2024-11-09 02:23:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:59,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:23:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:59,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:23:59,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:23:59,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888410610] [2024-11-09 02:23:59,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888410610] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:23:59,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300415668] [2024-11-09 02:23:59,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:23:59,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:23:59,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:23:59,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:23:59,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 02:23:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:23:59,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 02:23:59,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:00,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:00,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:00,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300415668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:00,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:00,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-09 02:24:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75491870] [2024-11-09 02:24:00,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:00,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:24:00,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:00,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:24:00,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-09 02:24:00,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:00,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 48 transitions, 463 flow. Second operand has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 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 02:24:00,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:00,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:00,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:00,701 INFO L124 PetriNetUnfolderBase]: 661/1208 cut-off events. [2024-11-09 02:24:00,702 INFO L125 PetriNetUnfolderBase]: For 9686/9698 co-relation queries the response was YES. [2024-11-09 02:24:00,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4948 conditions, 1208 events. 661/1208 cut-off events. For 9686/9698 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5416 event pairs, 59 based on Foata normal form. 57/1262 useless extension candidates. Maximal degree in co-relation 4912. Up to 201 conditions per place. [2024-11-09 02:24:00,714 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 66 selfloop transitions, 37 changer transitions 56/162 dead transitions. [2024-11-09 02:24:00,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 162 transitions, 1555 flow [2024-11-09 02:24:00,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 02:24:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-09 02:24:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 236 transitions. [2024-11-09 02:24:00,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-09 02:24:00,717 INFO L175 Difference]: Start difference. First operand has 70 places, 48 transitions, 463 flow. Second operand 19 states and 236 transitions. [2024-11-09 02:24:00,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 162 transitions, 1555 flow [2024-11-09 02:24:00,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 162 transitions, 1431 flow, removed 45 selfloop flow, removed 8 redundant places. [2024-11-09 02:24:00,737 INFO L231 Difference]: Finished difference. Result has 87 places, 64 transitions, 793 flow [2024-11-09 02:24:00,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=793, PETRI_PLACES=87, PETRI_TRANSITIONS=64} [2024-11-09 02:24:00,738 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 61 predicate places. [2024-11-09 02:24:00,738 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 64 transitions, 793 flow [2024-11-09 02:24:00,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 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 02:24:00,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:00,739 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:00,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 02:24:00,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:00,944 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:00,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:00,944 INFO L85 PathProgramCache]: Analyzing trace with hash 729694198, now seen corresponding path program 1 times [2024-11-09 02:24:00,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:00,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714651044] [2024-11-09 02:24:00,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:00,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:01,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:01,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714651044] [2024-11-09 02:24:01,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714651044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:01,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636507142] [2024-11-09 02:24:01,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:01,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:01,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:01,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:01,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 02:24:01,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:01,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 02:24:01,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:01,310 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:01,516 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:01,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636507142] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:01,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:01,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 02:24:01,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056159771] [2024-11-09 02:24:01,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:01,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 02:24:01,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:01,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 02:24:01,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-09 02:24:01,535 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:01,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 64 transitions, 793 flow. Second operand has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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 02:24:01,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:01,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:01,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:02,289 INFO L124 PetriNetUnfolderBase]: 859/1619 cut-off events. [2024-11-09 02:24:02,289 INFO L125 PetriNetUnfolderBase]: For 20143/20155 co-relation queries the response was YES. [2024-11-09 02:24:02,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7496 conditions, 1619 events. 