./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/triangular-longer-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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-2.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 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:02:34,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:02:35,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 08:02:35,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:02:35,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:02:35,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:02:35,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:02:35,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:02:35,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:02:35,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:02:35,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:02:35,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:02:35,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:02:35,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:02:35,063 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:02:35,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:02:35,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:02:35,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 08:02:35,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:02:35,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 08:02:35,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:02:35,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:02:35,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:02:35,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:02:35,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:02:35,069 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 08:02:35,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:02:35,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:02:35,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:02:35,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:02:35,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:02:35,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:02:35,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:02:35,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:02:35,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:02:35,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:02:35,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:02:35,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:02:35,072 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:02:35,072 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:02:35,072 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:02:35,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:02:35,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 647bb9f2bc4e44b8324ce986a0773d034e56e6ec110a9fd5233f5c8c0dbbeb10 [2024-11-12 08:02:35,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:02:35,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:02:35,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:02:35,357 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:02:35,357 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:02:35,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-12 08:02:36,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:02:37,053 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:02:37,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/triangular-longer-2.i [2024-11-12 08:02:37,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4df9f38/9849e8372bfc44bf854a8dab44f44729/FLAGd24e28406 [2024-11-12 08:02:37,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce4df9f38/9849e8372bfc44bf854a8dab44f44729 [2024-11-12 08:02:37,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:02:37,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:02:37,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:02:37,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:02:37,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:02:37,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1540a3bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37, skipping insertion in model container [2024-11-12 08:02:37,096 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:02:37,532 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-2.i[30963,30976] [2024-11-12 08:02:37,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:02:37,548 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:02:37,590 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-2.i[30963,30976] [2024-11-12 08:02:37,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:02:37,634 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:02:37,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37 WrapperNode [2024-11-12 08:02:37,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:02:37,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:02:37,637 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:02:37,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:02:37,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,692 INFO L138 Inliner]: procedures = 168, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2024-11-12 08:02:37,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:02:37,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:02:37,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:02:37,695 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:02:37,704 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,725 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]. [2024-11-12 08:02:37,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,733 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:02:37,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:02:37,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:02:37,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:02:37,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (1/1) ... [2024-11-12 08:02:37,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:02:37,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:37,785 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) [2024-11-12 08:02:37,787 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 [2024-11-12 08:02:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-11-12 08:02:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-11-12 08:02:37,830 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-11-12 08:02:37,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-11-12 08:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 08:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 08:02:37,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:02:37,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:02:37,833 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 08:02:37,989 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:02:37,991 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:02:38,113 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 08:02:38,113 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:02:38,203 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:02:38,204 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-12 08:02:38,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:02:38 BoogieIcfgContainer [2024-11-12 08:02:38,204 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:02:38,206 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:02:38,207 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:02:38,210 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:02:38,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:02:37" (1/3) ... [2024-11-12 08:02:38,211 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3daadaa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:02:38, skipping insertion in model container [2024-11-12 08:02:38,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:02:37" (2/3) ... [2024-11-12 08:02:38,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3daadaa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:02:38, skipping insertion in model container [2024-11-12 08:02:38,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:02:38" (3/3) ... [2024-11-12 08:02:38,213 INFO L112 eAbstractionObserver]: Analyzing ICFG triangular-longer-2.i [2024-11-12 08:02:38,231 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:02:38,232 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:02:38,232 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 08:02:38,283 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 08:02:38,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 56 flow [2024-11-12 08:02:38,354 INFO L124 PetriNetUnfolderBase]: 3/22 cut-off events. [2024-11-12 08:02:38,355 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 08:02:38,358 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. [2024-11-12 08:02:38,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 24 transitions, 56 flow [2024-11-12 08:02:38,364 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 50 flow [2024-11-12 08:02:38,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:02:38,388 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;@6187aace, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:02:38,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-12 08:02:38,402 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 08:02:38,404 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-11-12 08:02:38,404 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 08:02:38,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:38,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:38,406 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:38,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash 762204344, now seen corresponding path program 1 times [2024-11-12 08:02:38,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:38,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431651527] [2024-11-12 08:02:38,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:38,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:38,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:38,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431651527] [2024-11-12 08:02:38,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431651527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:38,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:38,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 08:02:38,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304021881] [2024-11-12 08:02:38,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:38,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 08:02:38,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:38,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 08:02:38,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 08:02:38,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:38,925 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) [2024-11-12 08:02:38,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:38,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:38,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:39,249 INFO L124 PetriNetUnfolderBase]: 385/647 cut-off events. [2024-11-12 08:02:39,250 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 08:02:39,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1261 conditions, 647 events. 385/647 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2667 event pairs, 57 based on Foata normal form. 15/646 useless extension candidates. Maximal degree in co-relation 1251. Up to 303 conditions per place. [2024-11-12 08:02:39,261 INFO L140 encePairwiseOnDemand]: 15/24 looper letters, 29 selfloop transitions, 7 changer transitions 31/70 dead transitions. [2024-11-12 08:02:39,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 70 transitions, 283 flow [2024-11-12 08:02:39,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 08:02:39,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 08:02:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 111 transitions. [2024-11-12 08:02:39,278 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.578125 [2024-11-12 08:02:39,280 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 8 states and 111 transitions. [2024-11-12 08:02:39,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 70 transitions, 283 flow [2024-11-12 08:02:39,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 70 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 08:02:39,289 INFO L231 Difference]: Finished difference. Result has 37 places, 25 transitions, 97 flow [2024-11-12 08:02:39,291 INFO L262 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=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=97, PETRI_PLACES=37, PETRI_TRANSITIONS=25} [2024-11-12 08:02:39,296 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 11 predicate places. [2024-11-12 08:02:39,296 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 25 transitions, 97 flow [2024-11-12 08:02:39,297 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) [2024-11-12 08:02:39,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:39,297 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:39,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:02:39,298 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:39,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash -517073457, now seen corresponding path program 1 times [2024-11-12 08:02:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619286862] [2024-11-12 08:02:39,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:39,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:39,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619286862] [2024-11-12 08:02:39,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619286862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:39,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:39,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:02:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687899572] [2024-11-12 08:02:39,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:39,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:02:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:02:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:02:39,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:39,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 25 transitions, 97 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) [2024-11-12 08:02:39,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:39,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:39,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:39,682 INFO L124 PetriNetUnfolderBase]: 247/446 cut-off events. [2024-11-12 08:02:39,682 INFO L125 PetriNetUnfolderBase]: For 416/422 co-relation queries the response was YES. [2024-11-12 08:02:39,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 446 events. 