859/1619 cut-off events. For 20143/20155 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7244 event pairs, 215 based on Foata normal form. 93/1711 useless extension candidates. Maximal degree in co-relation 7453. Up to 756 conditions per place. [2024-11-09 02:24:02,303 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 95 selfloop transitions, 27 changer transitions 89/214 dead transitions. [2024-11-09 02:24:02,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 214 transitions, 2481 flow [2024-11-09 02:24:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 02:24:02,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-09 02:24:02,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 301 transitions. [2024-11-09 02:24:02,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5016666666666667 [2024-11-09 02:24:02,306 INFO L175 Difference]: Start difference. First operand has 87 places, 64 transitions, 793 flow. Second operand 25 states and 301 transitions. [2024-11-09 02:24:02,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 214 transitions, 2481 flow [2024-11-09 02:24:02,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 214 transitions, 1972 flow, removed 241 selfloop flow, removed 10 redundant places. [2024-11-09 02:24:02,342 INFO L231 Difference]: Finished difference. Result has 115 places, 78 transitions, 887 flow [2024-11-09 02:24:02,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=887, PETRI_PLACES=115, PETRI_TRANSITIONS=78} [2024-11-09 02:24:02,343 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 89 predicate places. [2024-11-09 02:24:02,343 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 78 transitions, 887 flow [2024-11-09 02:24:02,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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 02:24:02,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:02,344 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:02,364 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 02:24:02,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 02:24:02,546 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:02,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:02,546 INFO L85 PathProgramCache]: Analyzing trace with hash 2008695610, now seen corresponding path program 2 times [2024-11-09 02:24:02,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:02,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218697508] [2024-11-09 02:24:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:02,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:02,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218697508] [2024-11-09 02:24:02,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218697508] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:02,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639507984] [2024-11-09 02:24:02,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 02:24:02,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:02,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:02,743 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:02,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 02:24:02,805 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 02:24:02,806 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:02,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 02:24:02,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:02,895 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:02,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:03,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639507984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:03,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:03,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 02:24:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814893263] [2024-11-09 02:24:03,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:03,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 02:24:03,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:03,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 02:24:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-09 02:24:03,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:03,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 78 transitions, 887 flow. Second operand has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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 02:24:03,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:03,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:03,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:04,147 INFO L124 PetriNetUnfolderBase]: 1453/2753 cut-off events. [2024-11-09 02:24:04,147 INFO L125 PetriNetUnfolderBase]: For 65076/65088 co-relation queries the response was YES. [2024-11-09 02:24:04,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14625 conditions, 2753 events. 1453/2753 cut-off events. For 65076/65088 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14778 event pairs, 136 based on Foata normal form. 93/2845 useless extension candidates. Maximal degree in co-relation 14569. Up to 495 conditions per place. [2024-11-09 02:24:04,176 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 127 selfloop transitions, 82 changer transitions 91/303 dead transitions. [2024-11-09 02:24:04,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 303 transitions, 3945 flow [2024-11-09 02:24:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 02:24:04,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-09 02:24:04,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 393 transitions. [2024-11-09 02:24:04,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.51171875 [2024-11-09 02:24:04,180 INFO L175 Difference]: Start difference. First operand has 115 places, 78 transitions, 887 flow. Second operand 32 states and 393 transitions. [2024-11-09 02:24:04,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 303 transitions, 3945 flow [2024-11-09 02:24:04,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 303 transitions, 3348 flow, removed 289 selfloop flow, removed 13 redundant places. [2024-11-09 02:24:04,270 INFO L231 Difference]: Finished difference. Result has 147 places, 121 transitions, 1696 flow [2024-11-09 02:24:04,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1696, PETRI_PLACES=147, PETRI_TRANSITIONS=121} [2024-11-09 02:24:04,271 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 121 predicate places. [2024-11-09 02:24:04,271 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 121 transitions, 1696 flow [2024-11-09 02:24:04,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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 02:24:04,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:04,272 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:04,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 02:24:04,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:04,473 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:04,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:04,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2012930652, now seen corresponding path program 3 times [2024-11-09 02:24:04,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241958267] [2024-11-09 02:24:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:04,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:04,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241958267] [2024-11-09 02:24:04,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241958267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:04,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957337119] [2024-11-09 02:24:04,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 02:24:04,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:04,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:04,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:04,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 02:24:04,690 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 02:24:04,690 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:04,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 02:24:04,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:04,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:04,860 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:04,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957337119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:04,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:04,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-09 02:24:04,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256896155] [2024-11-09 02:24:04,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:04,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 02:24:04,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 02:24:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-09 02:24:04,884 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:04,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 121 transitions, 1696 flow. Second operand has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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 02:24:04,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:04,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:04,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:06,426 INFO L124 PetriNetUnfolderBase]: 2047/3853 cut-off events. [2024-11-09 02:24:06,426 INFO L125 PetriNetUnfolderBase]: For 159108/159114 co-relation queries the response was YES. [2024-11-09 02:24:06,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23545 conditions, 3853 events. 2047/3853 cut-off events. For 159108/159114 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 22443 event pairs, 96 based on Foata normal form. 123/3975 useless extension candidates. Maximal degree in co-relation 23474. Up to 723 conditions per place. [2024-11-09 02:24:06,488 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 131 selfloop transitions, 129 changer transitions 113/376 dead transitions. [2024-11-09 02:24:06,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 376 transitions, 6015 flow [2024-11-09 02:24:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-09 02:24:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-09 02:24:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 430 transitions. [2024-11-09 02:24:06,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2024-11-09 02:24:06,491 INFO L175 Difference]: Start difference. First operand has 147 places, 121 transitions, 1696 flow. Second operand 35 states and 430 transitions. [2024-11-09 02:24:06,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 376 transitions, 6015 flow [2024-11-09 02:24:06,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 376 transitions, 5154 flow, removed 414 selfloop flow, removed 15 redundant places. [2024-11-09 02:24:06,711 INFO L231 Difference]: Finished difference. Result has 179 places, 168 transitions, 2668 flow [2024-11-09 02:24:06,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1363, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=2668, PETRI_PLACES=179, PETRI_TRANSITIONS=168} [2024-11-09 02:24:06,712 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 153 predicate places. [2024-11-09 02:24:06,712 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 168 transitions, 2668 flow [2024-11-09 02:24:06,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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 02:24:06,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:06,713 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:06,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 02:24:06,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:06,918 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:06,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash 330236131, now seen corresponding path program 4 times [2024-11-09 02:24:06,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:06,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185577178] [2024-11-09 02:24:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:06,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:07,143 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:07,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:07,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185577178] [2024-11-09 02:24:07,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185577178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:07,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087171328] [2024-11-09 02:24:07,145 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 02:24:07,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:07,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:07,147 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:07,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 02:24:07,205 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 02:24:07,206 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:07,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 02:24:07,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:07,295 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:07,296 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:07,502 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:07,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087171328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:07,502 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:07,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-11-09 02:24:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955423396] [2024-11-09 02:24:07,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:07,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 02:24:07,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:07,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 02:24:07,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2024-11-09 02:24:07,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:07,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 168 transitions, 2668 flow. Second operand has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 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 02:24:07,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:07,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:07,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:09,786 INFO L124 PetriNetUnfolderBase]: 3406/6267 cut-off events. [2024-11-09 02:24:09,786 INFO L125 PetriNetUnfolderBase]: For 404474/404480 co-relation queries the response was YES. [2024-11-09 02:24:09,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46588 conditions, 6267 events. 3406/6267 cut-off events. For 404474/404480 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 36134 event pairs, 89 based on Foata normal form. 123/6387 useless extension candidates. Maximal degree in co-relation 46506. Up to 1245 conditions per place. [2024-11-09 02:24:09,892 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 170 selfloop transitions, 223 changer transitions 160/556 dead transitions. [2024-11-09 02:24:09,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 556 transitions, 11774 flow [2024-11-09 02:24:09,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 02:24:09,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-09 02:24:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 628 transitions. [2024-11-09 02:24:09,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130718954248366 [2024-11-09 02:24:09,901 INFO L175 Difference]: Start difference. First operand has 179 places, 168 transitions, 2668 flow. Second operand 51 states and 628 transitions. [2024-11-09 02:24:09,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 556 transitions, 11774 flow [2024-11-09 02:24:10,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 556 transitions, 9571 flow, removed 1071 selfloop flow, removed 19 redundant places. [2024-11-09 02:24:10,474 INFO L231 Difference]: Finished difference. Result has 233 places, 278 transitions, 5586 flow [2024-11-09 02:24:10,475 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2145, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=5586, PETRI_PLACES=233, PETRI_TRANSITIONS=278} [2024-11-09 02:24:10,475 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 207 predicate places. [2024-11-09 02:24:10,476 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 278 transitions, 5586 flow [2024-11-09 02:24:10,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 7.038461538461538) internal successors, (183), 26 states have internal predecessors, (183), 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 02:24:10,476 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:10,476 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:10,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 02:24:10,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 02:24:10,677 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:10,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash -128760654, now seen corresponding path program 5 times [2024-11-09 02:24:10,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:10,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377070652] [2024-11-09 02:24:10,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:10,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:11,294 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:11,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:11,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377070652] [2024-11-09 02:24:11,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377070652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:11,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430698299] [2024-11-09 02:24:11,295 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 02:24:11,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:11,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:11,298 