247/446 cut-off events. For 416/422 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1792 event pairs, 63 based on Foata normal form. 24/467 useless extension candidates. Maximal degree in co-relation 1158. Up to 190 conditions per place. [2024-11-12 08:02:39,688 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 27 selfloop transitions, 8 changer transitions 15/53 dead transitions. [2024-11-12 08:02:39,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 53 transitions, 291 flow [2024-11-12 08:02:39,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 08:02:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 08:02:39,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 76 transitions. [2024-11-12 08:02:39,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-11-12 08:02:39,691 INFO L175 Difference]: Start difference. First operand has 37 places, 25 transitions, 97 flow. Second operand 6 states and 76 transitions. [2024-11-12 08:02:39,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 53 transitions, 291 flow [2024-11-12 08:02:39,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 53 transitions, 287 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-12 08:02:39,698 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 141 flow [2024-11-12 08:02:39,699 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=141, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2024-11-12 08:02:39,700 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2024-11-12 08:02:39,700 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 141 flow [2024-11-12 08:02:39,701 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) [2024-11-12 08:02:39,701 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:39,701 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:39,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 08:02:39,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:39,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:39,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1754207660, now seen corresponding path program 1 times [2024-11-12 08:02:39,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:39,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675366197] [2024-11-12 08:02:39,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:39,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:39,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:39,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675366197] [2024-11-12 08:02:39,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675366197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:39,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:39,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:02:39,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577849638] [2024-11-12 08:02:39,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:39,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:02:39,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:39,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:02:39,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:02:39,858 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:39,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 141 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) [2024-11-12 08:02:39,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:39,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:39,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:40,092 INFO L124 PetriNetUnfolderBase]: 391/713 cut-off events. [2024-11-12 08:02:40,093 INFO L125 PetriNetUnfolderBase]: For 1184/1190 co-relation queries the response was YES. [2024-11-12 08:02:40,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2118 conditions, 713 events. 391/713 cut-off events. For 1184/1190 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3059 event pairs, 89 based on Foata normal form. 33/745 useless extension candidates. Maximal degree in co-relation 2098. Up to 264 conditions per place. [2024-11-12 08:02:40,100 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 47 selfloop transitions, 11 changer transitions 20/81 dead transitions. [2024-11-12 08:02:40,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 81 transitions, 515 flow [2024-11-12 08:02:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-12 08:02:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-12 08:02:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 117 transitions. [2024-11-12 08:02:40,102 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-12 08:02:40,102 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 141 flow. Second operand 9 states and 117 transitions. [2024-11-12 08:02:40,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 81 transitions, 515 flow [2024-11-12 08:02:40,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 81 transitions, 473 flow, removed 20 selfloop flow, removed 3 redundant places. [2024-11-12 08:02:40,113 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 237 flow [2024-11-12 08:02:40,113 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=237, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2024-11-12 08:02:40,114 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 23 predicate places. [2024-11-12 08:02:40,115 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 237 flow [2024-11-12 08:02:40,115 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) [2024-11-12 08:02:40,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:40,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:40,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 08:02:40,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:40,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash -2024183696, now seen corresponding path program 2 times [2024-11-12 08:02:40,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:40,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062246918] [2024-11-12 08:02:40,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:40,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:40,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:40,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:40,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062246918] [2024-11-12 08:02:40,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062246918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:40,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:40,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 08:02:40,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779994690] [2024-11-12 08:02:40,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:40,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 08:02:40,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:40,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 08:02:40,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 08:02:40,318 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:40,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 237 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) [2024-11-12 08:02:40,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:40,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:40,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:40,525 INFO L124 PetriNetUnfolderBase]: 328/608 cut-off events. [2024-11-12 08:02:40,525 INFO L125 PetriNetUnfolderBase]: For 1943/1949 co-relation queries the response was YES. [2024-11-12 08:02:40,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2046 conditions, 608 events. 328/608 cut-off events. For 1943/1949 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2541 event pairs, 89 based on Foata normal form. 51/658 useless extension candidates. Maximal degree in co-relation 2020. Up to 234 conditions per place. [2024-11-12 08:02:40,530 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 38 selfloop transitions, 11 changer transitions 28/80 dead transitions. [2024-11-12 08:02:40,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 609 flow [2024-11-12 08:02:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 08:02:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-12 08:02:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2024-11-12 08:02:40,533 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5364583333333334 [2024-11-12 08:02:40,534 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 237 flow. Second operand 8 states and 103 transitions. [2024-11-12 08:02:40,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 609 flow [2024-11-12 08:02:40,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 80 transitions, 565 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-12 08:02:40,542 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 268 flow [2024-11-12 08:02:40,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=268, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2024-11-12 08:02:40,544 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 30 predicate places. [2024-11-12 08:02:40,544 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 268 flow [2024-11-12 08:02:40,545 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) [2024-11-12 08:02:40,545 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:40,545 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:40,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 08:02:40,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:40,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:40,547 INFO L85 PathProgramCache]: Analyzing trace with hash 134530067, now seen corresponding path program 1 times [2024-11-12 08:02:40,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:40,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921545769] [2024-11-12 08:02:40,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:40,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:40,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:40,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921545769] [2024-11-12 08:02:40,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921545769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:40,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:40,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:02:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144066750] [2024-11-12 08:02:40,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:40,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 08:02:40,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:40,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 08:02:40,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-12 08:02:40,690 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:40,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 268 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) [2024-11-12 08:02:40,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:40,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:40,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:40,939 INFO L124 PetriNetUnfolderBase]: 463/851 cut-off events. [2024-11-12 08:02:40,940 INFO L125 PetriNetUnfolderBase]: For 4064/4070 co-relation queries the response was YES. [2024-11-12 08:02:40,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3166 conditions, 851 events. 