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:11,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 02:24:11,365 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-09 02:24:11,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:11,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 02:24:11,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:11,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 202 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:11,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430698299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:11,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:11,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2024-11-09 02:24:11,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718189886] [2024-11-09 02:24:11,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:11,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 02:24:11,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:11,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 02:24:11,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=619, Unknown=0, NotChecked=0, Total=812 [2024-11-09 02:24:11,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:11,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 278 transitions, 5586 flow. Second operand has 29 states, 29 states have (on average 7.310344827586207) internal successors, (212), 29 states have internal predecessors, (212), 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 02:24:11,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:11,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:11,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:14,178 INFO L124 PetriNetUnfolderBase]: 3496/6608 cut-off events. [2024-11-09 02:24:14,178 INFO L125 PetriNetUnfolderBase]: For 560184/560190 co-relation queries the response was YES. [2024-11-09 02:24:14,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50510 conditions, 6608 events. 3496/6608 cut-off events. For 560184/560190 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 39309 event pairs, 1349 based on Foata normal form. 87/6694 useless extension candidates. Maximal degree in co-relation 50404. Up to 4788 conditions per place. [2024-11-09 02:24:14,258 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 332 selfloop transitions, 49 changer transitions 113/497 dead transitions. [2024-11-09 02:24:14,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 497 transitions, 11502 flow [2024-11-09 02:24:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 02:24:14,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-11-09 02:24:14,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 433 transitions. [2024-11-09 02:24:14,261 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48761261261261263 [2024-11-09 02:24:14,261 INFO L175 Difference]: Start difference. First operand has 233 places, 278 transitions, 5586 flow. Second operand 37 states and 433 transitions. [2024-11-09 02:24:14,261 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 497 transitions, 11502 flow [2024-11-09 02:24:15,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 497 transitions, 7784 flow, removed 1834 selfloop flow, removed 19 redundant places. [2024-11-09 02:24:15,375 INFO L231 Difference]: Finished difference. Result has 256 places, 296 transitions, 4335 flow [2024-11-09 02:24:15,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3668, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=4335, PETRI_PLACES=256, PETRI_TRANSITIONS=296} [2024-11-09 02:24:15,376 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 230 predicate places. [2024-11-09 02:24:15,377 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 296 transitions, 4335 flow [2024-11-09 02:24:15,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.310344827586207) internal successors, (212), 29 states have internal predecessors, (212), 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 02:24:15,377 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:15,377 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:15,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 02:24:15,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:15,578 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:15,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:15,579 INFO L85 PathProgramCache]: Analyzing trace with hash -94137252, now seen corresponding path program 6 times [2024-11-09 02:24:15,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:15,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101720192] [2024-11-09 02:24:15,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:15,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:16,063 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:16,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:16,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101720192] [2024-11-09 02:24:16,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101720192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:16,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037174837] [2024-11-09 02:24:16,064 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 02:24:16,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:16,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:16,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:16,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 02:24:16,138 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-09 02:24:16,138 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:16,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 02:24:16,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:16,301 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:16,301 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:16,662 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:16,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037174837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:16,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:16,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 30 [2024-11-09 02:24:16,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032289569] [2024-11-09 02:24:16,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:16,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 02:24:16,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:16,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 02:24:16,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=743, Unknown=0, NotChecked=0, Total=930 [2024-11-09 02:24:16,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:16,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 296 transitions, 4335 flow. Second operand has 31 states, 31 states have (on average 7.290322580645161) internal successors, (226), 31 states have internal predecessors, (226), 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 02:24:16,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:16,685 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:16,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:19,179 INFO L124 PetriNetUnfolderBase]: 4018/7799 cut-off events. [2024-11-09 02:24:19,180 INFO L125 PetriNetUnfolderBase]: For 501683/501689 co-relation queries the response was YES. [2024-11-09 02:24:19,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49228 conditions, 7799 events. 4018/7799 cut-off events. For 501683/501689 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 48600 event pairs, 870 based on Foata normal form. 87/7885 useless extension candidates. Maximal degree in co-relation 49115. Up to 3568 conditions per place. [2024-11-09 02:24:19,275 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 316 selfloop transitions, 170 changer transitions 127/616 dead transitions. [2024-11-09 02:24:19,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 616 transitions, 10473 flow [2024-11-09 02:24:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 02:24:19,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-09 02:24:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 519 transitions. [2024-11-09 02:24:19,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4914772727272727 [2024-11-09 02:24:19,279 INFO L175 Difference]: Start difference. First operand has 256 places, 296 transitions, 4335 flow. Second operand 44 states and 519 transitions. [2024-11-09 02:24:19,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 616 transitions, 10473 flow [2024-11-09 02:24:20,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 616 transitions, 9694 flow, removed 362 selfloop flow, removed 23 redundant places. [2024-11-09 02:24:20,283 INFO L231 Difference]: Finished difference. Result has 288 places, 353 transitions, 5572 flow [2024-11-09 02:24:20,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3908, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=5572, PETRI_PLACES=288, PETRI_TRANSITIONS=353} [2024-11-09 02:24:20,285 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 262 predicate places. [2024-11-09 02:24:20,285 INFO L471 AbstractCegarLoop]: Abstraction has has 288 places, 353 transitions, 5572 flow [2024-11-09 02:24:20,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.290322580645161) internal successors, (226), 31 states have internal predecessors, (226), 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 02:24:20,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:20,285 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:20,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 02:24:20,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:20,488 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:20,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:20,488 INFO L85 PathProgramCache]: Analyzing trace with hash 889180580, now seen corresponding path program 7 times [2024-11-09 02:24:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:20,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702832740] [2024-11-09 02:24:20,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:20,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:21,049 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:21,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:21,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702832740] [2024-11-09 02:24:21,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702832740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:21,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624246275] [2024-11-09 02:24:21,050 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 02:24:21,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:21,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:21,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:21,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 02:24:21,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:21,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 02:24:21,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:21,319 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:21,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:21,736 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:21,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624246275] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:21,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:21,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 34 [2024-11-09 02:24:21,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370245731] [2024-11-09 02:24:21,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:21,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-09 02:24:21,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:21,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-09 02:24:21,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 02:24:21,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:21,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 353 transitions, 5572 flow. Second operand has 35 states, 35 states have (on average 7.285714285714286) internal successors, (255), 35 states have internal predecessors, (255), 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 02:24:21,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:21,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:21,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:24,814 INFO L124 PetriNetUnfolderBase]: 4729/9221 cut-off events. [2024-11-09 02:24:24,815 INFO L125 PetriNetUnfolderBase]: For 739508/739514 co-relation queries the response was YES. [2024-11-09 02:24:24,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62676 conditions, 9221 events. 4729/9221 cut-off events. For 739508/739514 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 58510 event pairs, 186 based on Foata normal form. 87/9307 useless extension candidates. Maximal degree in co-relation 62550. Up to 1479 conditions per place. [2024-11-09 02:24:25,078 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 222 selfloop transitions, 349 changer transitions 139/713 dead transitions. [2024-11-09 02:24:25,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 713 transitions, 13366 flow [2024-11-09 02:24:25,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 02:24:25,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2024-11-09 02:24:25,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 599 transitions. [2024-11-09 02:24:25,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49916666666666665 [2024-11-09 02:24:25,084 INFO L175 Difference]: Start difference. First operand has 288 places, 353 transitions, 5572 flow. Second operand 50 states and 599 transitions. [2024-11-09 02:24:25,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 713 transitions, 13366 flow [2024-11-09 02:24:26,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 713 transitions, 12012 flow, removed 589 selfloop flow, removed 30 redundant places. [2024-11-09 02:24:26,771 INFO L231 Difference]: Finished difference. Result has 322 places, 423 transitions, 7427 flow [2024-11-09 02:24:26,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4898, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=289, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=7427, PETRI_PLACES=322, PETRI_TRANSITIONS=423} [2024-11-09 02:24:26,772 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 296 predicate places. [2024-11-09 02:24:26,772 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 423 transitions, 7427 flow [2024-11-09 02:24:26,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.285714285714286) internal successors, (255), 35 states have internal predecessors, (255), 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 02:24:26,772 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:26,772 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:26,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 02:24:26,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 02:24:26,973 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:26,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:26,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1747998468, now seen corresponding path program 8 times [2024-11-09 02:24:26,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:26,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496823043] [2024-11-09 02:24:26,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:26,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:27,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:27,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496823043] [2024-11-09 02:24:27,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496823043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:27,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767670442] [2024-11-09 02:24:27,307 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 02:24:27,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:27,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:27,308 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:27,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 02:24:27,366 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 02:24:27,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:27,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 02:24:27,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:27,465 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:27,757 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 201 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:27,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767670442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:27,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:27,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 33 [2024-11-09 02:24:27,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513445903] [2024-11-09 02:24:27,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 02:24:27,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:27,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 02:24:27,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=930, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 02:24:27,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:27,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 423 transitions, 7427 flow. Second operand has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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 02:24:27,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:27,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:27,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:31,761 INFO L124 PetriNetUnfolderBase]: 5980/11496 cut-off events. [2024-11-09 02:24:31,762 INFO L125 PetriNetUnfolderBase]: For 1194718/1194724 co-relation queries the response was YES. [2024-11-09 02:24:31,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86171 conditions, 11496 events. 