463/851 cut-off events. For 4064/4070 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3751 event pairs, 65 based on Foata normal form. 33/881 useless extension candidates. Maximal degree in co-relation 3135. Up to 181 conditions per place. [2024-11-12 08:02:40,948 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 54 selfloop transitions, 20 changer transitions 23/100 dead transitions. [2024-11-12 08:02:40,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 100 transitions, 818 flow [2024-11-12 08:02:40,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 08:02:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-12 08:02:40,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 141 transitions. [2024-11-12 08:02:40,950 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5340909090909091 [2024-11-12 08:02:40,950 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 268 flow. Second operand 11 states and 141 transitions. [2024-11-12 08:02:40,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 100 transitions, 818 flow [2024-11-12 08:02:40,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 100 transitions, 723 flow, removed 38 selfloop flow, removed 7 redundant places. [2024-11-12 08:02:40,980 INFO L231 Difference]: Finished difference. Result has 63 places, 42 transitions, 378 flow [2024-11-12 08:02:40,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=378, PETRI_PLACES=63, PETRI_TRANSITIONS=42} [2024-11-12 08:02:40,986 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 37 predicate places. [2024-11-12 08:02:40,987 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 42 transitions, 378 flow [2024-11-12 08:02:40,987 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) [2024-11-12 08:02:40,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:40,988 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:40,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 08:02:40,988 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:40,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:40,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1091700605, now seen corresponding path program 2 times [2024-11-12 08:02:40,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:40,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016956849] [2024-11-12 08:02:40,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:40,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:41,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:41,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:41,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016956849] [2024-11-12 08:02:41,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016956849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:41,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:41,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:02:41,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358232813] [2024-11-12 08:02:41,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:41,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 08:02:41,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:41,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 08:02:41,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 08:02:41,142 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:41,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 42 transitions, 378 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) [2024-11-12 08:02:41,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:41,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:41,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:41,387 INFO L124 PetriNetUnfolderBase]: 400/749 cut-off events. [2024-11-12 08:02:41,387 INFO L125 PetriNetUnfolderBase]: For 5302/5308 co-relation queries the response was YES. [2024-11-12 08:02:41,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3037 conditions, 749 events. 400/749 cut-off events. For 5302/5308 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3284 event pairs, 65 based on Foata normal form. 51/797 useless extension candidates. Maximal degree in co-relation 3003. Up to 151 conditions per place. [2024-11-12 08:02:41,395 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 41 selfloop transitions, 20 changer transitions 31/95 dead transitions. [2024-11-12 08:02:41,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 95 transitions, 902 flow [2024-11-12 08:02:41,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 08:02:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-12 08:02:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 125 transitions. [2024-11-12 08:02:41,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-12 08:02:41,396 INFO L175 Difference]: Start difference. First operand has 63 places, 42 transitions, 378 flow. Second operand 10 states and 125 transitions. [2024-11-12 08:02:41,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 95 transitions, 902 flow [2024-11-12 08:02:41,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 95 transitions, 793 flow, removed 45 selfloop flow, removed 6 redundant places. [2024-11-12 08:02:41,408 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 398 flow [2024-11-12 08:02:41,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2024-11-12 08:02:41,411 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 42 predicate places. [2024-11-12 08:02:41,412 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 398 flow [2024-11-12 08:02:41,412 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) [2024-11-12 08:02:41,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:41,412 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:41,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 08:02:41,413 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:41,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:41,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1063992253, now seen corresponding path program 3 times [2024-11-12 08:02:41,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:41,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985657020] [2024-11-12 08:02:41,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:41,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:41,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:41,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:41,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985657020] [2024-11-12 08:02:41,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985657020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:02:41,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:02:41,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-12 08:02:41,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471527234] [2024-11-12 08:02:41,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:02:41,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 08:02:41,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:41,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 08:02:41,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-12 08:02:41,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:41,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 43 transitions, 398 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) [2024-11-12 08:02:41,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:41,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:41,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:41,802 INFO L124 PetriNetUnfolderBase]: 409/755 cut-off events. [2024-11-12 08:02:41,802 INFO L125 PetriNetUnfolderBase]: For 5090/5096 co-relation queries the response was YES. [2024-11-12 08:02:41,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3064 conditions, 755 events. 409/755 cut-off events. For 5090/5096 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3374 event pairs, 116 based on Foata normal form. 24/778 useless extension candidates. Maximal degree in co-relation 3028. Up to 363 conditions per place. [2024-11-12 08:02:41,807 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 52 selfloop transitions, 16 changer transitions 25/96 dead transitions. [2024-11-12 08:02:41,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 96 transitions, 882 flow [2024-11-12 08:02:41,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-12 08:02:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-12 08:02:41,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 135 transitions. [2024-11-12 08:02:41,809 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-11-12 08:02:41,809 INFO L175 Difference]: Start difference. First operand has 68 places, 43 transitions, 398 flow. Second operand 11 states and 135 transitions. [2024-11-12 08:02:41,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 96 transitions, 882 flow [2024-11-12 08:02:41,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 96 transitions, 798 flow, removed 26 selfloop flow, removed 8 redundant places. [2024-11-12 08:02:41,820 INFO L231 Difference]: Finished difference. Result has 71 places, 46 transitions, 433 flow [2024-11-12 08:02:41,820 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=433, PETRI_PLACES=71, PETRI_TRANSITIONS=46} [2024-11-12 08:02:41,821 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 45 predicate places. [2024-11-12 08:02:41,821 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 46 transitions, 433 flow [2024-11-12 08:02:41,821 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) [2024-11-12 08:02:41,821 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:41,821 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:41,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 08:02:41,822 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:41,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:41,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1423899474, now seen corresponding path program 1 times [2024-11-12 08:02:41,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:41,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423089741] [2024-11-12 08:02:41,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:41,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:41,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:41,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423089741] [2024-11-12 08:02:41,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423089741] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:41,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643163969] [2024-11-12 08:02:41,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:41,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:41,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:41,963 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) [2024-11-12 08:02:41,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 08:02:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:42,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 08:02:42,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:42,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:42,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:42,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643163969] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:42,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:42,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-12 08:02:42,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610277852] [2024-11-12 08:02:42,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:42,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 08:02:42,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:42,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 08:02:42,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-12 08:02:42,295 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:42,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 46 transitions, 433 flow. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 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) [2024-11-12 08:02:42,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:42,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:42,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:42,821 INFO L124 PetriNetUnfolderBase]: 643/1166 cut-off events. [2024-11-12 08:02:42,822 INFO L125 PetriNetUnfolderBase]: For 9744/9750 co-relation queries the response was YES. [2024-11-12 08:02:42,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4981 conditions, 1166 events. 643/1166 cut-off events. For 9744/9750 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5061 event pairs, 59 based on Foata normal form. 51/1214 useless extension candidates. Maximal degree in co-relation 4944. Up to 207 conditions per place. [2024-11-12 08:02:42,830 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 66 selfloop transitions, 35 changer transitions 56/160 dead transitions. [2024-11-12 08:02:42,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 160 transitions, 1559 flow [2024-11-12 08:02:42,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-12 08:02:42,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-12 08:02:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 236 transitions. [2024-11-12 08:02:42,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-12 08:02:42,835 INFO L175 Difference]: Start difference. First operand has 71 places, 46 transitions, 433 flow. Second operand 19 states and 236 transitions. [2024-11-12 08:02:42,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 160 transitions, 1559 flow [2024-11-12 08:02:42,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 160 transitions, 1482 flow, removed 28 selfloop flow, removed 7 redundant places. [2024-11-12 08:02:42,851 INFO L231 Difference]: Finished difference. Result has 90 places, 62 transitions, 781 flow [2024-11-12 08:02:42,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=781, PETRI_PLACES=90, PETRI_TRANSITIONS=62} [2024-11-12 08:02:42,854 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 64 predicate places. [2024-11-12 08:02:42,854 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 62 transitions, 781 flow [2024-11-12 08:02:42,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 14 states have internal predecessors, (99), 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) [2024-11-12 08:02:42,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:42,855 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:42,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-12 08:02:43,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:43,064 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:43,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1514895422, now seen corresponding path program 1 times [2024-11-12 08:02:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:43,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576134755] [2024-11-12 08:02:43,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:43,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:43,263 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:43,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:43,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576134755] [2024-11-12 08:02:43,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576134755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:43,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037647453] [2024-11-12 08:02:43,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:43,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:43,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:43,267 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) [2024-11-12 08:02:43,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 08:02:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:43,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 08:02:43,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:43,422 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:43,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:43,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037647453] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:43,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:43,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-12 08:02:43,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29349071] [2024-11-12 08:02:43,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:43,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 08:02:43,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:43,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 08:02:43,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-11-12 08:02:43,694 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:43,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 62 transitions, 781 flow. Second operand has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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) [2024-11-12 08:02:43,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:43,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:43,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:44,415 INFO L124 PetriNetUnfolderBase]: 841/1577 cut-off events. [2024-11-12 08:02:44,415 INFO L125 PetriNetUnfolderBase]: For 23238/23244 co-relation queries the response was YES. [2024-11-12 08:02:44,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7809 conditions, 1577 events. 841/1577 cut-off events. For 23238/23244 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 6922 event pairs, 215 based on Foata normal form. 87/1663 useless extension candidates. Maximal degree in co-relation 7765. Up to 756 conditions per place. [2024-11-12 08:02:44,428 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 95 selfloop transitions, 25 changer transitions 89/212 dead transitions. [2024-11-12 08:02:44,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 212 transitions, 2565 flow [2024-11-12 08:02:44,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-12 08:02:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-12 08:02:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 301 transitions. [2024-11-12 08:02:44,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5016666666666667 [2024-11-12 08:02:44,430 INFO L175 Difference]: Start difference. First operand has 90 places, 62 transitions, 781 flow. Second operand 25 states and 301 transitions. [2024-11-12 08:02:44,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 212 transitions, 2565 flow [2024-11-12 08:02:44,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 212 transitions, 2040 flow, removed 249 selfloop flow, removed 10 redundant places. [2024-11-12 08:02:44,466 INFO L231 Difference]: Finished difference. Result has 118 places, 76 transitions, 882 flow [2024-11-12 08:02:44,466 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=882, PETRI_PLACES=118, PETRI_TRANSITIONS=76} [2024-11-12 08:02:44,467 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 92 predicate places. [2024-11-12 08:02:44,467 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 76 transitions, 882 flow [2024-11-12 08:02:44,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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) [2024-11-12 08:02:44,467 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:44,467 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:44,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 08:02:44,668 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,SelfDestructingSolverStorable8 [2024-11-12 08:02:44,669 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:44,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2021366800, now seen corresponding path program 2 times [2024-11-12 08:02:44,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:44,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468272144] [2024-11-12 08:02:44,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:44,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:44,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468272144] [2024-11-12 08:02:44,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468272144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:44,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383713331] [2024-11-12 08:02:44,852 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 08:02:44,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:44,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:44,854 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) [2024-11-12 08:02:44,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 08:02:44,922 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 08:02:44,923 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:02:44,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 08:02:44,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:44,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:45,164 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:45,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383713331] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:45,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:45,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-12 08:02:45,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081093200] [2024-11-12 08:02:45,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:45,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 08:02:45,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:45,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 08:02:45,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-11-12 08:02:45,183 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:45,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 76 transitions, 882 flow. Second operand has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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) [2024-11-12 08:02:45,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:45,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:45,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:46,161 INFO L124 PetriNetUnfolderBase]: 1435/2711 cut-off events. [2024-11-12 08:02:46,162 INFO L125 PetriNetUnfolderBase]: For 73809/73815 co-relation queries the response was YES. [2024-11-12 08:02:46,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15196 conditions, 2711 events. 1435/2711 cut-off events. For 73809/73815 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14454 event pairs, 136 based on Foata normal form. 87/2797 useless extension candidates. Maximal degree in co-relation 15139. Up to 501 conditions per place. [2024-11-12 08:02:46,189 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 127 selfloop transitions, 80 changer transitions 91/301 dead transitions. [2024-11-12 08:02:46,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 301 transitions, 4066 flow [2024-11-12 08:02:46,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-12 08:02:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-12 08:02:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 393 transitions. [2024-11-12 08:02:46,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.51171875 [2024-11-12 08:02:46,192 INFO L175 Difference]: Start difference. First operand has 118 places, 76 transitions, 882 flow. Second operand 32 states and 393 transitions. [2024-11-12 08:02:46,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 301 transitions, 4066 flow [2024-11-12 08:02:46,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 301 transitions, 3452 flow, removed 299 selfloop flow, removed 13 redundant places. [2024-11-12 08:02:46,269 INFO L231 Difference]: Finished difference. Result has 150 places, 119 transitions, 1713 flow [2024-11-12 08:02:46,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=1713, PETRI_PLACES=150, PETRI_TRANSITIONS=119} [2024-11-12 08:02:46,270 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 124 predicate places. [2024-11-12 08:02:46,270 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 119 transitions, 1713 flow [2024-11-12 08:02:46,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.294117647058823) internal successors, (124), 17 states have internal predecessors, (124), 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) [2024-11-12 08:02:46,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:46,271 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:46,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 08:02:46,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:46,472 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:46,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash -983284332, now seen corresponding path program 3 times [2024-11-12 08:02:46,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:46,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666506227] [2024-11-12 08:02:46,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:46,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:46,610 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:46,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:46,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666506227] [2024-11-12 08:02:46,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666506227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:46,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781241767] [2024-11-12 08:02:46,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 08:02:46,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:46,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:46,613 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) [2024-11-12 08:02:46,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 08:02:46,692 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-12 08:02:46,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:02:46,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 08:02:46,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:46,751 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:46,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:46,886 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:46,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781241767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:46,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:46,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-12 08:02:46,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890298231] [2024-11-12 08:02:46,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:46,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-12 08:02:46,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:46,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-12 08:02:46,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-12 08:02:46,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:46,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 119 transitions, 1713 flow. Second operand has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 08:02:46,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:46,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:46,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:48,333 INFO L124 PetriNetUnfolderBase]: 1822/3429 cut-off events. [2024-11-12 08:02:48,333 INFO L125 PetriNetUnfolderBase]: For 164399/164405 co-relation queries the response was YES. [2024-11-12 08:02:48,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22480 conditions, 3429 events. 