5980/11496 cut-off events. For 1194718/1194724 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 74273 event pairs, 96 based on Foata normal form. 87/11582 useless extension candidates. Maximal degree in co-relation 86029. Up to 1833 conditions per place. [2024-11-09 02:24:31,927 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 262 selfloop transitions, 444 changer transitions 137/846 dead transitions. [2024-11-09 02:24:31,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 846 transitions, 16970 flow [2024-11-09 02:24:31,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-11-09 02:24:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2024-11-09 02:24:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 698 transitions. [2024-11-09 02:24:31,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5102339181286549 [2024-11-09 02:24:31,930 INFO L175 Difference]: Start difference. First operand has 322 places, 423 transitions, 7427 flow. Second operand 57 states and 698 transitions. [2024-11-09 02:24:31,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 846 transitions, 16970 flow [2024-11-09 02:24:34,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 846 transitions, 14747 flow, removed 1059 selfloop flow, removed 22 redundant places. [2024-11-09 02:24:34,455 INFO L231 Difference]: Finished difference. Result has 372 places, 503 transitions, 9436 flow [2024-11-09 02:24:34,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=6480, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=374, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=9436, PETRI_PLACES=372, PETRI_TRANSITIONS=503} [2024-11-09 02:24:34,456 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 346 predicate places. [2024-11-09 02:24:34,457 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 503 transitions, 9436 flow [2024-11-09 02:24:34,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.205882352941177) internal successors, (245), 34 states have internal predecessors, (245), 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 02:24:34,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:34,457 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:34,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 02:24:34,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-09 02:24:34,660 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:34,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:34,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1955847245, now seen corresponding path program 9 times [2024-11-09 02:24:34,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:34,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759223732] [2024-11-09 02:24:34,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:34,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:35,022 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:35,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:35,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759223732] [2024-11-09 02:24:35,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759223732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:35,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692208677] [2024-11-09 02:24:35,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 02:24:35,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:35,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:35,027 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:35,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 02:24:35,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 02:24:35,091 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:35,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 02:24:35,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:35,207 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 1 proven. 223 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:35,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 224 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 02:24:35,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692208677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:35,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:35,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28 [2024-11-09 02:24:35,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347350210] [2024-11-09 02:24:35,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:35,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 02:24:35,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:35,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 02:24:35,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=672, Unknown=0, NotChecked=0, Total=812 [2024-11-09 02:24:35,523 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:35,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 503 transitions, 9436 flow. Second operand has 29 states, 29 states have (on average 7.344827586206897) internal successors, (213), 29 states have internal predecessors, (213), 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 02:24:35,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:35,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:35,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:40,036 INFO L124 PetriNetUnfolderBase]: 6205/11989 cut-off events. [2024-11-09 02:24:40,036 INFO L125 PetriNetUnfolderBase]: For 1415557/1415563 co-relation queries the response was YES. [2024-11-09 02:24:40,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94373 conditions, 11989 events. 6205/11989 cut-off events. For 1415557/1415563 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 78166 event pairs, 258 based on Foata normal form. 60/12048 useless extension candidates. Maximal degree in co-relation 94215. Up to 1947 conditions per place. [2024-11-09 02:24:40,250 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 219 selfloop transitions, 455 changer transitions 124/801 dead transitions. [2024-11-09 02:24:40,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 801 transitions, 17058 flow [2024-11-09 02:24:40,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-09 02:24:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2024-11-09 02:24:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 618 transitions. [2024-11-09 02:24:40,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5049019607843137 [2024-11-09 02:24:40,253 INFO L175 Difference]: Start difference. First operand has 372 places, 503 transitions, 9436 flow. Second operand 51 states and 618 transitions. [2024-11-09 02:24:40,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 801 transitions, 17058 flow [2024-11-09 02:24:43,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 801 transitions, 14925 flow, removed 832 selfloop flow, removed 36 redundant places. [2024-11-09 02:24:43,639 INFO L231 Difference]: Finished difference. Result has 390 places, 529 transitions, 10032 flow [2024-11-09 02:24:43,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7995, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=430, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=10032, PETRI_PLACES=390, PETRI_TRANSITIONS=529} [2024-11-09 02:24:43,640 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 364 predicate places. [2024-11-09 02:24:43,641 INFO L471 AbstractCegarLoop]: Abstraction has has 390 places, 529 transitions, 10032 flow [2024-11-09 02:24:43,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 7.344827586206897) internal successors, (213), 29 states have internal predecessors, (213), 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 02:24:43,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:43,641 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:43,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 02:24:43,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 02:24:43,843 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:43,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:43,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1667303893, now seen corresponding path program 10 times [2024-11-09 02:24:43,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:43,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142556221] [2024-11-09 02:24:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:43,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:44,289 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:44,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:44,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142556221] [2024-11-09 02:24:44,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142556221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:44,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589036713] [2024-11-09 02:24:44,290 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 02:24:44,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:44,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:44,292 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:44,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 02:24:44,359 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 02:24:44,359 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:44,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 02:24:44,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:44,465 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:44,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 02:24:44,814 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 0 proven. 226 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:24:44,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589036713] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 02:24:44,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 02:24:44,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 30 [2024-11-09 02:24:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444588930] [2024-11-09 02:24:44,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 02:24:44,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 02:24:44,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:44,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 02:24:44,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2024-11-09 02:24:44,854 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-09 02:24:44,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 529 transitions, 10032 flow. Second operand has 31 states, 31 states have (on average 7.129032258064516) internal successors, (221), 31 states have internal predecessors, (221), 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 02:24:44,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:44,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-09 02:24:44,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:24:49,447 INFO L124 PetriNetUnfolderBase]: 6268/12102 cut-off events. [2024-11-09 02:24:49,447 INFO L125 PetriNetUnfolderBase]: For 1552938/1552944 co-relation queries the response was YES. [2024-11-09 02:24:49,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97051 conditions, 12102 events. 6268/12102 cut-off events. For 1552938/1552944 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 78996 event pairs, 58 based on Foata normal form. 123/12224 useless extension candidates. Maximal degree in co-relation 96890. Up to 1971 conditions per place. [2024-11-09 02:24:49,651 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 248 selfloop transitions, 488 changer transitions 151/890 dead transitions. [2024-11-09 02:24:49,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 890 transitions, 18980 flow [2024-11-09 02:24:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-09 02:24:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2024-11-09 02:24:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 705 transitions. [2024-11-09 02:24:49,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5064655172413793 [2024-11-09 02:24:49,656 INFO L175 Difference]: Start difference. First operand has 390 places, 529 transitions, 10032 flow. Second operand 58 states and 705 transitions. [2024-11-09 02:24:49,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 890 transitions, 18980 flow [2024-11-09 02:24:53,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 890 transitions, 17574 flow, removed 534 selfloop flow, removed 25 redundant places. [2024-11-09 02:24:53,219 INFO L231 Difference]: Finished difference. Result has 433 places, 542 transitions, 11075 flow [2024-11-09 02:24:53,220 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9020, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=529, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=476, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=11075, PETRI_PLACES=433, PETRI_TRANSITIONS=542} [2024-11-09 02:24:53,220 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 407 predicate places. [2024-11-09 02:24:53,220 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 542 transitions, 11075 flow [2024-11-09 02:24:53,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.129032258064516) internal successors, (221), 31 states have internal predecessors, (221), 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 02:24:53,221 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:24:53,221 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:24:53,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 02:24:53,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 02:24:53,422 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-09 02:24:53,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:24:53,422 INFO L85 PathProgramCache]: Analyzing trace with hash 978588567, now seen corresponding path program 11 times [2024-11-09 02:24:53,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:24:53,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583629795] [2024-11-09 02:24:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:24:53,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:24:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:24:53,613 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 244 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:53,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:24:53,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583629795] [2024-11-09 02:24:53,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583629795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 02:24:53,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631138531] [2024-11-09 02:24:53,614 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 02:24:53,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 02:24:53,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:24:53,617 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 02:24:53,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 02:24:53,680 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2024-11-09 02:24:53,680 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 02:24:53,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 02:24:53,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 02:24:53,756 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 02:24:53,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 02:24:53,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631138531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:24:53,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 02:24:53,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 14 [2024-11-09 02:24:53,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770171216] [2024-11-09 02:24:53,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:24:53,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 02:24:53,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:24:53,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 02:24:53,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2024-11-09 02:24:53,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 24 [2024-11-09 02:24:53,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 542 transitions, 11075 flow. Second operand has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 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 02:24:53,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:24:53,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 24 [2024-11-09 02:24:53,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:25:07,192 INFO L124 PetriNetUnfolderBase]: 21242/41350 cut-off events. [2024-11-09 02:25:07,192 INFO L125 PetriNetUnfolderBase]: For 5169899/5173450 co-relation queries the response was YES. [2024-11-09 02:25:08,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279447 conditions, 41350 events. 