1822/3429 cut-off events. For 164399/164405 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 19256 event pairs, 58 based on Foata normal form. 123/3551 useless extension candidates. Maximal degree in co-relation 22408. Up to 657 conditions per place. [2024-11-12 08:02:48,369 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 124 selfloop transitions, 121 changer transitions 115/363 dead transitions. [2024-11-12 08:02:48,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 363 transitions, 6090 flow [2024-11-12 08:02:48,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-12 08:02:48,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2024-11-12 08:02:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 443 transitions. [2024-11-12 08:02:48,372 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5127314814814815 [2024-11-12 08:02:48,372 INFO L175 Difference]: Start difference. First operand has 150 places, 119 transitions, 1713 flow. Second operand 36 states and 443 transitions. [2024-11-12 08:02:48,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 363 transitions, 6090 flow [2024-11-12 08:02:48,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 363 transitions, 5182 flow, removed 440 selfloop flow, removed 16 redundant places. [2024-11-12 08:02:48,648 INFO L231 Difference]: Finished difference. Result has 183 places, 154 transitions, 2571 flow [2024-11-12 08:02:48,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=1355, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=2571, PETRI_PLACES=183, PETRI_TRANSITIONS=154} [2024-11-12 08:02:48,650 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 157 predicate places. [2024-11-12 08:02:48,650 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 154 transitions, 2571 flow [2024-11-12 08:02:48,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 08:02:48,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:48,650 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:48,670 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 08:02:48,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:48,851 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:48,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:48,852 INFO L85 PathProgramCache]: Analyzing trace with hash 2083707491, now seen corresponding path program 4 times [2024-11-12 08:02:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:48,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798565121] [2024-11-12 08:02:48,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:48,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:49,038 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:49,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798565121] [2024-11-12 08:02:49,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798565121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:49,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070543107] [2024-11-12 08:02:49,039 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 08:02:49,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:49,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:49,041 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) [2024-11-12 08:02:49,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 08:02:49,101 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 08:02:49,102 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:02:49,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 08:02:49,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:49,232 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:49,232 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:49,445 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:02:49,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070543107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:49,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:49,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2024-11-12 08:02:49,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080822841] [2024-11-12 08:02:49,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:49,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-12 08:02:49,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:49,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-12 08:02:49,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2024-11-12 08:02:49,513 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:49,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 154 transitions, 2571 flow. Second operand has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 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) [2024-11-12 08:02:49,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:49,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:49,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:51,736 INFO L124 PetriNetUnfolderBase]: 2632/4896 cut-off events. [2024-11-12 08:02:51,737 INFO L125 PetriNetUnfolderBase]: For 356048/356054 co-relation queries the response was YES. [2024-11-12 08:02:51,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38206 conditions, 4896 events. 2632/4896 cut-off events. For 356048/356054 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 26536 event pairs, 89 based on Foata normal form. 105/4998 useless extension candidates. Maximal degree in co-relation 38120. Up to 975 conditions per place. [2024-11-12 08:02:51,790 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 164 selfloop transitions, 176 changer transitions 146/489 dead transitions. [2024-11-12 08:02:51,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 489 transitions, 10254 flow [2024-11-12 08:02:51,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-12 08:02:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2024-11-12 08:02:51,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 602 transitions. [2024-11-12 08:02:51,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2024-11-12 08:02:51,793 INFO L175 Difference]: Start difference. First operand has 183 places, 154 transitions, 2571 flow. Second operand 49 states and 602 transitions. [2024-11-12 08:02:51,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 489 transitions, 10254 flow [2024-11-12 08:02:52,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 489 transitions, 8546 flow, removed 824 selfloop flow, removed 20 redundant places. [2024-11-12 08:02:52,233 INFO L231 Difference]: Finished difference. Result has 233 places, 215 transitions, 4157 flow [2024-11-12 08:02:52,233 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=2001, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=49, PETRI_FLOW=4157, PETRI_PLACES=233, PETRI_TRANSITIONS=215} [2024-11-12 08:02:52,234 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 207 predicate places. [2024-11-12 08:02:52,234 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 215 transitions, 4157 flow [2024-11-12 08:02:52,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 7.08) internal successors, (177), 25 states have internal predecessors, (177), 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) [2024-11-12 08:02:52,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:52,235 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:52,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 08:02:52,436 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,SelfDestructingSolverStorable11 [2024-11-12 08:02:52,437 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:52,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1465053042, now seen corresponding path program 5 times [2024-11-12 08:02:52,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:52,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369117458] [2024-11-12 08:02:52,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:52,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:02:52,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:52,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369117458] [2024-11-12 08:02:52,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369117458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:52,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648699590] [2024-11-12 08:02:52,910 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 08:02:52,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:52,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:52,914 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) [2024-11-12 08:02:52,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 08:02:52,997 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-12 08:02:52,997 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:02:52,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 08:02:53,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:53,238 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:02:53,239 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:02:53,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648699590] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:53,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:53,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-12 08:02:53,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875818520] [2024-11-12 08:02:53,777 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:53,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-12 08:02:53,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-12 08:02:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2024-11-12 08:02:53,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:53,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 215 transitions, 4157 flow. Second operand has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-12 08:02:53,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:53,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:53,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:02:55,497 INFO L124 PetriNetUnfolderBase]: 2704/5162 cut-off events. [2024-11-12 08:02:55,497 INFO L125 PetriNetUnfolderBase]: For 548902/548908 co-relation queries the response was YES. [2024-11-12 08:02:55,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43935 conditions, 5162 events. 2704/5162 cut-off events. For 548902/548908 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 29002 event pairs, 1013 based on Foata normal form. 69/5230 useless extension candidates. Maximal degree in co-relation 43827. Up to 3618 conditions per place. [2024-11-12 08:02:55,555 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 261 selfloop transitions, 45 changer transitions 95/404 dead transitions. [2024-11-12 08:02:55,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 404 transitions, 9623 flow [2024-11-12 08:02:55,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-12 08:02:55,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-12 08:02:55,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 385 transitions. [2024-11-12 08:02:55,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-11-12 08:02:55,558 INFO L175 Difference]: Start difference. First operand has 233 places, 215 transitions, 4157 flow. Second operand 33 states and 385 transitions. [2024-11-12 08:02:55,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 404 transitions, 9623 flow [2024-11-12 08:02:56,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 404 transitions, 7126 flow, removed 1227 selfloop flow, removed 17 redundant places. [2024-11-12 08:02:56,431 INFO L231 Difference]: Finished difference. Result has 252 places, 231 transitions, 3701 flow [2024-11-12 08:02:56,431 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3046, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=3701, PETRI_PLACES=252, PETRI_TRANSITIONS=231} [2024-11-12 08:02:56,432 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 226 predicate places. [2024-11-12 08:02:56,432 INFO L471 AbstractCegarLoop]: Abstraction has has 252 places, 231 transitions, 3701 flow [2024-11-12 08:02:56,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-12 08:02:56,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:02:56,433 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:02:56,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 08:02:56,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:56,634 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:02:56,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:02:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash -427535638, now seen corresponding path program 6 times [2024-11-12 08:02:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:02:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779190653] [2024-11-12 08:02:56,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:02:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:02:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:02:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:57,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:02:57,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779190653] [2024-11-12 08:02:57,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779190653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:02:57,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655820759] [2024-11-12 08:02:57,043 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-12 08:02:57,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:02:57,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:02:57,045 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) [2024-11-12 08:02:57,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 08:02:57,121 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-12 08:02:57,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:02:57,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 08:02:57,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:02:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:57,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:02:57,812 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:02:57,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655820759] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:02:57,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:02:57,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-12 08:02:57,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445120585] [2024-11-12 08:02:57,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:02:57,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-12 08:02:57,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:02:57,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-12 08:02:57,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=335, Invalid=1305, Unknown=0, NotChecked=0, Total=1640 [2024-11-12 08:02:57,894 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:02:57,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 231 transitions, 3701 flow. Second operand has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-12 08:02:57,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:02:57,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:02:57,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:03:00,284 INFO L124 PetriNetUnfolderBase]: 3208/6315 cut-off events. [2024-11-12 08:03:00,285 INFO L125 PetriNetUnfolderBase]: For 534394/534400 co-relation queries the response was YES. [2024-11-12 08:03:00,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47945 conditions, 6315 events. 3208/6315 cut-off events. For 534394/534400 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 37832 event pairs, 596 based on Foata normal form. 69/6383 useless extension candidates. Maximal degree in co-relation 47832. Up to 2398 conditions per place. [2024-11-12 08:03:00,347 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 265 selfloop transitions, 165 changer transitions 135/568 dead transitions. [2024-11-12 08:03:00,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 568 transitions, 10808 flow [2024-11-12 08:03:00,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-12 08:03:00,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2024-11-12 08:03:00,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 614 transitions. [2024-11-12 08:03:00,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4827044025157233 [2024-11-12 08:03:00,350 INFO L175 Difference]: Start difference. First operand has 252 places, 231 transitions, 3701 flow. Second operand 53 states and 614 transitions. [2024-11-12 08:03:00,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 568 transitions, 10808 flow [2024-11-12 08:03:01,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 568 transitions, 10049 flow, removed 354 selfloop flow, removed 21 redundant places. [2024-11-12 08:03:01,274 INFO L231 Difference]: Finished difference. Result has 295 places, 287 transitions, 4983 flow [2024-11-12 08:03:01,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=3284, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=53, PETRI_FLOW=4983, PETRI_PLACES=295, PETRI_TRANSITIONS=287} [2024-11-12 08:03:01,275 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 269 predicate places. [2024-11-12 08:03:01,275 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 287 transitions, 4983 flow [2024-11-12 08:03:01,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-12 08:03:01,275 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:03:01,276 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:03:01,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-12 08:03:01,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:01,477 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:03:01,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:03:01,477 INFO L85 PathProgramCache]: Analyzing trace with hash 739609620, now seen corresponding path program 7 times [2024-11-12 08:03:01,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:03:01,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407476943] [2024-11-12 08:03:01,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:03:01,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:03:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:03:01,876 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:01,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:03:01,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407476943] [2024-11-12 08:03:01,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407476943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:03:01,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295979749] [2024-11-12 08:03:01,877 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-12 08:03:01,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:01,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:03:01,879 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) [2024-11-12 08:03:01,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 08:03:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:03:01,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 08:03:01,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:03:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 1 proven. 94 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:02,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:03:02,565 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:02,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295979749] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:03:02,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:03:02,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-12 08:03:02,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302891935] [2024-11-12 08:03:02,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:03:02,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-12 08:03:02,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:03:02,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-12 08:03:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1446, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 08:03:02,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:03:02,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 287 transitions, 4983 flow. Second operand has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-12 08:03:02,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:03:02,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:03:02,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:03:06,093 INFO L124 PetriNetUnfolderBase]: 4099/8332 cut-off events. [2024-11-12 08:03:06,093 INFO L125 PetriNetUnfolderBase]: For 905406/905412 co-relation queries the response was YES. [2024-11-12 08:03:06,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70190 conditions, 8332 events. 4099/8332 cut-off events. For 905406/905412 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 54612 event pairs, 288 based on Foata normal form. 87/8418 useless extension candidates. Maximal degree in co-relation 70064. Up to 1947 conditions per place. [2024-11-12 08:03:06,225 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 239 selfloop transitions, 309 changer transitions 157/708 dead transitions. [2024-11-12 08:03:06,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 708 transitions, 15141 flow [2024-11-12 08:03:06,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-12 08:03:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-12 08:03:06,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 694 transitions. [2024-11-12 08:03:06,228 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4901129943502825 [2024-11-12 08:03:06,228 INFO L175 Difference]: Start difference. First operand has 295 places, 287 transitions, 4983 flow. Second operand 59 states and 694 transitions. [2024-11-12 08:03:06,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 708 transitions, 15141 flow [2024-11-12 08:03:08,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 708 transitions, 13664 flow, removed 640 selfloop flow, removed 29 redundant places. [2024-11-12 08:03:08,217 INFO L231 Difference]: Finished difference. Result has 340 places, 384 transitions, 7386 flow [2024-11-12 08:03:08,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=4222, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=287, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=226, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=7386, PETRI_PLACES=340, PETRI_TRANSITIONS=384} [2024-11-12 08:03:08,218 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 314 predicate places. [2024-11-12 08:03:08,218 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 384 transitions, 7386 flow [2024-11-12 08:03:08,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-12 08:03:08,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:03:08,219 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:03:08,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-12 08:03:08,419 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,SelfDestructingSolverStorable14 [2024-11-12 08:03:08,419 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:03:08,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:03:08,420 INFO L85 PathProgramCache]: Analyzing trace with hash 39792594, now seen corresponding path program 8 times [2024-11-12 08:03:08,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:03:08,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408418949] [2024-11-12 08:03:08,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:03:08,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:03:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:03:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:08,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:03:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408418949] [2024-11-12 08:03:08,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408418949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:03:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321508066] [2024-11-12 08:03:08,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 08:03:08,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:08,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:03:08,758 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) [2024-11-12 08:03:08,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 08:03:08,824 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 08:03:08,825 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:03:08,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 08:03:08,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:03:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:08,927 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:03:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:09,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321508066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:03:09,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:03:09,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 40 [2024-11-12 08:03:09,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709331907] [2024-11-12 08:03:09,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:03:09,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-12 08:03:09,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:03:09,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-12 08:03:09,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1383, Unknown=0, NotChecked=0, Total=1640 [2024-11-12 08:03:09,298 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:03:09,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 384 transitions, 7386 flow. Second operand has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-12 08:03:09,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:03:09,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:03:09,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:03:13,060 INFO L124 PetriNetUnfolderBase]: 5143/10444 cut-off events. [2024-11-12 08:03:13,061 INFO L125 PetriNetUnfolderBase]: For 1551652/1551658 co-relation queries the response was YES. [2024-11-12 08:03:13,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97699 conditions, 10444 events. 5143/10444 cut-off events. For 1551652/1551658 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 72171 event pairs, 150 based on Foata normal form. 87/10530 useless extension candidates. Maximal degree in co-relation 97556. Up to 2499 conditions per place. [2024-11-12 08:03:13,172 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 222 selfloop transitions, 422 changer transitions 157/804 dead transitions. [2024-11-12 08:03:13,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 804 transitions, 18543 flow [2024-11-12 08:03:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-12 08:03:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2024-11-12 08:03:13,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 704 transitions. [2024-11-12 08:03:13,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4971751412429379 [2024-11-12 08:03:13,175 INFO L175 Difference]: Start difference. First operand has 340 places, 384 transitions, 7386 flow. Second operand 59 states and 704 transitions. [2024-11-12 08:03:13,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 804 transitions, 18543 flow [2024-11-12 08:03:16,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 804 transitions, 15884 flow, removed 1181 selfloop flow, removed 31 redundant places. [2024-11-12 08:03:16,381 INFO L231 Difference]: Finished difference. Result has 384 places, 480 transitions, 9434 flow [2024-11-12 08:03:16,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=5931, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=341, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=59, PETRI_FLOW=9434, PETRI_PLACES=384, PETRI_TRANSITIONS=480} [2024-11-12 08:03:16,382 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 358 predicate places. [2024-11-12 08:03:16,382 INFO L471 AbstractCegarLoop]: Abstraction has has 384 places, 480 transitions, 9434 flow [2024-11-12 08:03:16,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 7.121951219512195) internal successors, (292), 41 states have internal predecessors, (292), 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) [2024-11-12 08:03:16,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:03:16,383 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:03:16,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-12 08:03:16,584 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,SelfDestructingSolverStorable15 [2024-11-12 08:03:16,584 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:03:16,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:03:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2146966046, now seen corresponding path program 9 times [2024-11-12 08:03:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:03:16,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608596739] [2024-11-12 08:03:16,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:03:16,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:03:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:03:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:16,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:03:16,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608596739] [2024-11-12 08:03:16,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608596739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:03:16,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468482571] [2024-11-12 08:03:16,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 08:03:16,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:16,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:03:16,959 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) [2024-11-12 08:03:16,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 08:03:17,026 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-12 08:03:17,027 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:03:17,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 08:03:17,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:03:17,123 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 1 proven. 