21242/41350 cut-off events. For 5169899/5173450 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 378378 event pairs, 972 based on Foata normal form. 815/37429 useless extension candidates. Maximal degree in co-relation 279282. Up to 6717 conditions per place. [2024-11-09 02:25:08,839 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 0 selfloop transitions, 0 changer transitions 602/602 dead transitions. [2024-11-09 02:25:08,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 602 transitions, 10122 flow [2024-11-09 02:25:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 02:25:08,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 02:25:08,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 237 transitions. [2024-11-09 02:25:08,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7596153846153846 [2024-11-09 02:25:08,840 INFO L175 Difference]: Start difference. First operand has 433 places, 542 transitions, 11075 flow. Second operand 13 states and 237 transitions. [2024-11-09 02:25:08,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 602 transitions, 10122 flow [2024-11-09 02:25:13,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 602 transitions, 8494 flow, removed 197 selfloop flow, removed 74 redundant places. [2024-11-09 02:25:13,401 INFO L231 Difference]: Finished difference. Result has 355 places, 0 transitions, 0 flow [2024-11-09 02:25:13,401 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=8072, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=0, PETRI_PLACES=355, PETRI_TRANSITIONS=0} [2024-11-09 02:25:13,402 INFO L277 CegarLoopForPetriNet]: 26 programPoint places, 329 predicate places. [2024-11-09 02:25:13,402 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 0 transitions, 0 flow [2024-11-09 02:25:13,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.846153846153847) internal successors, (167), 13 states have internal predecessors, (167), 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 02:25:13,404 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-09 02:25:13,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-09 02:25:13,405 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-09 02:25:13,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 02:25:13,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 02:25:13,606 INFO L407 BasicCegarLoop]: Path program histogram: [11, 3, 2, 1, 1] [2024-11-09 02:25:13,610 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:25:13,610 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:25:13,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:25:13 BasicIcfg [2024-11-09 02:25:13,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:25:13,615 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:25:13,615 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:25:13,615 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:25:13,616 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:23:56" (3/4) ... [2024-11-09 02:25:13,618 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:25:13,621 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2024-11-09 02:25:13,621 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2024-11-09 02:25:13,624 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-09 02:25:13,624 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 02:25:13,624 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 02:25:13,624 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 02:25:13,707 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:25:13,707 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:25:13,707 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:25:13,708 INFO L158 Benchmark]: Toolchain (without parser) took 78476.69ms. Allocated memory was 190.8MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 121.2MB in the beginning and 9.6GB in the end (delta: -9.4GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-11-09 02:25:13,709 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:25:13,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.49ms. Allocated memory is still 190.8MB. Free memory was 121.0MB in the beginning and 156.7MB in the end (delta: -35.7MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2024-11-09 02:25:13,709 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.87ms. Allocated memory is still 190.8MB. Free memory was 155.9MB in the beginning and 154.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:25:13,709 INFO L158 Benchmark]: Boogie Preprocessor took 64.56ms. Allocated memory is still 190.8MB. Free memory was 154.7MB in the beginning and 152.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:25:13,710 INFO L158 Benchmark]: RCFGBuilder took 443.05ms. Allocated memory is still 190.8MB. Free memory was 152.6MB in the beginning and 134.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 02:25:13,711 INFO L158 Benchmark]: TraceAbstraction took 77185.36ms. Allocated memory was 190.8MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 133.8MB in the beginning and 9.6GB in the end (delta: -9.4GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. [2024-11-09 02:25:13,711 INFO L158 Benchmark]: Witness Printer took 92.61ms. Allocated memory is still 12.6GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 02:25:13,713 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 76.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.49ms. Allocated memory is still 190.8MB. Free memory was 121.0MB in the beginning and 156.7MB in the end (delta: -35.7MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.87ms. Allocated memory is still 190.8MB. Free memory was 155.9MB in the beginning and 154.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.56ms. Allocated memory is still 190.8MB. Free memory was 154.7MB in the beginning and 152.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.05ms. Allocated memory is still 190.8MB. Free memory was 152.6MB in the beginning and 134.5MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 77185.36ms. Allocated memory was 190.8MB in the beginning and 12.6GB in the end (delta: 12.4GB). Free memory was 133.8MB in the beginning and 9.6GB in the end (delta: -9.4GB). Peak memory consumption was 3.1GB. Max. memory is 16.1GB. * Witness Printer took 92.61ms. Allocated memory is still 12.6GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 722]: 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 5 procedures, 34 locations, 3 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: 77.1s, OverallIterations: 18, TraceHistogramMax: 11, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 64.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6622 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6594 mSDsluCounter, 328 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 315 mSDsCounter, 403 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7659 IncrementalHoareTripleChecker+Invalid, 8062 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 403 mSolverCounterUnsat, 13 mSDtfsCounter, 7659 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1731 GetRequests, 977 SyntacticMatches, 36 SemanticMatches, 718 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12302 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11075occurred in iteration=17, InterpolantAutomatonStates: 525, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 1260 NumberOfCodeBlocks, 1260 NumberOfCodeBlocksAsserted, 79 NumberOfCheckSat, 1738 ConstructedInterpolants, 0 QuantifiedInterpolants, 7686 SizeOfPredicates, 143 NumberOfNonLiveVariables, 1693 ConjunctsInSsa, 210 ConjunctsInUnsatCore, 41 InterpolantComputations, 7 PerfectInterpolantSequences, 569/4636 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 02:25:13,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...