137 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:17,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:03:17,535 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:17,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468482571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:03:17,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:03:17,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2024-11-12 08:03:17,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258325081] [2024-11-12 08:03:17,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:03:17,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-12 08:03:17,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:03:17,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-12 08:03:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1407, Unknown=0, NotChecked=0, Total=1722 [2024-11-12 08:03:17,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:03:17,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 384 places, 480 transitions, 9434 flow. Second operand has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-12 08:03:17,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:03:17,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:03:17,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:03:22,014 INFO L124 PetriNetUnfolderBase]: 5917/11880 cut-off events. [2024-11-12 08:03:22,015 INFO L125 PetriNetUnfolderBase]: For 2030900/2030906 co-relation queries the response was YES. [2024-11-12 08:03:22,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117443 conditions, 11880 events. 5917/11880 cut-off events. For 2030900/2030906 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 83621 event pairs, 66 based on Foata normal form. 96/11975 useless extension candidates. Maximal degree in co-relation 117282. Up to 2811 conditions per place. [2024-11-12 08:03:22,362 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 215 selfloop transitions, 495 changer transitions 162/875 dead transitions. [2024-11-12 08:03:22,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 875 transitions, 21133 flow [2024-11-12 08:03:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-12 08:03:22,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2024-11-12 08:03:22,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 727 transitions. [2024-11-12 08:03:22,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5048611111111111 [2024-11-12 08:03:22,365 INFO L175 Difference]: Start difference. First operand has 384 places, 480 transitions, 9434 flow. Second operand 60 states and 727 transitions. [2024-11-12 08:03:22,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 875 transitions, 21133 flow [2024-11-12 08:03:27,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 875 transitions, 18581 flow, removed 1090 selfloop flow, removed 34 redundant places. [2024-11-12 08:03:27,584 INFO L231 Difference]: Finished difference. Result has 424 places, 540 transitions, 11119 flow [2024-11-12 08:03:27,585 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=7796, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=60, PETRI_FLOW=11119, PETRI_PLACES=424, PETRI_TRANSITIONS=540} [2024-11-12 08:03:27,585 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 398 predicate places. [2024-11-12 08:03:27,585 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 540 transitions, 11119 flow [2024-11-12 08:03:27,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 7.142857142857143) internal successors, (300), 42 states have internal predecessors, (300), 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) [2024-11-12 08:03:27,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:03:27,586 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:03:27,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-12 08:03:27,786 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,SelfDestructingSolverStorable16 [2024-11-12 08:03:27,786 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:03:27,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:03:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash 794305653, now seen corresponding path program 10 times [2024-11-12 08:03:27,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:03:27,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865539737] [2024-11-12 08:03:27,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:03:27,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:03:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:03:28,059 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:03:28,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:03:28,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865539737] [2024-11-12 08:03:28,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865539737] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:03:28,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72403878] [2024-11-12 08:03:28,060 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 08:03:28,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:28,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:03:28,063 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) [2024-11-12 08:03:28,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 08:03:28,120 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 08:03:28,120 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:03:28,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-12 08:03:28,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:03:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:03:28,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:03:28,481 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 209 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-12 08:03:28,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72403878] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:03:28,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:03:28,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 42 [2024-11-12 08:03:28,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736692271] [2024-11-12 08:03:28,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:03:28,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-12 08:03:28,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:03:28,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-12 08:03:28,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=1412, Unknown=0, NotChecked=0, Total=1806 [2024-11-12 08:03:28,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:03:28,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 540 transitions, 11119 flow. Second operand has 43 states, 43 states have (on average 7.1395348837209305) internal successors, (307), 43 states have internal predecessors, (307), 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) [2024-11-12 08:03:28,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:03:28,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:03:28,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:03:32,815 INFO L124 PetriNetUnfolderBase]: 6052/12223 cut-off events. [2024-11-12 08:03:32,816 INFO L125 PetriNetUnfolderBase]: For 2561735/2561741 co-relation queries the response was YES. [2024-11-12 08:03:32,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127916 conditions, 12223 events. 6052/12223 cut-off events. For 2561735/2561741 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 86715 event pairs, 203 based on Foata normal form. 33/12253 useless extension candidates. Maximal degree in co-relation 127740. Up to 2865 conditions per place. [2024-11-12 08:03:32,975 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 226 selfloop transitions, 479 changer transitions 87/795 dead transitions. [2024-11-12 08:03:32,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 456 places, 795 transitions, 19462 flow [2024-11-12 08:03:32,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-12 08:03:32,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2024-11-12 08:03:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 524 transitions. [2024-11-12 08:03:32,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5077519379844961 [2024-11-12 08:03:32,978 INFO L175 Difference]: Start difference. First operand has 424 places, 540 transitions, 11119 flow. Second operand 43 states and 524 transitions. [2024-11-12 08:03:32,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 456 places, 795 transitions, 19462 flow [2024-11-12 08:03:39,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 414 places, 795 transitions, 15997 flow, removed 1429 selfloop flow, removed 42 redundant places. [2024-11-12 08:03:39,508 INFO L231 Difference]: Finished difference. Result has 421 places, 558 transitions, 10908 flow [2024-11-12 08:03:39,509 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=9076, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=461, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=43, PETRI_FLOW=10908, PETRI_PLACES=421, PETRI_TRANSITIONS=558} [2024-11-12 08:03:39,509 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 395 predicate places. [2024-11-12 08:03:39,510 INFO L471 AbstractCegarLoop]: Abstraction has has 421 places, 558 transitions, 10908 flow [2024-11-12 08:03:39,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 7.1395348837209305) internal successors, (307), 43 states have internal predecessors, (307), 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) [2024-11-12 08:03:39,510 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:03:39,510 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:03:39,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-12 08:03:39,710 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,SelfDestructingSolverStorable17 [2024-11-12 08:03:39,711 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:03:39,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:03:39,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2079276827, now seen corresponding path program 11 times [2024-11-12 08:03:39,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:03:39,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493023712] [2024-11-12 08:03:39,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:03:39,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:03:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:03:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 188 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:39,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:03:39,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493023712] [2024-11-12 08:03:39,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493023712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 08:03:39,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135692501] [2024-11-12 08:03:39,986 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-12 08:03:39,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:39,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:03:39,990 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) [2024-11-12 08:03:39,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 08:03:40,044 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-12 08:03:40,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 08:03:40,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-12 08:03:40,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 08:03:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 188 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:40,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 08:03:40,427 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 188 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 08:03:40,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135692501] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 08:03:40,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 08:03:40,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 43 [2024-11-12 08:03:40,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779470837] [2024-11-12 08:03:40,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 08:03:40,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-12 08:03:40,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:03:40,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-12 08:03:40,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2024-11-12 08:03:40,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 24 [2024-11-12 08:03:40,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 421 places, 558 transitions, 10908 flow. Second operand has 44 states, 44 states have (on average 7.113636363636363) internal successors, (313), 44 states have internal predecessors, (313), 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) [2024-11-12 08:03:40,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:03:40,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 24 [2024-11-12 08:03:40,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:03:44,930 INFO L124 PetriNetUnfolderBase]: 6025/12180 cut-off events. [2024-11-12 08:03:44,930 INFO L125 PetriNetUnfolderBase]: For 2007512/2007518 co-relation queries the response was YES. [2024-11-12 08:03:45,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115548 conditions, 12180 events. 6025/12180 cut-off events. For 2007512/2007518 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 86385 event pairs, 152 based on Foata normal form. 51/12230 useless extension candidates. Maximal degree in co-relation 115374. Up to 2817 conditions per place. [2024-11-12 08:03:45,104 INFO L140 encePairwiseOnDemand]: 18/24 looper letters, 212 selfloop transitions, 492 changer transitions 101/808 dead transitions. [2024-11-12 08:03:45,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 808 transitions, 17939 flow [2024-11-12 08:03:45,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-12 08:03:45,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-12 08:03:45,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 546 transitions. [2024-11-12 08:03:45,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5055555555555555 [2024-11-12 08:03:45,106 INFO L175 Difference]: Start difference. First operand has 421 places, 558 transitions, 10908 flow. Second operand 45 states and 546 transitions. [2024-11-12 08:03:45,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 808 transitions, 17939 flow [2024-11-12 08:03:50,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 438 places, 808 transitions, 16312 flow, removed 658 selfloop flow, removed 24 redundant places. [2024-11-12 08:03:50,508 INFO L231 Difference]: Finished difference. Result has 444 places, 561 transitions, 11397 flow [2024-11-12 08:03:50,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=10069, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=489, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=11397, PETRI_PLACES=444, PETRI_TRANSITIONS=561} [2024-11-12 08:03:50,509 INFO L279 CegarLoopForPetriNet]: 26 programPoint places, 418 predicate places. [2024-11-12 08:03:50,509 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 561 transitions, 11397 flow [2024-11-12 08:03:50,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.113636363636363) internal successors, (313), 44 states have internal predecessors, (313), 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) [2024-11-12 08:03:50,509 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:03:50,509 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:03:50,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-12 08:03:50,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 08:03:50,710 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-12 08:03:50,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:03:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash 656074616, now seen corresponding path program 12 times [2024-11-12 08:03:50,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:03:50,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243360748] [2024-11-12 08:03:50,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:03:50,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:03:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 08:03:50,725 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 08:03:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 08:03:50,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 08:03:50,777 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 08:03:50,778 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-12 08:03:50,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-12 08:03:50,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-12 08:03:50,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-12 08:03:50,782 INFO L421 BasicCegarLoop]: Path program histogram: [12, 3, 2, 1, 1, 1] [2024-11-12 08:03:50,893 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 08:03:50,893 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 08:03:50,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:03:50 BasicIcfg [2024-11-12 08:03:50,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 08:03:50,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 08:03:50,905 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 08:03:50,905 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 08:03:50,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:02:38" (3/4) ... [2024-11-12 08:03:50,906 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-12 08:03:50,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 08:03:50,994 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 08:03:50,994 INFO L158 Benchmark]: Toolchain (without parser) took 73906.66ms. Allocated memory was 169.9MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 138.4MB in the beginning and 9.6GB in the end (delta: -9.4GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-12 08:03:50,995 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 08:03:50,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.59ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 116.4MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 08:03:50,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.94ms. Allocated memory is still 169.9MB. Free memory was 116.4MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 08:03:50,995 INFO L158 Benchmark]: Boogie Preprocessor took 54.71ms. Allocated memory is still 169.9MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 08:03:50,995 INFO L158 Benchmark]: RCFGBuilder took 454.74ms. Allocated memory is still 169.9MB. Free memory was 112.3MB in the beginning and 124.9MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 08:03:50,996 INFO L158 Benchmark]: TraceAbstraction took 72697.33ms. Allocated memory was 169.9MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 123.9MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-12 08:03:50,996 INFO L158 Benchmark]: Witness Printer took 89.38ms. Allocated memory is still 11.4GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 08:03:50,997 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 109.1MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.59ms. Allocated memory is still 169.9MB. Free memory was 138.4MB in the beginning and 116.4MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.94ms. Allocated memory is still 169.9MB. Free memory was 116.4MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.71ms. Allocated memory is still 169.9MB. Free memory was 114.4MB in the beginning and 112.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.74ms. Allocated memory is still 169.9MB. Free memory was 112.3MB in the beginning and 124.9MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 72697.33ms. Allocated memory was 169.9MB in the beginning and 11.4GB in the end (delta: 11.3GB). Free memory was 123.9MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 89.38ms. Allocated memory is still 11.4GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L694] 0 int i = 3, j = 6; [L712] 0 pthread_t id1, id2; [L713] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, argc=51, i=3, id1=-2, j=6] [L696] 1 int k = 0; VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=6, k=0] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, arg={0:0}, i=3, j=6, k=0] [L714] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, argc=51, i=3, id1=-2, id2=-1, j=6, k=0] [L704] 2 int k = 0; VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=3, j=6, k=0, k=0] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=0] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=6, k=0, k=1] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=0, k=1] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=7, j=8, k=1, k=1] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=1] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=8, k=1, k=2] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=1, k=2] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=9, j=10, k=2, k=2] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=2] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=10, k=2, k=3] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=2, k=3] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=11, j=12, k=3, k=3] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=3] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=12, k=3, k=4] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=3, k=4] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=13, j=14, k=4, k=4] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=4] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=14, k=4, k=5] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=4, k=5] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=15, j=16, k=5, k=5] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=5] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=16, k=5, k=6] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=5, k=6] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=17, j=18, k=6, k=6] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=6] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=6] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=18, k=6, k=7] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=6, k=7] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=19, j=20, k=7, k=7] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=7] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=20, k=7, k=8] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=7, k=8] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=21, j=22, k=8, k=8] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=8] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=8] [L696] 1 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=22, k=8, k=9] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=8, k=9] [L704] 2 k++ VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L716] 0 int condI = i >= (2*10 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, i=23, id1=-2, id2=-1, j=24, k=9, k=9] [L696] COND TRUE 1 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=23, j=24, k=9, k=9] [L698] 1 i = j + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=9] [L704] COND TRUE 2 k < 10 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=24, k=9, k=9] [L706] 2 j = i + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, arg={0:0}, arg={0:0}, i=25, j=26, k=9, k=9] [L719] 0 int condJ = j >= (2*10 +6); VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=25, id1=-2, id2=-1, j=26, k=9, k=9] [L721] COND TRUE 0 condI || condJ VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=25, id1=-2, id2=-1, j=26, k=9, k=9] [L722] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(argc)=51, \old(argv)={49:50}, arg={0:0}, arg={0:0}, argc=51, condI=0, condJ=1, i=25, id1=-2, id2=-1, j=26, k=9, k=9] - UnprovableResult [Line: 713]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - 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: 72.5s, OverallIterations: 20, TraceHistogramMax: 10, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 59.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8138 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8115 mSDsluCounter, 415 SdHoareTripleChecker+Invalid, 5.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 406 mSDsCounter, 439 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9068 IncrementalHoareTripleChecker+Invalid, 9507 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 439 mSolverCounterUnsat, 9 mSDtfsCounter, 9068 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1851 GetRequests, 982 SyntacticMatches, 0 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17971 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11397occurred in iteration=19, InterpolantAutomatonStates: 576, 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, 9.4s InterpolantComputationTime, 1323 NumberOfCodeBlocks, 1323 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 1793 ConstructedInterpolants, 0 QuantifiedInterpolants, 8038 SizeOfPredicates, 160 NumberOfNonLiveVariables, 1678 ConjunctsInSsa, 220 ConjunctsInUnsatCore, 43 InterpolantComputations, 7 PerfectInterpolantSequences, 47/3423 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-12 08:03:51,031 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE